LIMITATIONS ON A COMBINED PHONON-NON-PHONON MECHANISM FOR SUPERCONDUCTIVITY IN BI2SR2CA1CU2OX

被引：0

作者：

BARBEE, TW

COHEN, ML

PENN, DR

机构：

[1] UNIV CALIF BERKELEY,DEPT PHYS,BERKELEY,CA 94720

[2] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720

[3] NATL INST STAND & TECHNOL,DIV RADIAT PHYS,GAITHERSBURG,MD 20899

来源：

PHYSICS LETTERS A | 1991年 / 161卷 / 01期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0375-9601(91)90551-I

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Despite the large number of theories proposed to explain high-temperature superconductivity, no clear explanation of its origin exists. Experimental data such as the isotope effect alpha and the gap ratio 2-DELTA/k(B)T(c) can be used to constrain possible models for high-temperature superconductivity. We consider a class of models which contain contributions to pairing from phonons and also from another unspecified boson, and place limitations on such models in light of these experimental data and recent results derived from photoemission data for Bi2Sr2Ca1Cu2Ox.

引用

页码：85 / 88

页数：4

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