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Fabrication and control of nuclear-and electron spin quantum bits

Research Project

Project/Area Number 14076215
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionKeio University

Principal Investigator

ITOH Kohei  Keio University, Faculty of Science and Technology, Associate Professor, 理工学部, 助教授 (30276414)

Co-Investigator(Kenkyū-buntansha) TARUCHA Seigo  University of Tokyo, Graduate School of Engineering, Professor, 物理工学研究所, 教授 (40302799)
Project Period (FY) 2002 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥43,000,000 (Direct Cost: ¥43,000,000)
Fiscal Year 2005: ¥11,100,000 (Direct Cost: ¥11,100,000)
Fiscal Year 2004: ¥11,100,000 (Direct Cost: ¥11,100,000)
Fiscal Year 2003: ¥9,600,000 (Direct Cost: ¥9,600,000)
Fiscal Year 2002: ¥11,200,000 (Direct Cost: ¥11,200,000)
KeywordsSpin / Semiconductor / Isotope / Quantum control / Spintronics
Research Abstract

We have performed fundamental research on quantum manipulation of 29Si nuclear spins that are artificially placed in a well-defined manner in isotopically controlled silicon single crystals. Here spin manipulation refers to as initialization (polarization enhancement) and extension of phase coherence time by appropriate irradiation of pulsed radio frequency sequences.
As a first step, we have successfully understood physics of silicon surfaces for appropriate placing of specific silicon isotopes in a very well-defined manner and succeeded in realization of atomic arrays that were suitable for silicon nuclear spin quantum computation. We have also proposed new methods to initialize 29Si nuclear spins using either light or electron spin resonance, and confirmed their effectiveness experimentally by increasing the nuclear spin polarization by the three orders of magnitude. In parallel, we have succeeded in extension of the phase coherence time up to 25 seconds at room temperature. For the readout, we have proposed new methods based on light or electron spin resonance and experimentally demonstrated successful readout of the nuclear spin states in silicon.

Report

(5 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report
  • 2002 Annual Research Report
  • Research Products

    (82 results)

All 2005 2004 2003 2002 Other

All Journal Article (68 results) Publications (14 results)

  • [Journal Article] An All-silicon Linear Chain NMR Quantum Computer2005

    • Author(s)
      K.M.Itoh
    • Journal Title

      Solid State Comm. 133

      Pages: 747-747

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Atomically Straight Steps on Vicinal Si(111) Surfaces Prepared by Step-parallel Current in the Kink-up Direction2005

    • Author(s)
      S.Yoshida, T.Sekiguchi, K.M.Itoh
    • Journal Title

      Appl. Phys. Lett. 87

      Pages: 31903-31903

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Self-assembly of Parallel Atomic Wires and Periodic Clusters of Silicon on a Vicinal Si(111) Surface2005

    • Author(s)
      T.Sekiguchi, S.Yoshida, K.M.Itoh
    • Journal Title

      Phys. Rev. Lett. 95

      Pages: 106101-106101

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Magnetic Mesa Structures Fabricated by Reactive Ion Etching with CO/NH3/Xe Plasma Chemistry for an All-Silicon Quantum Computer2005

    • Author(s)
      D.F.Wang, A.Takahashi, Y.Matsumoto, K.M.Itoh, Y.Yamamoto 他
    • Journal Title

      Nanotechnology 16

      Pages: 990-994

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Optical Pumping of ^<29>Si Nuclear Spins in Bulk Silicon at High Magnetic Field and Liquid Helium Temperature2005

    • Author(s)
      A.S.Verhult, I.G.Rau, Y.Yamamoto, K.M.Itoh
    • Journal Title

      Phys. Rev. B 71

      Pages: 235206-235206

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Coherence Time of Decoupled Nuclear Spins in Silicon2005

    • Author(s)
      T.D.Ladd, D.Maryenko, Y.Yamamoto, E.Abe, K.M.Itoh
    • Journal Title

      Phys. Rev. B 71

      Pages: 14401-14401

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Fast quantum modular exponentiation2005

