ELECTRONIC BAND-STRUCTURE OF YBA2CU4O8

被引：27

作者：

OGUCHI, T ^{[1
]}

SASAKI, T ^{[1
]}

TERAKURA, K ^{[1
]}

机构：

[1] UNIV TOKYO,INST SOLID STATE PHYS,MINATO KU,TOKYO 106,JAPAN

来源：

PHYSICA C | 1990年 / 172卷 / 3-4期

关键词：

D O I：

10.1016/0921-4534(90)90617-N

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have performed local-density-functional band-structure calculations for a new high-T(c) superconducting phase, YBa2Cu4O8. General characteristics in the energy band are quite similar to those of YBa2Cu3O7. We have found a noticeable energy-level lowering of oxygen p-states at the chain and apex sites, which may explain the relative stability of the oxygen ions in YBa2Cu4O8. It is also suggested that, related to the energy-level lowering, a certain distinct difference in the Fermi surfaces should be observed for this new phase.

引用

页码：277 / 281

页数：5

共 28 条

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