A structurally perfect S = 1/2 kagome antiferromagnet

被引：654

作者：

Shores, MP ^{[1
]}

Nytko, EA ^{[1
]}

Bartlett, BM ^{[1
]}

Nocera, DG ^{[1
]}

机构：

[1] MIT, Dept Chem, Cambridge, MA 02139 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2005年 / 127卷 / 39期

关键词：

D O I：

10.1021/ja053891p

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The syntheses and magnetic susceptibilities of a pure series of rare copper minerals from the atacamite family with general formula ZnxCu4-x(OH)6Cl2 (0 ≤ x ≤ 1) are reported. The structure of these compounds features a corner-sharing triangular kagomé lattice of antiferromagnetically coupled Cu(II) ions. We correlate the onset of magnetic ordering with the mole fraction of paramagnetic Cu(II) ions located between kagomé layers and demonstrate that the fully Zn-substituted compound shows no magnetic ordering down to 2 K, resulting in a highly spin-frustrated S = 1/2 lattice. Copyright © 2005 American Chemical Society.

引用

页码：13462 / 13463

页数：2

共 22 条

[1] THE RESONATING VALENCE BOND STATE IN LA2CUO4 AND SUPERCONDUCTIVITY [J].