摘要At temperature above 1K, we measured the temperature dependence of the longitudinal and Hall resistivity ρxx,ρxy in the regime of the quantum Hall plateau-to-plateau transitions. The localization exponent v is extracted with an approach based on the variable range hopping theory. We find the quantity v≈2.3 at the second Landau level, which is proven to be accurately universal.
Abstract：At temperature above 1K, we measured the temperature dependence of the longitudinal and Hall resistivity ρxx,ρxy in the regime of the quantum Hall plateau-to-plateau transitions. The localization exponent v is extracted with an approach based on the variable range hopping theory. We find the quantity v≈2.3 at the second Landau level, which is proven to be accurately universal.
TU Tao;ZHAO Yong-Jie;HAO Xiao-Jie;WANG Cheng-You;GUO Guang-Can;GUO Guo-Ping. Localization Exponent for the Second Landau Level in the Quantum Hall Effect[J]. 中国物理快报, 2008, 25(3): 1083-1086.
TU Tao, ZHAO Yong-Jie, HAO Xiao-Jie, WANG Cheng-You, GUO Guang-Can, GUO Guo-Ping. Localization Exponent for the Second Landau Level in the Quantum Hall Effect. Chin. Phys. Lett., 2008, 25(3): 1083-1086.
[1] Sondhi S L, Girvin S M, Carini J P and Shahar D 1997 Rev. Mod. Phys. 69 315 [2] Huckestein B 1995 Rev. Mod. Phys. 67 357 [3] Pruisken A M M 1988 Phys. Rev. Lett. 61 1297 [4] Aoki H and Ando T 1985 Phys. Rev. Lett. 54 831 [5] Huckestein B and Kramer B 1990 Phys. Rev. Lett. 64 1437 [6] Chalker J T and Coddington P D 1988 J. Phys. C 21 2665 [7] Lee D -H, Wang Z and Kivelson S 1993 Phys. Rev.Lett. 70 4130 [8] Huo Y and Bhatt R N 1992 Phys. Rev. Lett. 68% 1375 [9] Huckestein B 1994 Phys. Rev. Lett. 72 1080. [10] Liu D and Das Sarma S 1993 Mod. Phys. Lett. B 7 449 [11] Liu D and Das Sarma S 1994 Phys. Rev. B %49 2677. [12] Mieck B 1990 Europhys. Lett. 13 453 [13] Mieck B 1993 Z. Phys. B 90 427 [14] Wei H P, Tsui D C, Paalanen M A and Pruisken A M M 1988 Phys. Rev. Lett. 61 1294 [15] Koch S, Haug R J, Klitzing K v and Ploog K 1991 Phys. Rev. B 43 6828 [16] Wei H P, Lin S Y, Tsui D C and Pruisken A M M 1992 Phys. Rev. B 45 3926 [17] Li W, Csathy G A, Tsui D C, Pfeiffer L N and West K W2005 Phys. Rev. Lett. 94 206807 [18] Tu T et al 2007 Chin. Phys. Lett. 24 1346 [19] Tu T et al 2007 Phys. Lett. A 368 108 [20] Tu T et al 2008 (in prepare) [21] Paalanen M A, Tsui D C and Gossard A C 1982 Phys.Rev. B 25 5566 [22] Polyakov D G and Shklovskii B I 1993 Phys. Rev.Lett. 70 3796 [23] Hohls F, Zeitler U, and Haug R J 2002 Phys. Rev.Lett. 88 036802 [24] Koch S, Haug R J, Klitzing K V and Ploog K 1991 Phys. Rev. Lett. 67 883
2008, Vol. 25 
