Supporting evidence of the unusual insulating behavior in the low-temperature normal-state resistivity of underdoped La2-xSrxCuO4

被引:30
作者
Ando, Y
Boebinger, GS
Passner, A
Tamasaku, K
Ichikawa, N
Uchida, S
Okuya, M
Kimura, T
Shimoyama, J
Kishio, K
机构
[1] UNIV TOKYO,SUPERCONDUCT RES COURSE,TOKYO 113,JAPAN
[2] UNIV TOKYO,DEPT APPL CHEM,TOKYO 113,JAPAN
[3] CENT RES INST ELECT POWER IND,KOMAE,TOKYO 201,JAPAN
关键词
D O I
10.1007/BF00768492
中图分类号
O59 [应用物理学];
学科分类号
摘要
Low-temperature anisotropic normal-state resistivity is measured in La2-xSrxCuO4 single crystals by suppressing the superconductivity with a 61-T pulsed magnetic field. The logarithmic temperature dependence of both rho(ab) and rho(c) first reported in Phys. Rev. Lett. 75, 4666 (1995) is observed in a much cleaner x=0.08 sample, as well as in samples with x=0.15 which is near optimum doping, but slighly underdoped. This extension of the original observation suggests that the unusual insulating behavior is a generic property of the low-temperature normal-state of underdoped La2-xSrxCuO4 once superconductivity is suppressed.
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收藏
页码:867 / 875
页数:9
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