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Study of the coherent quantum fluctuations competed with formation of the long-range ferroelectric order

Research Project

Project/Area Number 17104004
Research Category

Grant-in-Aid for Scientific Research (S)

Allocation TypeSingle-year Grants
Research Field Condensed matter physics I
Research InstitutionHokkaido University

Principal Investigator

TOSHIROU Yagi  Hokkaido University, 名誉教授 (30002132)

Co-Investigator(Kenkyū-buntansha) TAKESADA Masaki  北海道大学, 大学院・理学研究科, 講師 (30311434)
ITOH Mitsuru  東京工業大学, 応用セラミックス研究所, 教授 (30151541)
TOKUNAGA Masaharu  北海道大学, 名誉教授 (60001682)
ONODERA Ajira  北海道大学, 大学院・理学研究科, 教授 (40142682)
Project Period (FY) 2005 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥99,190,000 (Direct Cost: ¥76,300,000、Indirect Cost: ¥22,890,000)
Fiscal Year 2009: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000)
Fiscal Year 2008: ¥14,040,000 (Direct Cost: ¥10,800,000、Indirect Cost: ¥3,240,000)
Fiscal Year 2007: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
Fiscal Year 2006: ¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000)
Fiscal Year 2005: ¥51,090,000 (Direct Cost: ¥39,300,000、Indirect Cost: ¥11,790,000)
Keywords量子常誘電体 / 量子ゆらぎ / ソフトモード / 極低温光散乱分光 / 時間-振動数結合広帯域分光法 / ミリケルビン領域 / 同位元素置換相転移 / 8)ERECクライオスタット / 量子強誘電体 / 時間-振動数領域広帯域分光法 / フォノン / 完全ソフト化 / 広帯域分光法 / ブルリアン散乱 / ブリルアン散乱
Research Abstract

For the observation of the dynamical property of the quantum fluctuations, utilizing a newly designed optical cryostat available with intensive incident radiation at ultra-low temperature, we have established an ultra-low temperature spectroscopic system of a wide dynamic range over 0~10^<11-12> Hz by combination of the time- and frequency domains. A theoretical investigation of the mass-effect on formation of the long-range ferroelectric order has been numerically given by the self-consistent phonon approximation.

Report

(6 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • 2007 Annual Research Report
  • 2006 Annual Research Report
  • 2005 Annual Research Report
  • Research Products

    (48 results)

All 2010 2009 2008 2007 2006 2005

All Journal Article (30 results) (of which Peer Reviewed: 9 results) Presentation (15 results) Book (2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Isotope-Induced Ferroelectric Phase Transition in Strontium Titanate Only by a Decrease in Zero-Point Vibration Frequency2010

    • Author(s)
      M. Tokunaga, Y. Aikawa
    • Journal Title

      J. Phys. Soc. Jpn. Vol.79

    • NAID

      40016969886

    • Related Report
      2009 Final Research Report
  • [Journal Article] Isotope-Induced Ferroelectric Phase Transition in Strontium Titanate Only by a Decrease in Zero-Point Vibration Frequency2010

    • Author(s)
      M.Tokunaga, Y.Aikawa
    • Journal Title

      J.Phys.Soc.Jpn. 79

    • NAID

      40016969886

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Soft-mode Dynamics in the Ferro-electric Phase Transition of Quantum Paraelectric SrTiO32009

    • Author(s)
      T. Yagi, M. Takesada, H. Taniguchi, M. Itoh
    • Journal Title

      Ferroelectrics Vol.379

      Pages: 168-176

    • Related Report
      2009 Final Research Report
  • [Journal Article] Theoretical Investigation of the Isotope-induced Ferroelectric Phase Transition in Quantum Paraelectric Strontium Titanate2009

    • Author(s)
      M. Tokunaga, Y. Aikawa
    • Journal Title

      Ferroelectrics 378

      Pages: 8-11

    • Related Report
      2009 Final Research Report
  • [Journal Article] Ferroelectricity Triggered in the Quantum Paraelectric AgTaO3 by Li-substitution2009

    • Author(s)
      H.P. Soon, H. Taniguchi, M. Itoh
    • Journal Title

      Appl. Phys. Lett. Vol.95

      Pages: 2429041-3

    • Related Report
      2009 Final Research Report
  • [Journal Article] Ultraviolet Photoexcited Soft Mode Dynamics in Quantum Paraelectrics KTaO3 Doped with Nickel2009

    • Author(s)
      M. Takesada, H. Nihonmatsu, T. Yagi, A. Onodera, Y. Akishige
    • Journal Title

      Jpn. J. Appl. Phys 48(Part2Sp.Iss.)

