QUANTUM HEISENBERG SPIN-GLASS MODEL WITH MIXED-ANISOTROPY INTERACTIONS IN APPLIED MAGNETIC-FIELDS

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	QUANTUM HEISENBERG SPIN-GLASS MODEL WITH MIXED-ANISOTROPY INTERACTIONS IN APPLIED MAGNETIC-FIELDS
	Y. S. Xiong; Y. M. Shang; L. Yi; K. L. Yao
	1995
发表期刊	Journal of Physics-Condensed Matter
ISSN	0953-8984
卷号	7 期号:14 页码:2865-2873
摘要	In the static replica symmetric approximation, a quantum Heisenberg S = 1 spin-glass model with single-ion uniaxial anisotropy and infinite-range random Dzyaloshinskii-Moriya (DM) interaction in applied magnetic fields is investigated. The local susceptibility and the corresponding order parameters are calculated numerically, and are found to be in good agreement with those of thermofield dynamics. The dependences of entropy and specific heat on temperature are studied numerically at various magnetic fields. It is shown that the entropy is always positive and the quantum fluctuation has a very strong effect on the specific heat. Especially, the typical crossover behaviour of the specific heat of a spin glass at various magnetic fields for mixed-anisotropy interactions is found.
部门归属	huazhong univ sci & technol,natl lab laser technol,wuhan 430074,peoples r china. china ctr adv sci & technol,world lab,beijing 100080,peoples r china. hong kong univ sci & technol,dept phys,kowloon,hong kong. acad sinica,int ctr mat phys,shenyang 110015,peoples r china.;xiong, ys (reprint author), huazhong univ sci & technol,dept phys,wuhan 430074,peoples r china
关键词	Uniaxial Anisotropy Moriya Interactions Transverse Field Transition State
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/38713
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. S. Xiong,Y. M. Shang,L. Yi,et al. QUANTUM HEISENBERG SPIN-GLASS MODEL WITH MIXED-ANISOTROPY INTERACTIONS IN APPLIED MAGNETIC-FIELDS[J]. Journal of Physics-Condensed Matter,1995,7(14):2865-2873.
APA	Y. S. Xiong,Y. M. Shang,L. Yi,&K. L. Yao.(1995).QUANTUM HEISENBERG SPIN-GLASS MODEL WITH MIXED-ANISOTROPY INTERACTIONS IN APPLIED MAGNETIC-FIELDS.Journal of Physics-Condensed Matter,7(14),2865-2873.
MLA	Y. S. Xiong,et al."QUANTUM HEISENBERG SPIN-GLASS MODEL WITH MIXED-ANISOTROPY INTERACTIONS IN APPLIED MAGNETIC-FIELDS".Journal of Physics-Condensed Matter 7.14(1995):2865-2873.