WIDE TEMPERATURE SCALING LAW OF THE SECONDARY PEAK OBSERVED IN MAGNETIZATION CURVES OF SINGLE-CRYSTALS (LA,SR)2CUO4

被引：40
作者：
KOBAYASHI, T
NAKAYAMA, Y
KISHIO, K
KIMURA, T
KITAZAWA, K
YAMAFUJI, K
机构：
[1] Department of Industrial Chemistry, University of Tokyo, Bunkyo-ku, Tokyo 113
来源：
APPLIED PHYSICS LETTERS | 1993年 / 62卷 / 15期
关键词：
D O I：
10.1063/1.109563
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Magnetization cur-ves of single crystals (La1-xSrx)2CuO4 with various Sr contents were measured. A distinct increase of magnetization with increasing applied field was observed in Sr overdoped compositions, when the magnetic field was applied perpendicular to the CuO2 plane. The field, B(pk), where magnetization showed a maximum value, was strongly dependent on temperature. Its dependence was expressed by a universal relation square-root B(pk) = c(x)[1 - T/T(c)(x)] over a wide temperature range; between 4.2 K and T(c). Possible mechanisms which give rise to the observed distinct secondary peak effect are discussed.
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页码：1830 / 1832
页数：3
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