MAGNETIC-FIELD DEPENDENCE OF THE AC SUSCEPTIBILITY IN ANTIGRANULOCYTES YBA2CU3O7 - DATA AND MODELS

被引：35
作者：
KIM, YT
LAM, QH
JEFFRIES, CD
机构：
[1] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720
[2] LAWRENCE BERKELEY LAB,DIV MAT & CHEM SCI,BERKELEY,CA 94720
来源：
PHYSICAL REVIEW B | 1991年 / 43卷 / 13期
关键词：
D O I：
10.1103/PhysRevB.43.11404
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
For a sintered rod of YBa2Cu3O7 at 78.3 K, detailed data are reported for the complicated dependence of the ac susceptibility approximately-chi = chi' - i-chi'' on applied ac and dc fields, ascribed to the inter- and intragranular components of the material. The intergranular data are understood in detail by a modified critical-state model, assuming a critical current density J(c)(H) approximately H-2. Approximately-chi(H(dc)) also displays hysteresis which is not readily explicable by this model.
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页码：11404 / 11407
页数：4
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