    • Author(s)
      R.Van Meter, K.M.Itoh
    • Journal Title

      Phys. Rev. A 71

      Pages: 52320-52320

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Electron Spin Coherence of Phosphorus Donors in Isotopically Purified ^<29>Si2005

    • Author(s)
      E.Abe, J.Isoya, K.M.Itoh
    • Journal Title

      Journal of Superconductivity 18

      Pages: 157-157

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Annual Research Report 2005 Final Research Report Summary
  • [Journal Article] Anharmonicity and Lattice Coupling of Bond-Centered Hydrogen and Interstitial Oxygen Defects in Monoisotopic Silicon Crystals2005

    • Author(s)
      R.N.Pereira, B.B.Nielsen, J.Coutinho, V.J.B.Torres 他
    • Journal Title

      Phys. Rev. B 72

      Pages: 115212-115212

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Host Isotope Effect on the Local Vibration Modes of VH_2 and VOH_2 Defects in Isotopically Enriched ^<28>Si, ^<29>Si and ^<30>Si Single Crystals2005

    • Author(s)
      T.Ohya, K.M.Itoh, R.N.Pereira, B.B.Nielsen
    • Journal Title

      Jpn. J. Appl. Phys. 44

      Pages: 7309-7313

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Host isotope effects on midinfrared optical transitions in silicon2005

    • Author(s)
      G.Davies, S.Hayama, S.Hao, B.B/ Nielsen, J.Coutinho 他
    • Journal Title

      Phys. Rev. B 71

      Pages: 115212-115212

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] An All-Silicon Linear Chain NMR Quantum Computer2005

    • Author(s)
      Kohei M. Itoh
    • Journal Title

      Solid State Comm. 133

      Pages: 747-747

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Atomically Straight Steps on Vicinal Si(111) Surfaces Prepared by Step-Parallel Current in the Kink-up Direction2005

    • Author(s)
      S.Yoshida, T.Sekiguchi, K.M.Itoh
    • Journal Title

      Appl. Phys. Lett. 87

      Pages: 31903-31903

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Self-Assembly of Parallel Atomic Wires and Periodic Clusters of Silicon on a Vicinal Si(111) Surface2005

    • Author(s)
      T.Sekiguchi, S.Yoshida, K.M.Itoh
    • Journal Title

      Phys. Rev. Lett. 95

      Pages: 106101-106101

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Magnetic Mesa Structures Fabricated by Reactive Ion Etching with CO/NH3/Xe Plasma Chemistry for an All-Silicon Quantum Computer2005

    • Author(s)
      D.R Wang, A.Takahashi, Y.Matsumoto, K.M.Itoh, Y.Yamamoto, T.Ono, M.Esashi
    • Journal Title

      Nanotechnology 16

      Pages: 990-994

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Optical Pumping of 29Si Nuclear Spins in Bulk Silicon at High Magnetic Field and Liquid Helium Temperature2005

    • Author(s)
      A.S.Verhulst, I.G.Rau, Y.Yamamoto, K.M.Itoh
    • Journal Title

      Phys. Rev. B 71

      Pages: 235206-235206

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Electron Spin Coherence of Phosphorus Donors in Isotopically Purified29Si2005

    • Author(s)
      E.Abe, J.Isoya, K.M.Itoh
    • Journal Title

      Journal of Superconductivity 18

      Pages: 157-157

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Anharmonicity and Lattice Coupling of Bond-Centered Hydrogen and Interstitial Oxygen Defects in Monoisotopic Silicon Crystals2005

    • Author(s)
      R.N.Pereira, B.B.Nielsen, J.Coutinho, V.J.B.Torres, R.Jones, T.Ohya, K.M.Itoh, P.R.Briddon
    • Journal Title

      Phys. Rev. B 72

      Pages: 115212-115212

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Host Isotope Effect on the Local Vibration Modes of VH2 and VOH2 Defects in Isotopically Enriched 28Si, 29Si and 30Si Single Crystals2005

