The effective g-factor in In0.53Ga0.47As/In0.52Al0.48As quantum well investigated by magnetotransport measurement

2013 ◽  
Vol 113 (3) ◽  
pp. 033704 ◽  
Author(s):  
X. Z. Liu ◽  
Y. G. Xu ◽  
G. Yu ◽  
L. M. Wei ◽  
T. Lin ◽  
...  
2014 ◽  
Vol 115 (17) ◽  
pp. 17C702 ◽  
Author(s):  
Won Young Choi ◽  
Joonyeon Chang ◽  
Jung Hoon Lee ◽  
Hyun Cheol Koo
Keyword(s):  

2012 ◽  
Vol 190 ◽  
pp. 554-557 ◽  
Author(s):  
S.S. Krishtopenko ◽  
V.I. Gavrilenko ◽  
M. Goiran

We report on the study of exchange enhancement of g-factor in 2D electron gas in n-type narrow-gap semiconductor heterostructures that feature a strong nonparabolicity of electric subbands. We demonstrate that exchange g-factor enhancement not only shows maxima at odd values of Landau level filling factors but, due to subband nonparabolicity, persists at even filling factor values as well. The magnitude of the exchange enhancement, the amplitude and shape of the g-factor oscillations are governed by both the screening of electron-electron interaction and the Landau level width. The enhanced g-factor values calculated for 2D electron gas in InAs/AlSb quantum well heterostructures are compared with previous experimental magnetotransport data.


2011 ◽  
Vol 83 (4) ◽  
Author(s):  
Yu. A. Nefyodov ◽  
A. V. Shchepetilnikov ◽  
I. V. Kukushkin ◽  
W. Dietsche ◽  
S. Schmult

2006 ◽  
Vol 39 (5) ◽  
pp. 414-420 ◽  
Author(s):  
H. Malissa ◽  
D. Gruber ◽  
D. Pachinger ◽  
F. Schäffler ◽  
W. Jantsch ◽  
...  

2011 ◽  
Author(s):  
M. V. Yakunin ◽  
A. V. Suslov ◽  
S. M. Podgornykh ◽  
S. A. Dvoretsky ◽  
N. N. Mikhailov ◽  
...  
Keyword(s):  

2011 ◽  
Author(s):  
P. Moon ◽  
J. D. Lee ◽  
W. J. Choi ◽  
Jisoon Ihm ◽  
Hyeonsik Cheong
Keyword(s):  
Type I ◽  
Type Ii ◽  

2012 ◽  
Vol 61 (12) ◽  
pp. 127102
Author(s):  
Wei Lai-Ming ◽  
Zhou Yuan-Ming ◽  
Yu Guo-Lin ◽  
Gao Kuang-Hong ◽  
Liu Xin-Zhi ◽  
...  
Keyword(s):  

Author(s):  
С.В. Гудина ◽  
В.Н. Неверов ◽  
Е.В. Ильченко ◽  
А.С. Боголюбский ◽  
Г.И. Харус ◽  
...  

AbstractThe magnetic-field (0 T < B < 9 T) dependence of the longitudinal and Hall resistances at fixed temperatures (2 K < T < 50 K) for the HgCdTe/HgTe/HgCdTe system with a HgTe quantum well 20.3 nm in width are measured. The activation analysis of the magnetoresistance curves is used as a tool for identifying the mobility gaps between neighboring Landau levels. The activation-energy values obtained from the temperature dependences of the longitudinal resistance in the plateau regions of the quantum Hall effect with the filling factors ν = 1, 2, 3 make it possible to estimate the effective mass and the g factor of electrons in the system under study. Indications concerning the possibility of large values of the g factor (≅ 80) are obtained.


Sign in / Sign up

Export Citation Format

Share Document