Positive magnetoresistance in In0.53Ga0.47As/ In0.52Al0.48As quantum weir

Li Yan Shang; Tie Lin; Wen Zheng Zhou; Dong Lin Li; Hong Ling Gao; Yi Ping Zeng; Shao Ling Guo; Guo Lin Yu; Jun Hao Chu

Positive magnetoresistance in In_0.53Ga_0.47As/ In_0.52Al_0.48As quantum weir

Li Yan Shang^*
, Tie Lin
, Wen Zheng Zhou
, Dong Lin Li
, Hong Ling Gao
, Yi Ping Zeng
, Shao Ling Guo
, Guo Lin Yu
, Jun Hao Chu

^*Corresponding author for this work

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

1 Scopus citations

Abstract

Magnetotransport measurements have been carried out on In_0.53Ga_0.47As/ In_0.52Al_0.48As quantum wells in a temperature range between 1.5 and 77 K. We have observed a large positive magnetoresistance in the low magnetic field range, but saturating in high magnetic fields. The magnetoresistance results from two occupied subbands in the two-dimensional electron gas. With the intersubband scattering considered, we obtained the subband mobility by analyzing the positive magnetoresistance. It is found that the second subband mobility is larger than that of the first due to the existence of the intersubband scattering.

Original language	English
Pages (from-to)	5232-5236
Number of pages	5
Journal	Wuli Xuebao/Acta Physica Sinica
Volume	57
Issue number	8
State	Published - Aug 2008
Externally published	Yes

Keywords

Intersubband scattering
Positive magnetoresistance
Two-dimensional electron gas

Cite this

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title = "Positive magnetoresistance in In0.53Ga0.47As/ In0.52Al0.48As quantum weir",

abstract = "Magnetotransport measurements have been carried out on In0.53Ga0.47As/ In0.52Al0.48As quantum wells in a temperature range between 1.5 and 77 K. We have observed a large positive magnetoresistance in the low magnetic field range, but saturating in high magnetic fields. The magnetoresistance results from two occupied subbands in the two-dimensional electron gas. With the intersubband scattering considered, we obtained the subband mobility by analyzing the positive magnetoresistance. It is found that the second subband mobility is larger than that of the first due to the existence of the intersubband scattering.",

keywords = "Intersubband scattering, Positive magnetoresistance, Two-dimensional electron gas",

author = "Shang, \{Li Yan\} and Tie Lin and Zhou, \{Wen Zheng\} and Li, \{Dong Lin\} and Gao, \{Hong Ling\} and Zeng, \{Yi Ping\} and Guo, \{Shao Ling\} and Yu, \{Guo Lin\} and Chu, \{Jun Hao\}",

year = "2008",

month = aug,

language = "英语",

volume = "57",

pages = "5232--5236",

journal = "Wuli Xuebao/Acta Physica Sinica",

issn = "1000-3290",

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

number = "8",

}

TY - JOUR

T1 - Positive magnetoresistance in In0.53Ga0.47As/ In0.52Al0.48As quantum weir

AU - Shang, Li Yan

AU - Lin, Tie

AU - Zhou, Wen Zheng

AU - Li, Dong Lin

AU - Gao, Hong Ling

AU - Zeng, Yi Ping

AU - Guo, Shao Ling

AU - Yu, Guo Lin

AU - Chu, Jun Hao

PY - 2008/8

Y1 - 2008/8

N2 - Magnetotransport measurements have been carried out on In0.53Ga0.47As/ In0.52Al0.48As quantum wells in a temperature range between 1.5 and 77 K. We have observed a large positive magnetoresistance in the low magnetic field range, but saturating in high magnetic fields. The magnetoresistance results from two occupied subbands in the two-dimensional electron gas. With the intersubband scattering considered, we obtained the subband mobility by analyzing the positive magnetoresistance. It is found that the second subband mobility is larger than that of the first due to the existence of the intersubband scattering.

AB - Magnetotransport measurements have been carried out on In0.53Ga0.47As/ In0.52Al0.48As quantum wells in a temperature range between 1.5 and 77 K. We have observed a large positive magnetoresistance in the low magnetic field range, but saturating in high magnetic fields. The magnetoresistance results from two occupied subbands in the two-dimensional electron gas. With the intersubband scattering considered, we obtained the subband mobility by analyzing the positive magnetoresistance. It is found that the second subband mobility is larger than that of the first due to the existence of the intersubband scattering.

KW - Intersubband scattering

KW - Positive magnetoresistance

KW - Two-dimensional electron gas

UR - https://www.scopus.com/pages/publications/51649088718

M3 - 文章

AN - SCOPUS:51649088718

SN - 1000-3290

VL - 57

SP - 5232

EP - 5236

JO - Wuli Xuebao/Acta Physica Sinica

JF - Wuli Xuebao/Acta Physica Sinica

IS - 8

ER -

Positive magnetoresistance in In_0.53Ga_0.47As/ In_0.52Al_0.48As quantum weir

Abstract

Keywords

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