    • Author(s)
      T.Ohya, K.M.Itho, R.N.Pereira, B.B.Nielsen
    • Journal Title

      Jpn. J. Appl. Phys. 44-10

      Pages: 7309-7313

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Host isotope effects on midinfrared optical transitions in silicon2005

    • Author(s)
      G Davies, S.Hayama, Shiqiang Hao, B.Bech Nielsen, J.Coutinho, M.Sanati, S.K.Estreicher, K.M.Itoh
    • Journal Title

      Phys. Rev. B 71

      Pages: 115212-115212

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Atomically Straight Steps on Vicinal Si(111) Surfaces Prepared by Step-parallel Current in the Kink-up Direction2005

    • Author(s)
      S.Yoshida, T.Sekiguchi, K.M.Itoh
    • Journal Title

      Appl.Phys.Lett. 87

      Pages: 31903-31903

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Self-assembly of Parallel Atomic Wires and Periodic Clusters of Silicon on a Vicinal Si(111) Surface2005

    • Author(s)
      T.Sekiguchi, S.Yoshida, K.M.Itoh
    • Journal Title

      Phys.Rev.Lett. 95

      Pages: 106101-106101

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Magnetic Mesa Structures Fabricated by Reactive Ion Etching with CO/NH_3/Xe Plasma Chemistry for an All-Silicon Quantum Computer2005

    • Author(s)
      D.F.Wang, A.Takahashi, Y.Matsumoto, K.M.Itoh, Y.Yamamoto, T.Ono, M.Esashi
    • Journal Title

      Nanotechnology 16

      Pages: 990-994

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Optical Pumping of ^<29>Si Nuclear Spins in Bulk Silicon at High Magnetic Field and Liquid Helium Temperature2005

    • Author(s)
      A.S.Verhult, I.G.Rau, Y.Yamamoto, K.M.Itoh
    • Journal Title

      Phys.Rev.B 71

      Pages: 235206-235206

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Coherence Time of Decoupled Nuclear Spins in Silicon2005

    • Author(s)
      T.D.Ladd, D.Maryenko, Y.Yamamoto, E.Abe, K.M.Itoh
    • Journal Title

      Phys.Rev.B 71

      Pages: 14401-14401

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Fast quantum modular exponentiation2005

    • Author(s)
      R.Van Meter, K.M.Itoh
    • Journal Title

      Phys.Rev.A 71

      Pages: 52320-52320

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Anharmonicity and Lattice Coupling of Bond-Centered Hydrogen and Interstitial Oxygen Defects in Monoisotopic Silicon Crystals2005

    • Author(s)
      R.N.Pereira, B.B.Nielsen, J.Coutinho, V.J.B.Torres, R.Jones, T.Ohya, K.M.Itoh, P.R.Briddon
    • Journal Title

      Phys.Rev.B 71

      Pages: 115212-115212

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Host Isotope Effect on the Local Vibration Modes of VH_2 and VOH_2 Defcets in Isotopically Enriched ^<28>Si,^<29>Si and ^<30>Si Single Crystals2005

    • Author(s)
      T.Ohya, K.M.Itho, R.N.Pereira, B.B.Nielsen
    • Journal Title

      Jpn.J.Appl.Phys. 44・1

      Pages: 7309-7313

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Lattice Isotope Effects on the Widths of Optical Transitions in Silicon2005

    • Author(s)
      G.Davies, S.Hayama, S.Hao, J.Coutinho, S.K.Estreicher, M.Sanati, K.M.Itoh
    • Journal Title

      J.Phys. : Condens.Matter 17

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Host isotope effects on midinfrared optical transitions in silicon2005

    • Author(s)
      G.Davies, S.Hayama, S.Hao, B.B.Nielsen, J.Coutinho, M.Sanati, S.K.Estreicher, K.M.Itoh
    • Journal Title

      Phys.Rev.B 71

      Pages: 115212-115212

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Novel Phase Diagram of Superconductivity and Ferromagnetism in UGe_2 : a ^<73>Ge-NQR Study under High Pressure2005

