PRESSURE DEPENDENCE OF HIGH-Tc SUPERCONDUCTING OXIDES.

被引：0
|
作者：
Kaneko, Takejiro
Yoshida, Hajime
Abe, Shunya
Morita, Hiroaki
Noto, Kohshichi
Fujimori, Hiroyasu
机构：
来源：
Japanese Journal of Applied Physics, Part 2: Letters | 1987年 / 26卷 / 08期
关键词：
CERAMIC MATERIALS - Pressure Effects - MAGNETIC MATERIALS - Antiferromagnetism - OXIDES - Pressure Effects;
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摘要：
Pressure dependence of the superconducting transition temperature T//c and the lattice parameter for high-T//c oxides is discussed on the basis of Cyrot's model in which T//c is proportional to t**2/U (t is the transfer integral and U the intraatomic Coulomb repulsion). The relation between dT//c/dP and K//vT//c (K//v is the volume compressibility) is examined in connection with the empirical relation found for magnetic compounds with an antiferromagnetic superexchange interaction in which T//N is proportional to t**2/U.
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页码：1374 / 1376
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