Charge states of atoms in the lattices of the high-temperature superconductors HgBa2Can-1CunO2n+2

被引：1

作者：

Nasredinov, FS ^{[1
]}

Masterov, VF ^{[1
]}

Seregin, NP ^{[1
]}

Seregin, PP ^{[1
]}

机构：

[1] St Petersburg State Tech Univ, St Petersburg 195251, Russia

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2000年 / 12卷 / 35期

关键词：

D O I：

10.1088/0953-8984/12/35/312

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Electric field gradient tensor parameters for the copper, barium and mercury sites of the HgBa2Can-1CunO2n+2 lattices (n = 1, 2, 3) have been determined by the emission Mossbauer spectroscopy on the Cu-67(Zn-67), Ba-133(Cs-133) and Hg-197(Au-197) isotopes and calculated using the point charge approximation. An analysis of the obtained results together with published Cu-63 NMR data has shown that an agreement between the experimental and calculated parameters is possible under assumption that holes arising from lattice defects are mainly located in oxygen sublattices of the Cu-O planes (Cu(2)-O plane for HgBa2Ca2Cu3O8).

引用

页码：7771 / 7779

页数：9

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