    • Author(s)
      Y.Kitaoka, H.Kotegawa, A.Harada, S.Kawasaki, Y.Kawasaki, Y.Haga, E.Yamamoto, Y.Onuki, K.M.Itoh, E.E.Haller, H.Harima
    • Journal Title

      J.Phys. : Condens.Matter 17

      Pages: 975-986

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Evidence for the Microscopic Coexistence of Superconductivity and Ferromagnetism in UGe_2 : ^<73>Ge-NMR/NQR Study2005

    • Author(s)
      A.Harada, H.Kotegawa, S.Kawasaki, Y.Kawasaki, G.-q.Zheng, Y.Kitaoka, E.Yamamoto, Y.Haga, Y.Onuki, K.Itoh, E.E.Haller
    • Journal Title

      Physica B 359-361

      Pages: 1057-1059

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Site Selective Growth of Ge Quantum Dots on AFM Patterned Si Substrates2004

    • Author(s)
      A.Hirai, K.M.Itoh
    • Journal Title

      Physica E 23

      Pages: 248-248

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary 2004 Annual Research Report
  • [Journal Article] Lattice Isotope Effects on Optical Transitions in Silicon2004

    • Author(s)
      S.Hayama, G.Davies, J.Tan, R.Jones, K.M.Itoh 他
    • Journal Title

      Phys. Rev. B 70

      Pages: 35202-35202

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Photoluminescence studies of implantation damage centers in ^<30>Si2004

    • Author(s)
      S Hayama, G.Davies, K.M.Itoh
    • Journal Title

      J. Appl. Phys. 96

      Pages: 1754-1754

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Electron-spin phase relaxation of phosphorus donors in nuclear-spin-enriched silicon2004

    • Author(s)
      E.Abe, K.M.Itoh, J.Isoya, S.Yamasaki
    • Journal Title

      Phys. Rev. B 70

      Pages: 33204-33204

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Lattice Isotope Effects on Optical Transitions in Silicon2004

    • Author(s)
      S.Hayama, G.Davies, J.Tan, J.Coutinho, R.Jones, K.M.Itoh
    • Journal Title

      Phys. Rev. B 70

      Pages: 35202-35202

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Photoluminescence Studies of Implantation Damage Centers in 30Si2004

    • Author(s)
      S.Hayama, G.Davies, K.M.Itoh
    • Journal Title

      J. Appl. Phys. 96

      Pages: 1754-1754

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Electron-Spin Phase Relaxation of Phosphorus Donors in Nuclear-Spin-Enriched Silicon2004

    • Author(s)
      E.Abe, K.M.Itoh, J.Isoya, S.Yamasaki
    • Journal Title

      Phys. Rev. B 70

      Pages: 33204-33204

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Electron-spin Phase Relaxation of Phosphorus Donors in Nuclear-spin-enriched Silicon2004

    • Author(s)
      E.Abe, K.M.Itoh, J.Isoya, S.Yamasaki
    • Journal Title

      Phys.Rev.B 70

      Pages: 33204-33204

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Lattice Isotope Effects on Optical Transitions in Silicon2004

    • Author(s)
      S.Hayama, G.Davies, J.Tan, R.Jones, K.M.Itoh 他
    • Journal Title

      Phys.Rev.B 70

      Pages: 35202-35202

    • Related Report
      2004 Annual Research Report
  • [Journal Article] 量子演算につながるコヒーレンス2004

    • Author(s)
      伊藤公平
    • Journal Title

      応用物理 73・6

      Pages: 782-786

    • NAID

      10013078995

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Photoluminescence studies of implantation damage centers in ^<30>Si2004

    • Author(s)
      S.Hayama, G.Davies, K.M.Itoh
    • Journal Title

      J.Appl.Phys. 96

      Pages: 1754-1754

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Electron-spin phase relaxation of phosphorus donors in nuclear-spin-enriched silicon2004

