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Quantum Dot Single Hole Device based on Strained Germanium Two Dimensional Hole Gas

Research Project

Project/Area Number 25600079
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Applied materials
Research InstitutionTokyo City University

Principal Investigator

Sawano Kentarou  東京都市大学, 工学部, 教授 (90409376)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsゲルマニウム / 量子ドット / 歪みゲルマニウム / 2次元正孔ガス / 高移動度 / 歪みGe / 単正孔デバイス
Outline of Final Research Achievements

Since semiconductor integrated circuit technology has been approaching the scaling limit of devices, novel device structures with ultralow power consumption are required. In this research, we focus on Germanium (Ge) as a novel material, and with the aim of opening possibilities of Ge we developed technologies toward strained Ge single hole devices enabling spin control with very low power consumptions. Particularly, with utilizing technologies of high quality crystal growth and formation of gate insulators, a Ge channel two-dimensional-hole-gases were created on Si substrates, and we found that the top-gating was able to control the transport and spin properties, allowing in-plane local depletion of holes, which are highly important for realization of Ge dot devices.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (25 results)

All 2016 2015 2014 2013

All Journal Article (15 results) (of which Peer Reviewed: 15 results,  Acknowledgement Compliant: 8 results) Presentation (10 results) (of which Int'l Joint Research: 4 results,  Invited: 3 results)

  • [Journal Article] Compressively strained Si/Si1-xCx heterostructures formed on Ar ion implanted Si(100) substrates2016

    • Author(s)
      Yusuke Hoshi, You Arisawa, Keisuke Arimoto, Junji Yamanaka, Kiyokazu Nakagawa, Kentarou Sawano, and Noritaka Usami
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 55 Issue: 3 Pages: 031302-031302

    • DOI

      10.7567/jjap.55.031302

    • NAID

      210000146127

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Suppression of segregation of the phosphorus δ-doping layer in germanium by incorporation of carbon2016

    • Author(s)
      M. Yamada, K. Sawano, M. Uematsu, Y. Shimizu, K. Inoue, Y. Nagai, and K. M. Itoh
    • Journal Title

      Japanese Journal of Applied Physics

      Volume: 55 Issue: 3 Pages: 031304-031304

    • DOI

      10.7567/jjap.55.031304

    • NAID

      210000146129

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structural and electrical properties of Ge(111) films grown on Si(111) substrates and application to Ge(111)-on-Insulator2015

    • Author(s)
      K. Sawano, Y. Hoshi, S. Kubo, K. Arimoto, J. Yamanaka, K. Nakagawa, K. Hamaya, M. Miyao, Y. Shiraki
    • Journal Title

      Thin Solid Films

      Volume: 未定 Pages: 24-28

    • DOI

      10.1016/j.tsf.2015.11.020

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Ultralarge transient optical gain from tensile-strained, n-doped germanium on silicon by spin-on dopant diffusion2015

    • Author(s)
      Xuejun Xu, Xiaoxin Wang, Keisuke Nishida, Koki Takabayashi, Kentarou Sawano, Yasuhiro Shiraki, Haofeng Li, Jifeng Liu, and Takuya Maruizumi
    • Journal Title

      Applied Physics Express

      Volume: 8 Issue: 9 Pages: 092101-092101

    • DOI

      10.7567/apex.8.092101

    • NAID

      210000137638

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Suppression of surface segregation of the phosphorous δ-doping layer by insertion of an ultra-thin silicon layer for ultra-shallow Ohmic contacts on n-type germanium2015

    • Author(s)
      Michihiro Yamada, Kentarou Sawano, Masashi Uematsu and Kohei M. Itoh
    • Journal Title

      Appl. Phys. Lett.

