ANTIFERROMAGNETIC ORDERING AND SPIN STRUCTURE IN THE ORGANIC CONDUCTOR, KAPPA-(BEDT-TTF)(2)CU[N(CN)(2)]CL

被引：269

作者：

MIYAGAWA, K ^{[1
]}

KAWAMOTO, A ^{[1
]}

NAKAZAWA, Y ^{[1
]}

KANODA, K ^{[1
]}

机构：

[1] OCHANOMIZU UNIV, DEPT PHYS, BUNKYO KU, TOKYO 112, JAPAN

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.75.1174

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The magnetism of an insulator, kappa-(BEDT-TTF)(2)Cu[N(CN)(2)]Cl, situated near the 10 K superconducting phase in kappa-type BEDT-TTF family, has been studied by H-1 NMR for the first time. A commensurate antiferromagnetic ordering with a moment of (0.4-1.0)mu(B)/dimer was found below 26-27 K. The features, quite different from the conventional spin density wave, suggest that the magnetic order is driven by strong electron correlation rather than by nesting of the Fermi surface, and that the present salt is a Mott insulator. Magnetization measurements show spin canting parallel to the conducting layer below 23 K at low fields.

引用

页码：1174 / 1177

页数：4

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