    • Author(s)
      E.Abe, K.M.Itoh, J.Isoya, S.Yamasaki
    • Journal Title

      Phys.Rev.B 70

      Pages: 33204-33204

    • Related Report
      2004 Annual Research Report
  • [Journal Article] Far-Infrared Spectroscopy of Coulomb Gap in Compensated Semiconduntors2003

    • Author(s)
      J.Kato, K.M.Itoh
    • Journal Title

      J. Phys. Soc. Jpn. Suppl. 72

      Pages: 215-216

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Hyperfine Interactions at Dangling Bonds In Amorphous Germanium2003

    • Author(s)
      T.Graf, T.Ishikawa, K.M.Itoh, E.E.Haller, M.Stutzmann 他
    • Journal Title

      Phys. Rev. B 68

      Pages: 205208-205208

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Local Vibrational Modes of Bond-centerd H in ^<28>Si, ^<29>Si, and ^<30>Si crystals2003

    • Author(s)
      R.N.Pereira, T.Ohya, K.M.Itoh, B.Bech Nielsen
    • Journal Title

      Physica E 340-342

      Pages: 697-700

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Mechanism of superconductivity in the polyhedral-network compound Ba_8Si_<46>2003

    • Author(s)
      K.Tanigaki, T.Shimizu, K.M.Itoh, J.Teraoka, Y.Moritomo 他
    • Journal Title

      Nature Materials 2

      Pages: 653-655

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Growth and Characterization of ^<28>Ain/^<30>Sin Isotope Superlattices2003

    • Author(s)
      T.Kojima, K.M.Itoh, Y.Shiraki
    • Journal Title

      Appl. Phys. Lett. 83

      Pages: 2318-2320

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] High Purity Isotopically Enriched ^<29>Si and ^<30>Si Single Crystals : Isotope Separation, Purification, and Growth2003

    • Author(s)
      K.M.Itoh, J.Kato, F.Uemura, A.K.Kaliteyevskii, O.N.Godisov 他
    • Journal Title

      Jpn. J. Appl. Phys. Pt. 1 42

      Pages: 6248-6251

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Double and Single Peaks in Nuclear Magnetic Resonance Spectra of Natural and ^<29>Si Enriched Single Crystal Silicon2003

    • Author(s)
      A.S.Verhulst, D.Maryenko, Y.Yamamoto, K.M.Itoh
    • Journal Title

      Phys. Rev. B 68

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Host Isotope Effect on the Localized Vibrational Modes of Oxygen in Isotopically Enriched ^<28>Si, ^<30>Si Single Crystals2003

    • Author(s)
      J.Kato, K.M.Itoh, H.Yamda-Kaneta, H.-j.Pohl
    • Journal Title

      Phys. Rev. B 68

      Pages: 35205-35205

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Solid-State silicon NMR quantum computer2003

    • Author(s)
      E.Abe, K.M.Itoh, T.D.Ladd, J.R.Goldman, F.Yamaguchi 他
    • Journal Title

      Journal of Superconductivity 16

      Pages: 175-175

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Hyperfine Interactions at Dangling Bonds in Amorphous Germanium2003

    • Author(s)
      T.Graf, T.Ishikawa, K.M.Itoh, E.E.Haller, M.Stutzmann, M.S.Brandt
    • Journal Title

      Phys. Rev. B 68

      Pages: 205208-205208

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Local Vibrational Modes of Bond-centerd H in 28Si, 29Si, and 30Si Crystals2003

    • Author(s)
      R.N.Pereira, T.Ohya, K.M.Itoh, B.Bech Nielsen
    • Journal Title

      Physica B 340-342

      Pages: 697-700

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Mechanism of Superconductivity in the Polyhedral-Network Compound Ba8Si462003

    • Author(s)
      K.Tanigaki, T.Shimizu, K.M.Itoh, J.Teraoka, Y.Moritomo, S.Yamanaka
    • Journal Title

