Piezomodulated-reflectivity study of GaAs/Al0.29Ga0.71As single quantum well

Chong Wang; Ping Ping Chen; Xu Chang Zhou; Chang Sheng Xia; Shao Wei Wang; Xiao Shuang Chen; Wei Lu

doi:10.7498/aps.54.3337

Piezomodulated-reflectivity study of GaAs/Al_0.29Ga_0.71As single quantum well

Chong Wang, Ping Ping Chen, Xu Chang Zhou, Chang Sheng Xia, Shao Wei Wang, Xiao Shuang Chen, Wei Lu

CAS - Shanghai Institute of Technical Physics

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

We report here that we have built a set of piezomodulated-reflectivity measurement system, and obtained piezomodulated-reflectivity spectra of two GaAs/Al_0.29GA_0.71 As single quantum well samples in which the well widths are 5 and 25 nm respectively. From these spectra, the transitions between electron and heavy and light hole subbands can be easily identified. Furthermore, we have observed the optical transition related to spin-orbit split-off of GaAs buffer. Effective mass theory is applied to calculate the transition energy between electron and hole subbands. Then the spectral structures are assigned based on the calculated results. It is found that these calculated results agree with experimental ones very well.

Original language	English
Pages (from-to)	3337-3341
Number of pages	5
Journal	Wuli Xuebao/Acta Physica Sinica
Volume	54
Issue number	7
DOIs	https://doi.org/10.7498/aps.54.3337
State	Published - Jul 2005
Externally published	Yes

Keywords

Molecular beam epitaxy
Piezomodulated-reflectivity spectra
Single quantum well

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title = "Piezomodulated-reflectivity study of GaAs/Al0.29Ga0.71As single quantum well",

abstract = "We report here that we have built a set of piezomodulated-reflectivity measurement system, and obtained piezomodulated-reflectivity spectra of two GaAs/Al0.29GA0.71 As single quantum well samples in which the well widths are 5 and 25 nm respectively. From these spectra, the transitions between electron and heavy and light hole subbands can be easily identified. Furthermore, we have observed the optical transition related to spin-orbit split-off of GaAs buffer. Effective mass theory is applied to calculate the transition energy between electron and hole subbands. Then the spectral structures are assigned based on the calculated results. It is found that these calculated results agree with experimental ones very well.",

keywords = "Molecular beam epitaxy, Piezomodulated-reflectivity spectra, Single quantum well",

author = "Chong Wang and Chen, \{Ping Ping\} and Zhou, \{Xu Chang\} and Xia, \{Chang Sheng\} and Wang, \{Shao Wei\} and Chen, \{Xiao Shuang\} and Wei Lu",

year = "2005",

month = jul,

doi = "10.7498/aps.54.3337",

language = "英语",

volume = "54",

pages = "3337--3341",

journal = "Wuli Xuebao/Acta Physica Sinica",

issn = "1000-3290",

publisher = "Institute of Physics, Chinese Academy of Sciences",

number = "7",

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TY - JOUR

T1 - Piezomodulated-reflectivity study of GaAs/Al0.29Ga0.71As single quantum well

AU - Wang, Chong

AU - Chen, Ping Ping

AU - Zhou, Xu Chang

AU - Xia, Chang Sheng

AU - Wang, Shao Wei

AU - Chen, Xiao Shuang

AU - Lu, Wei

PY - 2005/7

Y1 - 2005/7

N2 - We report here that we have built a set of piezomodulated-reflectivity measurement system, and obtained piezomodulated-reflectivity spectra of two GaAs/Al0.29GA0.71 As single quantum well samples in which the well widths are 5 and 25 nm respectively. From these spectra, the transitions between electron and heavy and light hole subbands can be easily identified. Furthermore, we have observed the optical transition related to spin-orbit split-off of GaAs buffer. Effective mass theory is applied to calculate the transition energy between electron and hole subbands. Then the spectral structures are assigned based on the calculated results. It is found that these calculated results agree with experimental ones very well.

AB - We report here that we have built a set of piezomodulated-reflectivity measurement system, and obtained piezomodulated-reflectivity spectra of two GaAs/Al0.29GA0.71 As single quantum well samples in which the well widths are 5 and 25 nm respectively. From these spectra, the transitions between electron and heavy and light hole subbands can be easily identified. Furthermore, we have observed the optical transition related to spin-orbit split-off of GaAs buffer. Effective mass theory is applied to calculate the transition energy between electron and hole subbands. Then the spectral structures are assigned based on the calculated results. It is found that these calculated results agree with experimental ones very well.

KW - Molecular beam epitaxy

KW - Piezomodulated-reflectivity spectra

KW - Single quantum well

UR - https://www.scopus.com/pages/publications/21844467219

U2 - 10.7498/aps.54.3337

DO - 10.7498/aps.54.3337

M3 - 文章

AN - SCOPUS:21844467219

SN - 1000-3290

VL - 54

SP - 3337

EP - 3341

JO - Wuli Xuebao/Acta Physica Sinica

JF - Wuli Xuebao/Acta Physica Sinica

IS - 7

ER -

Piezomodulated-reflectivity study of GaAs/Al_0.29Ga_0.71As single quantum well

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Keywords

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