Physics of High-Temperature Superconductors
Physics of High-Temperature Superconductors
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DOI：
10.1007/978-3-642-84718-9
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
S. Maekawa;M. Sato
中科院分区：
文献类型：
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作者：
S. Maekawa;M. Sato
过渡金属氧化物分为两类：电荷转移（CT）材料和莫特-哈伯德（MH）材料。众所周知，CT 材料中含有高温氧化物。这是因为铜离子和氧离子的能级的微妙平衡以及独特的晶体结构。在本讲座中，我们研究了各种氧化物中的晶体结构和电子结构之间的关系，并讨论了高温超导体中的关键物理参数。特别关注 CT 和 MH 材料之间电子特性的关键差异。材料各种电子特性的系统变化为我们提供了有关高温超导机制的宝贵信息。
Transition metal oxides are classified into two categories: the charge transfer (CT) materials and the Mott-Hubbard (MH) ones. High temperature oxides are known to be in the CT materials. This is because of the subtle balance of the energy levels in copper and oxygen ions and of the unique crystal structure. In this lecture, we examine relations between crystal structure and electronic structure in a variety of the oxides and discuss what the key physical parameters are in the high temperature superconductors. Special attention is paid to the crucial difference in the electronic properties between CT and MH materials. Systematic variation in various electronic properties with materials provides us with valuable information on the mechanism of high temperature superconductivity.