跳到主要导航 跳到搜索 跳到主要内容

Quantum and transport scattering times in modulation-doped Al xGa1-xN/GaN single quantum wells

  • Z. W. Zheng
  • , B. Shen*
  • , Z. J. Qiu
  • , Y. S. Gui
  • , N. Tang
  • , J. Liu
  • , D. J. Chen
  • , R. Zhang
  • , Y. Shi
  • , Y. D. Zheng
  • , S. L. Guo
  • , J. H. Chu
  • , K. Hoshino
  • , Y. Arakawa
  • *此作品的通讯作者

科研成果: 期刊稿件文章同行评审

摘要

Quantum and transport scattering times related to different subbands in modulation-doped Al0.22Ga0.78N/GaN single quantum wells (SQW) have been studied by magneto-transport measurements. The quantum scattering time related to the first and the second subbands is determined to be 0.078 ps and 0.088 ps, respectively, at 1.5 K. Results indicate that the scatterings from heterointerface and ionized donors at both side of GaN well are all important in limiting quantum scattering time. By using mobility spectrum technique the transport scattering time related to the first subband is determined to be 0.128 ps. Transport-to-quantum scattering time ratio in the first subband is 1.6. It is concluded the large angle scatterings play a very important role in limiting quantum scattering time in this SQW.

源语言英语
页(从-至)39-42
页数4
期刊Applied Physics A: Materials Science and Processing
80
1
DOI
出版状态已出版 - 1月 2005
已对外发布

指纹

探究 'Quantum and transport scattering times in modulation-doped Al xGa1-xN/GaN single quantum wells' 的科研主题。它们共同构成独一无二的指纹。

引用此