    • Related Report
      2009 Final Research Report
  • [Journal Article] Relaxor Pb(Mg1/3Nb2/3)O3: A Ferroelectric with Multiple Inhomogeneities2009

    • Author(s)
      D. Fu, H. Taniguchi, M. Itoh, S. Koshihara, N. Yamamoto, S. Mori
    • Journal Title

      Phys. Rev. Lett. Vol.103

      Pages: 2076011-4

    • Related Report
      2009 Final Research Report
  • [Journal Article] Soft-mode Dynamics in the Ferroelectric Phase Transition of Quantum Paraelectric SrTiO_32009

    • Author(s)
      T.Yagi, M.Takesada, H.Taniguchi, M.Itoh
    • Journal Title

      Ferroelectrics 379

      Pages: 168-176

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Theoretical Investigation of the Isotope-Induced Ferroelectric Phase Transition in Quantum Paraelectric Strontium Titanate2009

    • Author(s)
      M.Tokunaga, Y.Aikawa
    • Journal Title

      Ferroelectrics 379

      Pages: 119-127

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Soft-mode Dynamics in the Ferroelectric Phase Transition of Quantum Paraelectric SrTiO_32009

    • Author(s)
      T. Yagi
    • Journal Title

      Ferroelectrics 379

      Pages: 1-9

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamics of the Ferroelectric Phase Transition in 18O-exchanged SrTiO3 Studied by Raman Scattering2008

    • Author(s)
      H. Taniguchi, T. Yagi, M. Itoh
    • Journal Title

      Ferroelectrics 369

      Pages: 3-9

    • Related Report
      2009 Final Research Report
  • [Journal Article] Dynamics of the Ferroelectric Phase Transition in ^<18>O-exchanged SrTiO_3 Studied by Raman Scattering2008

    • Author(s)
      H. Taniguchi
    • Journal Title

      Ferroelectrics 369

      Pages: 3-9

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Successive Crystallization of Ferroelectric-based BaTi_2O_5 Bulk Glass Studied by Raman Scattering2008

    • Author(s)
      H. Taniguchi
    • Journal Title

      Mat. Sci. & Eng. B (2008) 148

      Pages: 48-52

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Critical Soft-Mode Dynamics and Unusual Anti-crossing in CdTiO3 Studied by Raman Scattering2007

    • Author(s)
      H. Taniguchi, Y.J. Shan, H. Mori, M. Itoh
    • Journal Title

      Phys. Rev. B Vol.76

      Pages: 2121031-4

    • Related Report
      2009 Final Research Report
  • [Journal Article] Ideal Soft Mode-Type Quantum Phase Transition and Phase Coexistence at Quantum Critical Point in 18O-Exchanged SrTiO32007

    • Author(s)
      H. Taniguchi, M. Itoh, T. Yagi
    • Journal Title

      Phys. Rev. Lett. Vol.99

      Pages: 0176021-4

    • Related Report
      2009 Final Research Report
  • [Journal Article] Light Scattering Study of the Phase Transition in Quantum Paraelectric Strontium Titanate2007

    • Author(s)
      T. Yagi
    • Journal Title

      J. Korean Phys. Soc. 51

      Pages: 798-803

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ideal Soft Mode Type Quantum Phase Transition and Coexistence at Quantum Critical Point in 18O-exchanged SrTiO_32007

    • Author(s)
      H. Taniguchi
    • Journal Title

      Phys. Rev. Lett. 99

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Recent Topics on the Light Scattering Study of Ferroelectrics2007

    • Author(s)
      T. Yagi
    • Journal Title

      Ferroelectrics 355

      Pages: 3-12

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Perfect Softening of the Ferroelectric Mode in the Isotope-Exchanged Strontium Titanate of SrTi^<18>O_3 Studied by Light Scattering2006

    • Author(s)
      M.Takesada
    • Journal Title

      Phys.Rev.Lett. 96

      Pages: 2276021-2276021

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Anomaly of Acoustic Phonon Mode in Ferroelectric Phase Transition of SrTi^<18>O_32006