      Volume: 107 Issue: 13 Pages: 132101-132101

    • DOI

      10.1063/1.4931939

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Uniaxially strained SiGe(111) and SiGe(100) grown on selectively ion-implanted substrates2014

    • Author(s)
      K. Sawano, Y. Hoshi, S. Kubo, S. Yamada, K. Nakagawa, Y. Shiraki
    • Journal Title

      Journal of Crystal Growth

      Volume: 401 Pages: 758-761

    • DOI

      10.1016/j.jcrysgro.2014.02.014

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Formation of Ge(111) on Insulator by Ge epitaxy on Si(111) and layer transfer2014

    • Author(s)
      K. Sawano, Y. Hoshi, S. Endo, T. Nagashima, K. Arimoto, J. Yamanaka, K. Nakagawa, S. Yamada, K. Hamaya, M. Miyao and Y. Shiraki
    • Journal Title

      Thin Solid Films

      Volume: 557 Pages: 76-79

    • DOI

      10.1016/j.tsf.2013.10.074

    • Related Report
      2014 Research-status Report 2013 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Highly n-doped, tensile-strained Ge grown on Si by molecular beam epitaxy2014

    • Author(s)
      Keisuke Nishida, Xuejun Xu, Kentarou Sawano, Takuya Maruizumi, Yasuhiro Shiraki
    • Journal Title

      Thin Solid Films

      Volume: 557 Pages: 66-69

    • DOI

      10.1016/j.tsf.2013.10.082

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Cubic Rashba Spin-Orbit Interaction of a Two-Dimensional Hole Gas in a Strained-Ge/SiGe Quantum Well2014

    • Author(s)
      Rai Moriya, Kentarou Sawano, Yusuke Hoshi, Satoru Masubuchi, Yasuhiro Shiraki, Andreas Wild, Christian Neumann, Gerhard Abstreiter, Dominique Bougeard, Takaaki Koga, and Tomoki Machida
    • Journal Title

      Physical Review Letters

      Volume: 113 Issue: 8 Pages: 086601-086601

    • DOI

      10.1103/physrevlett.113.086601

    • NAID

      120007044497

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] On the origin of the uniaxial strain induced in Si/Ge heterostructures with selective ion implantation technique2013

    • Author(s)
      K. Sawano
    • Journal Title

      Journal of Crystal Growth

      Volume: - Pages: 251-253

    • DOI

      10.1016/j.jcrysgro.2012.12.100

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Room-temperature sign reversed spin-accumulation signals in Si using an atomically smooth Fe_3Si/Si(111) interface2013

    • Author(s)
      Y. Fujita, S. Yamada. Y. Ando, K. Sawano, H. Itoh, M. Miyao, and K. Hamaya
    • Journal Title

      Journal of Applied Physics

      Volume: 113 Issue: 1

    • DOI

      10.1063/1.4773072

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] An ultra-thin buffer layer for Ge epitaxial layers on Si2013

    • Author(s)
      M. Kawano, S. Yamada. K. Tanikawa, K. Sawano, M. Miyao, and K. Hamaya
    • Journal Title

      Applied Physics Letters

      Volume: 102 Issue: 12

    • DOI

      10.1063/1.4798659

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Qualitative study of temperature-dependent spin signals in n-Ge-based lateral devices with Fe_3Si/n^+-Ge Schottky-tunnel contacts2013

    • Author(s)
      K. Hamaya, Y. Baba, G Takemoto, K. Kasahara, S. Yamada, K. Sawano, and M. Miyao
    • Journal Title

      Journal of Applied Physics

      Volume: 113 Issue: 18

    • DOI

      10.1063/1.4804320

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Gas-source MBE growth of strain-relaxed Si1-xCx on Si(100) substrates2013

    • Author(s)
      Keisuke Arimoto, Shoichiro Sakai, Hiroshi Furukawa, Junji Yamanaka, Kiyokazu Nakagawa, Noritaka Usami, Yusuke Hoshi, Kentarou Sawano, Yasuhiro Shiraki
    • Journal Title

      J. Cryst. Growth

      Volume: 378 Pages: 212-217

    • DOI

      10.1016/j.jcrysgro.2012.12.152

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Formation of compressively strained Si/Si1-xCx/Si(100) heterostructures using gas-source molecular beam epitaxy2013

    • Author(s)
      Keisuke Arimoto
    • Journal Title

      Journal of Crystal Growth

      Volume: 362 Pages: 276-281

    • DOI

      10.1016/j.jcrysgro.2011.12.084

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Presentation] Strained Germanium based Nano-Structures toward High Performance Optoelectronic Integrated Circuits2015

