Investigation of filling factor in In0.53Ga0.47As/In0.52 Al0.48As quantum wells with two occupied subbands

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

Investigation of filling factor in In_0.53Ga_0.47As/In_0.52 Al_0.48As quantum wells with two occupied subbands

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

School of Physics and Electronic Science

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

Abstract

The magnetic field dependence of filling factors has been investigated on InP based In_0.53Ga_0.47As/In_0.52 Al_0.48As quantum well samples with two occupied subbands by means of magnetotransport measurements at the temperature of 1.5 K in a magnetic field range of 0 to 13 T. Under the condiction that Laundau-level broadening is larger than the spin splitting of each subband, filling factors are even when the splitting energy of two subbands is an integer multiple of the cyclotron energy, i. e. ΔE₂₁ = khw_c. If the splitting energy of two subbands is half of an odd interger multiple of the cyclotron erergy, i.e. ΔE₂₁ = (2k + 1) hw_c/2, the filling factor is odd.

Original language	English
Pages (from-to)	3818-3822
Number of pages	5
Journal	Wuli Xuebao/Acta Physica Sinica
Volume	57
Issue number	6
State	Published - 2008

Keywords

Filling factor
InGaAs/In AlAs quantum well
Magnetotransport measurement

Cite this

@article{7f472dca680b4310b8ab1ab6b4d28c6f,

title = "Investigation of filling factor in In0.53Ga0.47As/In0.52 Al0.48As quantum wells with two occupied subbands",

abstract = "The magnetic field dependence of filling factors has been investigated on InP based In0.53Ga0.47As/In0.52 Al0.48As quantum well samples with two occupied subbands by means of magnetotransport measurements at the temperature of 1.5 K in a magnetic field range of 0 to 13 T. Under the condiction that Laundau-level broadening is larger than the spin splitting of each subband, filling factors are even when the splitting energy of two subbands is an integer multiple of the cyclotron energy, i. e. ΔE21 = khwc. If the splitting energy of two subbands is half of an odd interger multiple of the cyclotron erergy, i.e. ΔE21 = (2k + 1) hwc/2, the filling factor is odd.",

keywords = "Filling factor, InGaAs/In AlAs quantum well, Magnetotransport measurement",

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

year = "2008",

language = "英语",

volume = "57",

pages = "3818--3822",

journal = "Wuli Xuebao/Acta Physica Sinica",

issn = "1000-3290",

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

number = "6",

}

TY - JOUR

T1 - Investigation of filling factor in In0.53Ga0.47As/In0.52 Al0.48As quantum wells with two occupied subbands

AU - Shang, Li Yan

AU - Lin, Tie

AU - Zhou, Wen Zheng

AU - Guo, Shao Ling

AU - Li, Dong Lin

AU - Gao, Hong Ling

AU - Cui, Li Jie

AU - Zeng, Yi Ping

AU - Chu, Jun Hao

PY - 2008

Y1 - 2008

N2 - The magnetic field dependence of filling factors has been investigated on InP based In0.53Ga0.47As/In0.52 Al0.48As quantum well samples with two occupied subbands by means of magnetotransport measurements at the temperature of 1.5 K in a magnetic field range of 0 to 13 T. Under the condiction that Laundau-level broadening is larger than the spin splitting of each subband, filling factors are even when the splitting energy of two subbands is an integer multiple of the cyclotron energy, i. e. ΔE21 = khwc. If the splitting energy of two subbands is half of an odd interger multiple of the cyclotron erergy, i.e. ΔE21 = (2k + 1) hwc/2, the filling factor is odd.

AB - The magnetic field dependence of filling factors has been investigated on InP based In0.53Ga0.47As/In0.52 Al0.48As quantum well samples with two occupied subbands by means of magnetotransport measurements at the temperature of 1.5 K in a magnetic field range of 0 to 13 T. Under the condiction that Laundau-level broadening is larger than the spin splitting of each subband, filling factors are even when the splitting energy of two subbands is an integer multiple of the cyclotron energy, i. e. ΔE21 = khwc. If the splitting energy of two subbands is half of an odd interger multiple of the cyclotron erergy, i.e. ΔE21 = (2k + 1) hwc/2, the filling factor is odd.

KW - Filling factor

KW - InGaAs/In AlAs quantum well

KW - Magnetotransport measurement

UR - https://www.scopus.com/pages/publications/46449097741

M3 - 文章

AN - SCOPUS:46449097741

SN - 1000-3290

VL - 57

SP - 3818

EP - 3822

JO - Wuli Xuebao/Acta Physica Sinica

JF - Wuli Xuebao/Acta Physica Sinica

IS - 6

ER -

Investigation of filling factor in In_0.53Ga_0.47As/In_0.52 Al_0.48As quantum wells with two occupied subbands

Abstract

Keywords

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