Optimal spectrum for the borocarbides YNi2B2C and LuNi2B2C

被引：5
作者：
Manalo, S
Schachinger, E
机构：
[1] Johannes Kepler Univ Linz, Inst Theoret Phys, A-4040 Linz, Austria
[2] Graz Univ Technol, Inst Theoret Phys, A-8010 Graz, Austria
来源：
JOURNAL OF LOW TEMPERATURE PHYSICS | 2001年 / 123卷 / 3-4期
关键词：
D O I：
10.1023/A:1017588310992
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The concept of an optimal electron-phonon interaction spectral density as an Einstein spectrum which allows to describe all physical properties of a superconductor in an optimal way is developed from Carbotte's original definition of an optimum spectrum. It is shown, using the borocarbides YNi2B2C and LuNi2B2C as examples, that such a concept is meaningful even for anisotropic systems. An Einstein spectrum is sufficient for clean-limit systems, a 2 delta -peak spectrum is better suited for anisotropic systems with impurities.
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页码：149 / 163
页数：15
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