The spin-s quantum Heisenberg ferromagnetic models in the physical magnon theory

CORC > 物理研究所 > 物理所公开发表论文 > 期刊论文

	The spin-s quantum Heisenberg ferromagnetic models in the physical magnon theory
	Liu, BG ; Pu, FC
刊名	JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
	2001
卷号	231 期号:2-3 页码:307
关键词	MAGNETIC EXCITATIONS ZERO TEMPERATURE ANTIFERROMAGNET
ISSN号	0304-8853
通讯作者	Liu, BG (reprint author), Chinese Acad Sci, Inst Phys, POB 603, Beijing 100080, Peoples R China.
中文摘要	The spin-s quantum Heisenberg ferromagnetic model is investigated in the physical magnon theory. The effect of the extra unphysical magnon states on every site is completely removed in the magnon Hamiltonian and during approximation procedure so that the condition = 0(n greater than or equal to 2s + 1) is rigorously satisfied. The physical multi-approximation occupancy (1 less than or equal to n less than or equal to 2s) is proportional to T-3n/2 at low temperature and is equivalent to 1/(2s + 1) at the Curie temperature. The magnetization not only unified but also well-behaved from zero temperature to Curie temperature is obtained in the framework of the magnon theory for the spin-s quantum Heisenberg ferromagnetic model. The ill-behaved magnetizations at high temperature in earlier magnon theories are completely corrected. The relation of magnon (spin wave) theory with spin-operator decoupling theory is clearly understood. (C) 2001 Elsevier Science B.V. All rights reserved.
收录类别	SCI
语种	英语
公开日期	2013-09-23
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/45476]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Liu, BG,Pu, FC. The spin-s quantum Heisenberg ferromagnetic models in the physical magnon theory[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2001,231(2-3):307.
APA	Liu, BG,&Pu, FC.(2001).The spin-s quantum Heisenberg ferromagnetic models in the physical magnon theory.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,231(2-3),307.
MLA	Liu, BG,et al."The spin-s quantum Heisenberg ferromagnetic models in the physical magnon theory".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 231.2-3(2001):307.