    • Author(s)
      M.Takesada
    • Journal Title

      Ferroelectrics 337

      Pages: 1333-1333

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Precursory Softening of Polar Mode in Isotope-Exchanged Paraelectric Strontium Titanate Studied by Raman Scattering2006

    • Author(s)
      H.Taniguchi
    • Journal Title

      Ferroelectrics 337

      Pages: 131-131

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Raman Scattering Study of Superionic Conductor Lithium Tetraborate Li_2B_4O_72006

    • Author(s)
      T.Dekola
    • Journal Title

      Jpn.J.Appl.Phys. 45

      Pages: 152-152

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Solid-State Anti-Stokes Raman Shifter Covering Extremely Broadband Tunable Range2006

    • Author(s)
      J.Takahashi
    • Journal Title

      Jpn.J.Appl.Phys. 45

      Pages: 5084-5084

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Raman lasing and cascaded coherent anti-Stokes Raman scattering of a two-phonon Raman band2006

    • Author(s)
      J.Takahashi
    • Journal Title

      Opt.Lett. 32

      Pages: 1-1

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Dynamic Property of the Initial Process in the Dielectric Relaxation Phenomenon2006

    • Author(s)
      J.Kano
    • Journal Title

      FERROELECTRICS (in press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Raman Scattering Study of Superionic Conductor Lithium Tetraborate Li_2B_4O_72006

    • Author(s)
      T.Dekola
    • Journal Title

      Jpn.J.Appl.Phys 45・1A

      Pages: 152-152

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Raman Lasing and Multistep Coherent Anti-Stokes Raman Scattering of Two-Phonon Raman Band2006

    • Author(s)
      J.Takahashi
    • Journal Title

      Optics Letters (in press)

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Isotope Effect on the Soft-Mode Dynamics of SrTiO_3 Studied by Raman Scattering2005

    • Author(s)
      H.Taniguchi
    • Journal Title

      Phys.Rev.B 72

      Pages: 64111-64111

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Growth of Ferroelectric Micro-Regions in SrTiO_3 and SrTi(^<18>O_<0:23>^<16>O_<0:77>)_3 Studied by Raman Scattering2005

    • Author(s)
      H.Taniguchi
    • Journal Title

      J.Korean Phys.Soc. 46

      Pages: 93-93

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Precursory Softening of Polar Mode in Isotope-Exchanged Paraelectric Strontium Titanate Studied by Raman Scattering2005

    • Author(s)
      H.Taniguchi
    • Journal Title

      FERROELECTRICS (in press)

    • Related Report
      2005 Annual Research Report
  • [Presentation] 極低温におけるSrTiO_3の光散乱スペクトルII2010

    • Author(s)
      八木駿郎、武貞正樹
    • Organizer
      日本物理学会第65回年次大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-21
    • Related Report
      2009 Annual Research Report
  • [Presentation] 極低温におけるSrTiO3の光散乱スペクトルII2010

    • Author(s)
      八木駿郎, 武貞正樹
    • Organizer
      日本物理学会第65回年次大会
    • Place of Presentation
      岡山大学
    • Related Report
      2009 Final Research Report
  • [Presentation] CdTiO3のソフトモードの第一原理計算2010

    • Author(s)
      森分博紀, 谷口博基, 伊藤満
    • Organizer
      日本物理学会第65回年次大会
    • Place of Presentation
      岡山大学
    • Related Report
      2009 Final Research Report
  • [Presentation] 極低温におけるSrTiO_3の光散乱スペクトル2009

    • Author(s)
      八木駿郎
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      熊本大学
    • Year and Date
      2009-09-27
    • Related Report
      2009 Annual Research Report
  • [Presentation] 極低温におけるSrTiO3の光散乱スペクトル2009

    • Author(s)
      八木駿郎
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      熊本大学
    • Related Report
      2009 Final Research Report
  • [Presentation] 変位型強誘電体での新たなRhodes-Wohlfarth比2009

    • Author(s)
      徳永正晴
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      熊本大学
    • Related Report
      2009 Final Research Report
  • [Presentation] Oxygen-isotope Exchange Effect in Ferroelectric Oxides2009

    • Author(s)
      M. Itoh
    • Organizer
      The 26th International Japan-Korea Seminar on Ceramics
    • Place of Presentation
      Tsukuba, Japan
    • Related Report
      2009 Final Research Report
  • [Presentation] ペロブスカイト型化合物の構造と物性2009

