Table of Contents
Research Letters in Physics
Volume 2008 (2008), Article ID 157070, 4 pages
http://dx.doi.org/10.1155/2008/157070
Research Letter

Molecular Field Calculation of Magnetization on N d R h 2 G e 2 Single Crystal

1Graduate School of Science and Engineering, Yamaguchi University, Yamaguchi 753-8511, Japan
2General Culture Department, Ube National College of Technology, Ube 755-8555, Japan

Received 17 April 2008; Accepted 20 May 2008

Academic Editor: Sean Cadogan

Copyright © 2008 A. Himori et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Calculation of magnetization of the ternary single crystal compound N d R h 2 G e 2 has been carried out by using the wave-like molecular field model to explain the complex magnetic behavior. The field-induced magnetic structures having the propagation vectors, 𝐐 2 = ( 0 , 0 , 3 9 / 4 0 ) , 𝐐 3 = ( 0 , 0 , 3 5 / 4 0 ) , 𝐐 4 = ( 0 , 0 , 3 1 / 4 0 ) , and 𝐐 5 = ( 0 , 0 , 0 / 4 0 ) (= the field-induced ferromagnetic phase) were proposed. Calculation on the basis of these structures and the antiferromagnetic phase with 𝐐 1 = ( 0 , 0 , 1 ) well reproduces the experimental magnetization processes and 𝐻 - 𝑇 magnetic phase diagram.