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Abstract
Shubnikov-de Haas (SdH) oscillation and quantum Hall effect measurements on pseudomorphic InGaAs/InAlAs modulation doped heterostructure,grown by gas source molecular beam epitaxy,have been carried out to investigate the magetotransport properties of the two-dimensional electron gas in the strained InGaAs quantum well.The SdH measurements at 0.3K demonstrated the existence of a quasi-two-dimensional electron gas in the pseudomorphic InGaAs/InAlAs heterostructure.The fast Fourier transformation results for the SdH data clearly indicate the occupation of two subbands in InGaAs strained quantum well.Comparison between SdH data on the structure with undoped InGaAs cap layer and the structure with heavily Si doped cap layer reveals that different doping in cap layer has large effect on the parallel conductance of the modulation doped structure.
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CHEN JIAN-XIN,

LI AI-ZHEN,

REN YAO-CHENG,

K.FRIEDLAND

1.
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[2]	Zhou Wen-Zheng, Lin Tie, Shang Li-Yan, Huang Zhi-Ming, Cui Li-Jie, Li Dong-Lin, Gao Hong-Ling, Zeng Yi-Ping, Guo Shao-Ling, Gui Yong-Sheng, Chu Jun-Hao.Weak anti-localization in InAlAs/InGaAs/InAlAs high mobility two-dimensional electron gas systems. Acta Physica Sinica, 2007, 56(7): 4099-4104.doi:10.7498/aps.56.4099
[3]	Xiao Jin-Biao, Ma Chang-Feng, Zhang Ming-De, Sun Xiao-Han.Quasi-vectorial analysis of the optical characteristics of rib waveguides and directional couplers based on InGaAs/InAlAs multiple quantum wells. Acta Physica Sinica, 2006, 55(1): 254-260.doi:10.7498/aps.55.254
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[8]	Zhu Tian-Wei, Zhang Yuan-Chang, Xu Bo, Liu Feng-Qi, Wang Zhan-Guo.Optical properties of InGaAs self-assembled quantum dots with InAlAs wetting lay er. Acta Physica Sinica, 2003, 52(8): 2087-2091.doi:10.7498/aps.52.2087
[9]	Liu Hong-Xia, Hao Yue, Zhang Tao, Zheng Xue-Feng, Ma Xiao-Hua.Study on the kink effect in AlGaAs/InGaAs/GaAs PHEMTs. Acta Physica Sinica, 2003, 52(4): 984-988.doi:10.7498/aps.52.984
[10]	.. Acta Physica Sinica, 2002, 51(2): 372-376.doi:10.7498/aps.51.372
[11]	Ding Guo－qing.The Test Determination for the Most Narrow Band－GaP of InGaAsP/InGaA s/InP Heterostructure Bulk Materials. Acta Physica Sinica, 2000, 49(1): 119-123.doi:10.7498/aps.49.119
[12]	GUI YONG-SHENG, ZHENG GUO-ZHEN, GUO SHAO-LING, CHU JUN-HAO, TANG DING-YUAN, CHEN JIAN-XIN, LI AI-ZHENG.SPIN SPLITTING IN PSEUDOMORPHIC InGaAs/InAlAs GRADED HETEROSTRUCTURES AS B→0. Acta Physica Sinica, 1999, 48(1): 121-126.doi:10.7498/aps.48.121
[13]	YU QIAN, WANG JIAN-HUA, LI DE-JIE, WANG YU-TIAN, ZHUANG YAN, JIANG WEI, HUANG YI, ZHOU JUN-MING.STUDY ON THE QUANTUM CONFINED STARK EFFECT OF InGaAs/InAlAs MULTIPLE QUANTUM WELL STRUCTURES. Acta Physica Sinica, 1996, 45(2): 274-282.doi:10.7498/aps.45.274
[14]	Shen Wen-Zhong, Tang Wen-Guo, Shen Xue-Chu, A.Dimonlas.. Acta Physica Sinica, 1995, 44(5): 825-831.doi:10.7498/aps.44.825
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[17]	LU LI-WU, ZHOU JIE, LIANG JI-BEN, KONG MEI-YING.DEEP LEVEL STUDIES OF P-HEMT STRUCTURE GROWN BY MBE. Acta Physica Sinica, 1993, 42(5): 817-823.doi:10.7498/aps.42.817
[18]	REN YAN-RU.ORBITAL SPIN-SPLITTING FACTORS FOR CONDUCTION ELECTRONS IN LEAD: DE HAAS-VAN ALPHEN STUDIES WITH MAGNETIC FEEDBACK. Acta Physica Sinica, 1989, 38(10): 1559-1568.doi:10.7498/aps.38.1559
[19]	ZHENG GUO-ZHEN, GUO SHAO-LING, TANG DING-YUAN.SHUBNIKOV-DE HAAS OSCILLATION IN n-Hg1-xCdxTe. Acta Physica Sinica, 1987, 36(1): 114-119.doi:10.7498/aps.36.114
[20]	ZHOU JUN-MING, HUANG YI, MENG QING-HUI, CHENG WEN-QIN, WU YONG-SHENG, LI YONG-KANG, YANG ZHONG-XING.GROWTH AND TRANSPORT PROPERTIER OF MODULATION DOPED GaAs/AlGaAs HETEROSTRUCTURES. Acta Physica Sinica, 1986, 35(2): 269-273.doi:10.7498/aps.35.269

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Vol. 47, Issue 5 - 1998-03-05

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