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Study on Resonant Tunneling via Wannier-Stark States

Research Project

Project/Area Number 10450122
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Electronic materials/Electric materials
Research InstitutionOsaka University

Principal Investigator

HAMAGUCHI Chihiro  Dep. of Electronic Engineering, Osaka University, Professor, 大学院・工学研究所, 教授 (40029004)

Co-Investigator(Kenkyū-buntansha) MOMOSE Hideki  Low Temperature center, Osaka University, Research Associate, 低温センター, 助手 (80260636)
MORIFUJI Masato  Dep. of Electronic Engineering, Osaka University, Research Associate, 大学院・工学研究所, 助手 (00230144)
MORI Nobuya  Dep. of Electronic Engineering, Osaka University, Associate Professor, 大学院・工学研究所, 助教授 (70239614)
Project Period (FY) 1998 – 1999
Project Status Completed (Fiscal Year 1999)
Budget Amount *help
¥8,500,000 (Direct Cost: ¥8,500,000)
Fiscal Year 1999: ¥4,600,000 (Direct Cost: ¥4,600,000)
Fiscal Year 1998: ¥3,900,000 (Direct Cost: ¥3,900,000)
KeywordsWannier-STark state / p-i-n diode / Zener current / resonant tunneling
Research Abstract

It has been pointed out that Zener current flowing a p-i-n diode can be modulated due to interaction between the Zener current and Wannier-Stark states, when the p-i-n diode has a superlattice in its intrinsic region. In order to investigate detail of the interaction, we carried out transport and optical measurements as well as energy band calculations. The sample we have used are p-i-n diodes which contains a 15periods of (GaAs)ィイD26ィエD2/(AlAs)ィイD26ィエD2 superlattice in the intrisic region. The derivative of conductance measured at 4.2 K exhibits a series of peaks. The optical measurements (electroreflectance method) have shown that the Wannier-Stark states are formed in the superlattice region. These results clearly indicates that the peaks in the derivative of conductance are due to the resonance between Zener current and Wannier-Stark states.
Furthermore, we carried out transport measurements under magnetic field. We have fond out that the peaks show shift due to the magnetic field. More studies are necessary to clarify the origin of the peak shift.

Report

(3 results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report
  • Research Products

    (16 results)

All Other

All Publications (16 results)

  • [Publications] M. Morifuji 他: "Incoherent Bloch Oscillation and Delocalization of Stark-ladders"Solid State Electronics. 42. 1505-1508 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Morifuji, C. Hamaguchi: "Stark-ladders in an Imperfect Crystal"Physical Review B. 58. 12842-12848 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Morifuji 他: "Complemental Theory for Vertical Transport"Sixth Int. Workshop on Computational Electronics. 13-16 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Morifuji 他: "Complemental Theory for Vertical Transport"Physics and Computer Modeling. 62-66 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Yamanaka 他: "Thermal Dissociation of Excitons in a Type-I Superlatticies…"Physica E. (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Morifuji, S. K. Wah, and C. Hamaguchi: "Incoherent Bloch Oscillation and Delocalization of Stark-ladders"Solid State Electron. 42. 1505--1508 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Morifuji and C. Hamaguchi: "Stark-ladders in an Imperfect Crystal"Phys. Rev.. B 58. 12842--12847 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Morifuji, A. Sakamoto, andC. Hamaguchi: "Complemental Theory for Vertical Transport"Physics and Modeling of Devices based on Low-Dimensional Structures. 62--66 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M. Yamanaka, H. Itoh, M. Morifuji, and C. Hamaguchi: "Thermal Dissociation of Excitons in a Type-I Superlatticies Studied by Time-Resolved Photoluminescence Measurements"Physica E. (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] M.Morifuji 他: "Incoherent Bloch Oscillation and Delocalization of Stark-ladders"Solid State Electronics. 42. 1505-1508 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Morifuji, C.Hamaguchi: "Stark-ladders in an Imperfect Crystal"Physical Review B. 58. 12842-12847 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Morifuji 他: "Complemental Theory for Vertical Transport"Sixth Int. Workshop on Computational Electronics. 13-16 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Morifuji 他: "Complemental Theory for Vertical Transport"Physics and Computer Modeling. 62-66 (1998)

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Yamanaka 他: "Thermal Dissociation of Excitons in a Type-I Superlatticies..."Physica E. (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] M.Morifuji他: "Incoherent Bloch Oscillation and Delocalization of Stark-ladders" Solid State Electronics. 42. 1505-1508 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] M.Morifuji, C.Hamaguchi: "Stark-ladders in an imperfect Crystal" Physical Review B. 58. 12842-12847 (1998)

    • Related Report
      1998 Annual Research Report

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Published: 1998-04-01   Modified: 2016-04-21  

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