Effect of diamagnetic cobalt on the exchange interactions in the layered lithium iron oxide

被引：2

作者：

Chappel, E

Holzapfel, M

Chouteau, G

Ott, A

机构：

[1] Max Planck Inst Festkorperforsch, Grenoble High Magnet Field Lab, CNRS, F-38042 Grenoble 9, France

[2] Ecole Natl Super Electrochim & Electrome Grenoble, Lab Electrochim & Physicochim Mat & Interfaces, INPG, F-38402 St Martin Dheres, France

[3] Univ Tubingen, Inst Anorgan Chem, D-72070 Tubingen, Germany

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2001年 / 226卷

关键词：

layered Heisenberg systems; metamagnetism; mean-field approximation; high-field magnetism;

D O I：

10.1016/S0304-8853(00)00728-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Layered LiFeO2 is an antiferromagnet with a Neel temperature T-N = 20 K. Substituting Fe with diamagnetic Co3+ surprisingly leads first (up to x = 0.4). to an increase of the Weiss temperature theta and then above x = 0.4 to a decrease due to a dilution effect. Magnetic properties are qualitatively interpreted within a mean field model. with ferromagnetic layers coupled antiferromagnetically. Estimation is given of the ferro- and antiferromagnetic interactions. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：652 / 654

页数：3

共 6 条

[1]

ANDERSON PW, 1963, SOLID STATE PHYS, V14, P99

[2]

Barra AL, 1999, EUR PHYS J B, V7, P551, DOI 10.1007/s100510050648

[3] Effect of cobalt on the magnetic properties of the LiFe1-xCoxO2 layered system (0≤x≤1) [J].