    • Author(s)
      Kentarou Sawano
    • Organizer
      International Symposium for Advanced Materials Research 2015
    • Place of Presentation
      Nantou, Taiwan
    • Year and Date
      2015-08-16
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Cubic Rashba Spin-Orbit Interaction of a Two-Dimensional Hole Gas in a Ge/SiGe Quantum Well2015

    • Author(s)
      Rai Moriya, Kentarou Sawano, Yusuke Hoshi, Satoru Masubuchi, Yasuhiro Shiraki, Takaaki Koga, and Tomoki Machida
    • Organizer
      21st International Conference on Electronic Properties of Two-Dimensional Systems (EP2DS-21)
    • Place of Presentation
      Sendai International Center, Miyagi
    • Year and Date
      2015-07-26
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Robust quantum dot devices for qubits in isotopically purified 28Si2015

    • Author(s)
      Christian Neumann, Johannes Kierig, Florian Forster, Andreas Wild, J. W. Ager, E. E. Haller, Gerhard Abstreiter, Kentarou Sawano, Stefan Ludwig, and Dominique Bougeard
    • Organizer
      21st International Conference on Electronic Properties of Two-Dimensional Systems (EP2DS-21)
    • Place of Presentation
      Sendai International Center, Miyagi
    • Year and Date
      2015-07-26
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fabrication of Strained Ge-on-Insulator for Ge-based Optoelectronic Devices2015

    • Author(s)
      K. Sawano, T. Nagashima, H. Hashimoto, X. Xu, K. Hamaya, and T. Maruizumi
    • Organizer
      E-MRS 2015 Spring Meeting
    • Place of Presentation
      Lille, France
    • Year and Date
      2015-05-11
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Anisotropic Strain Engineering in Si/Ge Heterostructures2014

    • Author(s)
      Kentarou Sawano
    • Organizer
      The Collaborative Conference on Crystal Growth (3CG 2014)
    • Place of Presentation
      Phuket, Thailand
    • Year and Date
      2014-11-04 – 2014-11-07
    • Related Report
      2014 Research-status Report
    • Invited
  • [Presentation] Electrical properties of strained Ge(111)-on-Insulator (GOI) fabricated by Ge epitaxy on Si and layer transfer2014

    • Author(s)
      Tomonori Nagashima, Hironori Katsumata, Kohei Hamaya, Masanobu Miyao, Yasuhiro Shiraki, Kentarou Sawano
    • Organizer
      7th International Silicon-Germanium Technology and Device Meeting, 2014 ISTDM
    • Place of Presentation
      Singapore
    • Year and Date
      2014-06-02 – 2014-06-04
    • Related Report
      2014 Research-status Report
  • [Presentation] Strain engineered Si/Ge heterostructures2013

    • Author(s)
      K. Sawano
    • Organizer
      The International Conference on Small Science (ICSS 2013)
    • Place of Presentation
      Las Vegas, USA
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] Uniaxially strained Si/Ge heterostructures grown on selectively ion-implanted substrates2013

    • Author(s)
      K. Sawano, Y. Shoji, N. Funabashi, E. Yonekura, K. Nakagawa, Y. Shiraki
    • Organizer
      17th International Conference on Crystal Growth and Epitaxy (ICCGE-17)
    • Place of Presentation
      Warsaw, Poland
    • Related Report
      2013 Research-status Report
  • [Presentation] Formation of Ge(111) on Insulator by Ge epitaxy on Si(111) and layer transfer2013

    • Author(s)
      K. Sawano, Y. Hoshi, S. Endo, H. Katsumata, T. Nagashima, K. Arimoto, J. Yamanaka, K. Nakagawa, K. Hamaya, M. Miyao and Y. Shiraki
    • Organizer
      The 8th Int. Conf. on Si Epitaxy and Heterostructures (ICSI-8)
    • Place of Presentation
      Fukuoka, Japan
    • Related Report
      2013 Research-status Report
  • [Presentation] Formation of Uniaxially Strained Ge by Selective Ion Implantation2013

    • Author(s)
      K. Sawano, Y. Shoji, E. Yonekura, K. Nakagawa, and Y. Shiraki
    • Organizer
      E-MRS 2013 Spring Meeting
    • Place of Presentation
      Strasbourg, France
    • Related Report
      2013 Research-status Report

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Published: 2014-07-25   Modified: 2019-07-29  

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