Saturation spectroscopy of electronic states in a magnetic field in InAs/AlxGa1-xSb single quantum wells

S. K. Singh; B. D. McCombe; J. Kono; S. J. Allen; I. Lo; W. C. Mitchel; C. E. Stutz

doi:10.1016/S1386-9477(98)00044-7

Saturation spectroscopy of electronic states in a magnetic field in InAs/Al_xGa_1-xSb single quantum wells

S. K. Singh
, B. D. McCombe
, J. Kono
, S. J. Allen
, I. Lo
, W. C. Mitchel
, C. E. Stutz

Physics

SUNY Buffalo
University of California at Santa Barbara
National Sun Yat-sen University
Air Force Research Laboratory

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

1 Scopus citations

Abstract

We have carried out saturation spectroscopy of cyclotron resonance in a semiconducting InAs/Al_0.5Ga_0.5Sb single quantum well using the UCSB free electron laser and have extracted an effective Landau level lifetime using an n-level rate equation model. The effective lifetime shows strong oscillations (> an order of magnitude) with frequency. Minima are shifted to higher frequencies than those given by the simple parabolic magnetophonon resonance condition due to large nonparabolicity in the InAs conduction band. We have also used this technique to investigate the origins of two lines: the X-line and cyclotron resonance in a "semimetallic" InAs/Al_0.1Ga_0.9Sb single quantum-well structure. Results show that the two lines are of different origin.

Original language	English
Pages (from-to)	204-208
Number of pages	5
Journal	Physica E: Low-Dimensional Systems and Nanostructures
Volume	2
Issue number	1-4
DOIs	https://doi.org/10.1016/S1386-9477(98)00044-7
State	Published - Jul 15 1998

Keywords

Landau level lifetime
Magnetophonon resonance
Nonparabolicity
Saturation

Access to Document

10.1016/S1386-9477(98)00044-7

Cite this

@article{11e41841d8d04f05823a0df90c7f0454,

title = "Saturation spectroscopy of electronic states in a magnetic field in InAs/AlxGa1-xSb single quantum wells",

abstract = "We have carried out saturation spectroscopy of cyclotron resonance in a semiconducting InAs/Al0.5Ga0.5Sb single quantum well using the UCSB free electron laser and have extracted an effective Landau level lifetime using an n-level rate equation model. The effective lifetime shows strong oscillations (> an order of magnitude) with frequency. Minima are shifted to higher frequencies than those given by the simple parabolic magnetophonon resonance condition due to large nonparabolicity in the InAs conduction band. We have also used this technique to investigate the origins of two lines: the X-line and cyclotron resonance in a {"}semimetallic{"} InAs/Al0.1Ga0.9Sb single quantum-well structure. Results show that the two lines are of different origin.",

keywords = "Landau level lifetime, Magnetophonon resonance, Nonparabolicity, Saturation",

author = "Singh, \{S. K.\} and McCombe, \{B. D.\} and J. Kono and Allen, \{S. J.\} and I. Lo and Mitchel, \{W. C.\} and Stutz, \{C. E.\}",

year = "1998",

month = jul,

day = "15",

doi = "10.1016/S1386-9477(98)00044-7",

language = "English",

volume = "2",

pages = "204--208",

journal = "Physica E: Low-Dimensional Systems and Nanostructures",

issn = "1386-9477",

publisher = "Elsevier B.V.",

number = "1-4",

}

TY - JOUR

T1 - Saturation spectroscopy of electronic states in a magnetic field in InAs/AlxGa1-xSb single quantum wells

AU - Singh, S. K.

AU - McCombe, B. D.

AU - Kono, J.

AU - Allen, S. J.

AU - Lo, I.

AU - Mitchel, W. C.

AU - Stutz, C. E.

PY - 1998/7/15

Y1 - 1998/7/15

N2 - We have carried out saturation spectroscopy of cyclotron resonance in a semiconducting InAs/Al0.5Ga0.5Sb single quantum well using the UCSB free electron laser and have extracted an effective Landau level lifetime using an n-level rate equation model. The effective lifetime shows strong oscillations (> an order of magnitude) with frequency. Minima are shifted to higher frequencies than those given by the simple parabolic magnetophonon resonance condition due to large nonparabolicity in the InAs conduction band. We have also used this technique to investigate the origins of two lines: the X-line and cyclotron resonance in a "semimetallic" InAs/Al0.1Ga0.9Sb single quantum-well structure. Results show that the two lines are of different origin.

AB - We have carried out saturation spectroscopy of cyclotron resonance in a semiconducting InAs/Al0.5Ga0.5Sb single quantum well using the UCSB free electron laser and have extracted an effective Landau level lifetime using an n-level rate equation model. The effective lifetime shows strong oscillations (> an order of magnitude) with frequency. Minima are shifted to higher frequencies than those given by the simple parabolic magnetophonon resonance condition due to large nonparabolicity in the InAs conduction band. We have also used this technique to investigate the origins of two lines: the X-line and cyclotron resonance in a "semimetallic" InAs/Al0.1Ga0.9Sb single quantum-well structure. Results show that the two lines are of different origin.

KW - Landau level lifetime

KW - Magnetophonon resonance

KW - Nonparabolicity

KW - Saturation

UR - https://www.scopus.com/pages/publications/0006201815

U2 - 10.1016/S1386-9477(98)00044-7

DO - 10.1016/S1386-9477(98)00044-7

M3 - Article

AN - SCOPUS:0006201815

SN - 1386-9477

VL - 2

SP - 204

EP - 208

JO - Physica E: Low-Dimensional Systems and Nanostructures

JF - Physica E: Low-Dimensional Systems and Nanostructures

IS - 1-4

ER -

Saturation spectroscopy of electronic states in a magnetic field in InAs/Al_xGa_1-xSb single quantum wells

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this