      Nature Materials 2

      Pages: 653-655

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Growth and CharacteriZation of 28Sin/3ーSin Isotope Superlattices2003

    • Author(s)
      T.Kojima, K.M.Itoh, Y.Shiraki
    • Journal Title

      Appl. Phys. Lett. 83

      Pages: 2318-2320

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] High Purity Isotopically Enriched 29Si and 30Si Single Crystals : Isotope Separation, Purification, and Growth2003

    • Author(s)
      K.M.Itoh, J.Kato, F.Uemura, A.K.Kaliteyevskii, O.N.Godisov, G G.Devyatych, A.D.Bulanov, A.V.Gusev, I.D.Kovalev, P.G.Sennikov, H.-J.Pohl, N.V.Abrosimov, H.Riemann
    • Journal Title

      Jpn. J. Appl. Phys. Pt. 1,42

      Pages: 6248-6251

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Double and Single Peaks in Nuclear Magnetic Resonance Spectra of Natural and 29Si Enriched Single Crystal Silicon2003

    • Author(s)
      A.S.Verhulst, D.Maryenko, Y.Yamamoto, K.M.Itoh
    • Journal Title

      Phys. Rev. B 68

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Host Isotope Effect on the Localized Vibrational Modes of Oxygen in Isotopically Enriched 28Si, 29Si and 30Si Single Crystals2003

    • Author(s)
      J.Kato, K.M.Itoh, H.Yamda-Kaneta, H.-J.Pohl
    • Journal Title

      Phys. Rev. B 68

      Pages: 35205-35205

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Solid-State silicon NMR quantum computer2003

    • Author(s)
      E.Abe, K.M.Itoh, T.D.Ladd, J.R.Goldman, F.Yamaguchi, Y.Yamamoto
    • Journal Title

      Journal of Superconductivity 16(1)

      Pages: 175-178

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] A Raman Scattering Study of Self-Assembled Pure Isotope Ge/Si(100) Quantum Dots2002

    • Author(s)
      A.V.Kolobov, K.Morita, K.M.Itoh, E.E.Haller
    • Journal Title

      Appl. Phys. Lett. 81

      Pages: 3855-3857

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] An All Silicon Quantum Computer2002

    • Author(s)
      T.D.Ladd, J.R.Goldman, F.Yamaguchi, Y.Yamamoto, E.Abe, K.M.Itoh
    • Journal Title

      Phys. Rev. Lett. 80

      Pages: 17901-1

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Raman Spectra of ^<70>Ge/^<76>Ge Isotope Heterostructures with Argon 488nm and 514.5nm Excitations2002

    • Author(s)
      K.Morita, K.M.Itoh, M.Nakajima, H.Harima, K.Mizoguchi 他
    • Journal Title

      Physica B 316-317

      Pages: 561-564

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] A Raman Scattering Study of Self-Assembled Pure Isotope Ge/Si(100) Quantum Dots2002

    • Author(s)
      A.V.Kolobov, K.Morita, K: M.Itoh, E.E.Haller
    • Journal Title

      Appl. Phys. Lett. 81-20

      Pages: 3855-3857

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] An All Silicon Quantum Computer2002

    • Author(s)
      T.D.Ladd, J.R.Goldman, F.Yamaguchi, Y.Yamamoto, E.Abe, K.M.Itoh
    • Journal Title

      Phys. Rev. Lett. 89

      Pages: 17901-1

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Raman Spectra of70Ge/76Ge Isotope Heterostructures with Argon 488nm and 514.5nm Excitations2002

    • Author(s)
      K.Morita, K.M.Itoh, M.Nakajima, H.Harima, K.Mizoguchi, Y Shiraki, E.E.Haller
    • Journal Title

      Physica B 316-317

      Pages: 561-564

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Journal Article] Observation of the Random-Correlated Transition of Ionized Impurity Distribution in Compensate Semiconductors2002