    • Author(s)
      伊藤満
    • Organizer
      日本セラミックス協会第22回秋季シンポジウム
    • Place of Presentation
      愛媛大学
    • Related Report
      2009 Final Research Report
  • [Presentation] ホモエピタキシャルSTO18薄膜の構造相転移2009

    • Author(s)
      藤井康裕, 谷口博基, 伊藤満, 片山正士, 松本祐司
    • Organizer
      日本物理学会第64回年次大会
    • Place of Presentation
      立教大学
    • Related Report
      2009 Final Research Report
  • [Presentation] Theoretical Investigation of the Isotope-induced Ferroelectric Phase Transition in Quantum Paraelectric Strontium Titanate2008

    • Author(s)
      M. Tokunaga
    • Organizer
      The 9-th Russia / CIS / Baltic / Japan Symposium on Ferroelectricity
    • Place of Presentation
      Vilnius University (Lithuania)
    • Year and Date
      2008-06-16
    • Related Report
      2008 Annual Research Report
  • [Presentation] Light Scattering Study on Low-Temperature Soft-Mode-Type Phase Transitions2008

    • Author(s)
      H. Taniguchi, M. Itoh
    • Organizer
      9th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity (RCBJSF-9)
    • Place of Presentation
      Vilnius, Lithuania
    • Related Report
      2009 Final Research Report
  • [Presentation] Theoretical Investigation of the Isotope-induced Ferroelectric Phase Transition in Quantum Paraelectric Strontium Titanate2008

    • Author(s)
      M. Tokunaga, Y. Aikawa
    • Organizer
      9th Russia/CIS/Baltic/Japan Symposium on Ferroelectricity (RCBJSF-9)
    • Place of Presentation
      Vilnius, Lithuania
    • Related Report
      2009 Final Research Report
  • [Presentation] Acoustic Anomary and Perfect Softening of Ferroelectric Mode in SrTi_18O_32007

    • Author(s)
      M. Takesada
    • Organizer
      11_th European Meeting on Ferroelectricity(EMF-2007)
    • Place of Presentation
      Bled(Slovenia)
    • Year and Date
      2007-06-04
    • Related Report
      2007 Annual Research Report
  • [Presentation] Ferroelectricity in Perovskite-Related Oxides2007

    • Author(s)
      M. Itoh
    • Organizer
      1th European Meeting on Ferroelectricity (EMF-2007)
    • Place of Presentation
      Bled, Slovenia
    • Related Report
      2009 Final Research Report
  • [Presentation] Soft Mode Dynamics in Quantum Ferroelectric 18O-exchanged SrTiO3 Studied by Raman Scattering2007

    • Author(s)
      H. Taniguchi, T. Yagi, M. Itoh
    • Organizer
      2007 Workshop on Fundamental Physics of Ferroelectrics
    • Place of Presentation
      Williamsburg, Virginia, USA
    • Related Report
      2009 Final Research Report
  • [Book] Landolt-Bornstein, Numerical Data and Functional Relationships in Science and Technology, New Series, GroupIII : Condensed Matter, Vol.36Ferroelectrics and Related Substances (Edt. Y.Shiozaki, E.Nakamura and T.Mitsui), C : Organic crystals, liquid crystals and polymers2006

    • Author(s)
      八木駿郎, 他18名
    • Total Pages
      600
    • Publisher
      Springer
    • Related Report
      2006 Annual Research Report
  • [Book] Landolt-Bornstein Numerical Data and Functional Relationships in Science and Technology, New Series, Group III : Condensed Matter, Vol.36 Ferroelectrics and Related Substances, B2 : Inorganic substances other than oxides : (NH4)2SO4 family....K_3BiC_<16>KCIFH_3F_4)(Edt.Y.Shiozaki, E.Nakamura, T.Mitsui)2005

    • Author(s)
      T.Yagi
    • Total Pages
      550
    • Publisher
      Springer
    • Related Report
      2005 Annual Research Report
  • [Patent(Industrial Property Rights)] 固体ラマンシフター2006

    • Inventor(s)
      高橋淳一
    • Industrial Property Rights Holder
      高橋淳一
    • Industrial Property Number
      2006-037584
    • Filing Date
      2006-02-15
    • Related Report
      2006 Annual Research Report

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Published: 2005-04-01   Modified: 2020-05-15  

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