MAGNETIC-SUSCEPTIBILITY IN THE NORMAL-STATE - A TOOL TO OPTIMIZE T(C) WITHIN A GIVEN SUPERCONDUCTING OXIDE SYSTEM

被引：34
作者：
ALLGEIER, C
SCHILLING, JS
机构：
[1] UNIV MUNICH,SEKT PHYS,W-8000 MUNICH 40,GERMANY
[2] WALTHER MEISSNER INST TIEFTEMP FORSCH,W-8046 GARCHING,GERMANY
[3] WASHINGTON UNIV,DEPT PHYS,ST LOUIS,MO 63130
来源：
PHYSICAL REVIEW B | 1993年 / 48卷 / 13期
关键词：
D O I：
10.1103/PhysRevB.48.9747
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We compare the static magnetic susceptibilities of La2-xSrxCuO4, YBa2Cu3O6+y, Bi2Sr1.6La0.4CuO6+y, Bi2Sr2CaCu2O8+y, Tl2Ba2CuO6+y, Tl2Ba2CaCu2O8+y, and Tl2Ba2Ca2Cu3O10+y as a function of the oxygen content. The main results are that (1) the spin susceptibility in the normal state chi(s) is primarily determined by the CuO2 layers, (2) the Meissner fraction increases markedly with the transition temperature T(c), and (3) for samples with the optimum value of T(c), chi(s) correlates linearly with the calculated band-structure density of states at the Fermi energy. We also discuss how the value of the magnetic susceptibility in the normal state can be used to optimize T(c) within a given compound system.
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页码：9747 / 9753
页数：7
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