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Electrical properties of metamorphic in0.52Al 0.48As/In0.65Ga0.35As HEMT's on GaAs substrate

  • Z. J. Qiu*
  • , R. Liu
  • , S. L. Zhang
  • , Y. S. Gui
  • , L. J. Cui
  • , Y. P. Zeng
  • , J. H. Chu
  • *此作品的通讯作者
  • Fudan University
  • CAS - Shanghai Institute of Technical Physics
  • CAS - Institute of Semiconductors

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Variable magnetic field Hall measurements were performed to investigate the electrical properties in In0.52Al0.48As/In 0.65Ga0.35As metamorphic high electron mobility transistors (MMHEMT's) on GaAs substrate at the temperature range from 4 to 100 K. The Shubnikov-de Hass (SdH) measurement shows the two-dimensional electronic behavior and two-subband electron occupation in MMHEMT's. The electron densities and mobilities of the two subbands are obtained by fast Fourier transform analysis. Both the SdH oscillations and conventional Hall analysis are in good agreement in the determination of total electron density, which is about 2.1×1012 cm-2 due to incomplete transfer of the electrons. The temperature dependence of the electron mobility indicates that at low temperature alloy scattering dominates, whereas at high temperature, the mobility is mainly limited by optical phonon scattering.

源语言英语
主期刊名ICSICT-2006
主期刊副标题2006 8th International Conference on Solid-State and Integrated Circuit Technology, Proceedings
出版商IEEE Computer Society
875-877
页数3
ISBN(印刷版)1424401615, 9781424401611
DOI
出版状态已出版 - 2006
已对外发布
活动ICSICT-2006: 2006 8th International Conference on Solid-State and Integrated Circuit Technology - Shanghai, 中国
期限: 23 10月 200626 10月 2006

出版系列

姓名ICSICT-2006: 2006 8th International Conference on Solid-State and Integrated Circuit Technology, Proceedings

会议

会议ICSICT-2006: 2006 8th International Conference on Solid-State and Integrated Circuit Technology
国家/地区中国
Shanghai
时期23/10/0626/10/06

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