    • Author(s)
      J.Kato, K.M.Itoh, E.E.Haller
    • Journal Title

      Phys. Rev. B 64

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2005 Final Research Report Summary
  • [Publications] T.Kojima, K.M.Itoh, Y.Shiraki: "Growth and Characterization of ^<28>Si_n/^<30>Si_n Isotope Superlattices"Appl.Phys.Lett.. 83. 2318-2320 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.M.Itoh, J.Kato, F.Uemura, A.K.Kaliteyevskii, 他: "High Purity Isotopically Enriched ^<29>Si and ^<30>Si Single Crystals : Isotope Separation, Purification, and Growth"Jpn.J.Appl.Phys.Pt.1. 42. 6248-6251 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] J.Kato, K.M.Itoh, H.Yamda-Kaneta, H.-J.Pohl: "Host Isotope Effect on the Localized Vibrational Modes of Oxygen in Isotopically Enriched ^<28>Si, ^<29>Si and ^<30>Si Single Crystals"Phys.Rev.B. 68. 035205 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] S.Fukatsu, T.Takahashi, K.M.Itoh, M.Uematsu, 他: "The Effect of Partial Pressure of Oxygen on Self-Diffusion on Si in SiO_2"Jpn.J.Appl.Phy.. 42. 1492-1494 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] S.Fukatsu, T.Takahashi, K.M.Itoh, M.Uematsu, 他: "Effect of the Si/SiO_2 Interface on Self-diffusion of Si in Semiconductor-grade SiO_2"Appl.Phy.Lett.. 83. 3897-3899 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] A.S.Verhulst, D.Maryenko, Y.Yamamoto, K.M.Itoh: "Double and Single Peaks in Nuclear Magnetic Resonance Spectra of Natural and 29Si Enriched Single Crystal Silicon"Phys.Rev.B. 68. 054105(1)-054105(6) (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] T.Graf, T.Ishikawa, K.M.Itoh, E.E.Haller, M.Stutzmann, M.S.Brandt: "Hyperfine Interactions at Dangling Bonds in Amorphous Germanium"Phys.Rev.B. 68. 205208 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] K.Tanigaki, T.Shimizu, K.M.Itoh, J.Teraoka, Y.Moritomo, S.Yamanaka: "Mechanism of superconductivity in the polyhedral-network compound Ba_8Si_<46>"Nature Materials. 2. 653-655 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] A.V.Kolobov, K.Morita, K.M.Itoh, E.E.Haller: "A Raman Scattering Study of Self-Assembled Pure Isotope Ge/Si(100) Quantum Dots"Appl. Phys. Lett.. 81・20. 3855-3857 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.M.Itoh, M.Watanabe, Y.Ootuka, E.E.Haller: "Comparison of the Effects of the Doping-Compensation and Magnetic-Field on the Metal-Insulator Transition of Ge : Ga"J. Phys. Soc. Jpn. Suppl.. (印刷中).

    • Related Report
      2002 Annual Research Report
  • [Publications] J.Kato, K.M.Itoh: "Far-Infrared Spectroscopy of Coulomb Gap in Compensated Semiconduntors"J. Phys. Soc. Jpn. Suppl.. (印刷中).

    • Related Report
      2002 Annual Research Report
  • [Publications] 伊藤公平, 渡部道生, 大塚洋一: "半導体中の電子はどのように遍歴化するか?:モット・アンダーソン転移の臨界指数"日本物理学会誌. 57・11. 813-821 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] T.D.Ladd, J.R.Goldman, F.Yamaguchi, Y.Yamamoto, E.Abe, K.M.Itoh: "An All Silicon Quantum Computer"Phys. Rev. Lett.. 89. 017901-1 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] K.Morita, K.M.Itoh, M.Nakajima, H.Harima, K.Mizoguchi, Y.Shiraki, E.E.Haller: "Raman Spectra of ^<70>Ge/^<76>Ge Isotope Heterostructures with Argon 488nm and 514.5nm Excitations"Physica B. 316-317. 561-564 (2002)

    • Related Report
      2002 Annual Research Report

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Published: 2002-04-01   Modified: 2018-03-28  

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