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Metal-insulator transition in strongly correlated diluted electron systems of high-mobility zinc oxide two-dimensional interfaces

Metal-insulator transition in strongly correlated diluted electron systems of high-mobility zinc oxide two-dimensional interfaces
高迁移率氧化锌二维界面强相关稀电子系统中的金属-绝缘体转变
批准号:
22840004
负责人:
KOZUKA Yusuke
金额:
$2.0万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for Research Activity Start-up
财政年份:
2010
资助国家:
日本
项目状态:
已结题
起止时间:
2010 至 2011

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中文摘要
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英文摘要
Our aim is to observe a metal-insulator transition in two-dimensional electrons in zinc oxide by measuring electrical resistance. At ultralow temperature, by applying high magnetic field, we observed an abrupt increase in the electrical resistance, suggesting a metal-insulator transition. However, Hall resistance, which reflects carrier density, remains normal across the resistance increase. Thus, we found that a characteristic state in high-mobility diluted carrier systems is realized, which is called quantum Hall insulator
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Insulating phase of a two-dimensional electron gas in MgxZn1-xO/ZnO heterostructures below nu=(1/3)
nu=(1/3)以下MgxZn1-xO/ZnO异质结构中二维电子气的绝缘相
DOI: 10.1103/physrevb.84.033304
发表时间: 2011
期刊: Physical Review B
影响因子: 3.7
作者: [Y.Kozuka, A.Tsukazaki, D.Maryenko, J.Falson, S.Akasaka, K.Nakahara, S.Nakamura, A.Awaji, K.Ueno, M.Kawasaki]
通讯作者: M.Kawasaki
Temperature-dependent magnetotransport around v=1/2 in ZnO hetero structures
ZnO 异质结构中 v=1/2 附近温度依赖性磁输运
DOI: --
发表时间: 2012
期刊: Physical Review Letters
影响因子: 8.6
作者: [D.Maryenko, J.Falson, Y.Kozuka, A.Tsukazaki, M.Onoda, H.Aoki, M.Kawasaki]
通讯作者: M.Kawasaki
フォトルミネッセンスによるMgZnO薄膜の低Mg濃度の定量
通过光致发光定量 MgZnO 薄膜中的低 Mg 浓度
DOI: --
发表时间: 2012
期刊:
影响因子: --
作者: [J. Falson, D. Maryenko, Y. Kozuka, A. Tsukazaki, M. Kawasaki, Tsuyoshi Miezaki, 小塚裕介]
通讯作者: 小塚裕介
Enhancing Mobility of Two-Dimensional Electron Gas in ZnO/MgZnO Heterostructures
增强 ZnO/MgZnO 异质结构中二维电子气的迁移率
DOI: --
发表时间: 2010
期刊:
影响因子: --
作者: [Masaaki Harada, Tsuyoshi Miezaki, Y. Kozuka]
通讯作者: Y. Kozuka
9
    Designing spin-Hall effect based on even-odd parity hybridization of electron orbitals
    • 批准号:
      19H02604
    • 项目类别:
      Grant-in-Aid for Scientific Research (B)
    • 资助金额:
      $10.98万
    • 财政年份:
      2019
    • 负责人:
      KOZUKA Yusuke
    • 依托单位:
    海外基金