https://scholars.lib.ntu.edu.tw/handle/123456789/328933
標題: | Magnetic-field-induced insulator-quantum Hall conductor-insulator transitions in doped GaAs/AlxGa1-xAs quantum wells | 作者: | Lee, C.H. YUAN-HUEI CHANG Suen, Y.W. Lin, H.H. |
公開日期: | 1997 | 卷: | 56 | 期: | 23 | 起(迄)頁: | 15238-15241 | 來源出版物: | Physical Review B - Condensed Matter and Materials Physics | 摘要: | We present magnetotransport measurements on (Formula presented) multiple quantum wells doped with impurities at the centers of GaAs layers. Magnetic-field-induced insulator-quantum Hall conductor-insulator transitions with a well defined scaling behavior were observed. The critical exponents as well as the resistivities at the two critical magnetic fields are close to each other. Their values are, however, different from the values obtained from similar studies performed on modulation-doped (Formula presented) heterostructures. © 1997 The American Physical Society. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-0013110719&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/328933 |
ISSN: | 10980121 | DOI: | 10.1103/PhysRevB.56.15238 |
顯示於: | 物理學系 |
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