Spin relaxation and resonant phonon trapping in   [Gd-2(fum)(3)(H2O)(4)]center dot 3H(2)O

doi:10.1103/PhysRevB.81.214410

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	Spin relaxation and resonant phonon trapping in [Gd-2(fum)(3)(H2O)(4)]center dot 3H(2)O
	Orendac, M. ; Sedlakova, L. ; Cizmar, E. ; Orendacova, A. ; Feher, A. ; Zvyagin, S. A. ; Wosnitza, J. ; Zhu, W. H. ; Wang, Z. M. ; Gao, S.
刊名	physical review b
	2010
关键词	SINGLE-ION-ANISOTROPY THERMAL-BEHAVIOR HEISENBERG-FERROMAGNET LATTICE RELAXATION LOW-TEMPERATURES ETHYL-SULFATE BOTTLENECK MAGNETISM SYSTEMS
DOI	10.1103/PhysRevB.81.214410
英文摘要	Results of ac-susceptibility, specific-heat, magnetization, and electron-spin-resonance studies of a [Gd-2(fum)(3)center dot(H2O)(4)]center dot 3H(2)O (fum=fumarate, C4H2O4) powder samples are reported. The results of these measurements enabled us to identify the studied compound as a three-dimensional S = 7/2 Heisenberg magnet with T-N = 0.19 K and dominant crystal-field anisotropy. The susceptibility studies conducted at audio frequencies and temperatures from 2 to 30 K revealed that the application of static magnetic fields induces a slow spin relaxation. The relaxation is not associated with an anisotropy energy barrier and is explicable assuming resonant phonon trapping. The magnetic field dependence of the relaxation time is consistent with the proposed scenario and suggests that a strong spin-lattice interaction may be the mechanism governing the relaxation properties in the studied system.; Physics, Condensed Matter; SCI(E); 11; ARTICLE; 21; 81
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/395739]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Orendac, M.,Sedlakova, L.,Cizmar, E.,et al. Spin relaxation and resonant phonon trapping in [Gd-2(fum)(3)(H2O)(4)]center dot 3H(2)O[J]. physical review b,2010.
APA	Orendac, M..,Sedlakova, L..,Cizmar, E..,Orendacova, A..,Feher, A..,...&Gao, S..(2010).Spin relaxation and resonant phonon trapping in [Gd-2(fum)(3)(H2O)(4)]center dot 3H(2)O.physical review b.
MLA	Orendac, M.,et al."Spin relaxation and resonant phonon trapping in [Gd-2(fum)(3)(H2O)(4)]center dot 3H(2)O".physical review b (2010).