標題: Probing Landau quantization with the presence of insulator-quantum Hall transition in a GaAs two-dimensional electron system
作者: Chen, Kuang Yao
Chang, Y. H.
Liang, C-T
Aoki, N.
Ochiai, Y.
Huang, C. F.
Lin, Li-Hung
Cheng, K. A.
Cheng, H. H.
Lin, H. H.
Wu, Jau-Yang
Lin, Sheng-Di
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
公開日期: 23-Jul-2008
摘要: Magneto-transport measurements are performed on the two-dimensional electron system (2DES) in an AlGaAs/GaAs heterostructure. By increasing the magnetic field perpendicular to the 2DES, magneto-resistivity oscillations due to Landau quantization can be identified just near the direct insulator-quantum Hall (I-QH) transition. However, different mobilities are obtained from the oscillations and transition point. Our study shows that the direct I-QH transition does not always correspond to the onset of strong localization.
URI: http://dx.doi.org/10.1088/0953-8984/20/29/295223
http://hdl.handle.net/11536/29198
ISSN: 0953-8984
DOI: 10.1088/0953-8984/20/29/295223
期刊: JOURNAL OF PHYSICS-CONDENSED MATTER
Volume: 20
Issue: 29
結束頁: 
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