PSEUDOSPIN RELAXATION IN FERROMAGNETIC CLUSTERS

被引：17

作者：

BALLONE, P

MILANI, P

DEHEER, WA

机构：

[1] Institut de Physique Expérimentale, Ecole Polytechnique Fédérale de Lausanne, PHB-Ecublens

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.44.10350

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A simple model Hamiltonian is proposed to explain the magnetic properties of size-selected cold iron clusters probed by Stern-Gerlach deflections in a molecular beam. Single-sided deflections are well reproduced by this model, which invokes the coupling of the spin system to the cluster framework via the magnetic anisotropy energy. The model does not assume thermal relaxation and the alignment of the magnetic moment with the field is reversible.

引用

页码：10350 / 10353

页数：4

共 15 条

[1] INTRAMOLECULAR SPIN RELAXATION IN ISOLATED MOLECULES
AMIRAV, A
NAVON, G
[J]. PHYSICAL REVIEW LETTERS, 1981, 47 (13) : 906 - 909
[2] [Anonymous], 2007, INTRO SOLID STATE PH
[3] [Anonymous], 1978, MATH COMPUT, DOI DOI 10.2307/2006361
[4] OBSERVATION OF MACROSCOPIC SPIN PHENOMENA IN NANOMETER-SCALE MAGNETS
AWSCHALOM, DD
MCCORD, MA
GRINSTEIN, G
[J]. PHYSICAL REVIEW LETTERS, 1990, 65 (06) : 783 - 786
[5] Bean C.P., 1959, J APPL PHYS, V30, pS120, DOI DOI 10.1063/1.2185850
[6] MAGNETIC-PROPERTIES OF FREE COBALT CLUSTERS
BUCHER, JP
DOUGLASS, DC
BLOOMFIELD, LA
[J]. PHYSICAL REVIEW LETTERS, 1991, 66 (23) : 3052 - 3055
[7] QUANTUM TUNNELING OF MAGNETIZATION IN SMALL FERROMAGNETIC PARTICLES
CHUDNOVSKY, EM
GUNTHER, L
[J]. PHYSICAL REVIEW LETTERS, 1988, 60 (08) : 661 - 664
[8] DEHEER W, 1991, Z PHYS D ATOM MOL CL, V19, P241, DOI 10.1007/BF01448302
[9] SPIN RELAXATION IN SMALL FREE IRON CLUSTERS
DEHEER, WA
MILANI, P
CHATELAIN, A
[J]. PHYSICAL REVIEW LETTERS, 1990, 65 (04) : 488 - 491
[10] TEMPERATURE DEPENDENCE OF MAGNETOCRYSTALLINE ENERGY CONSTANTS K1 K2 AND K3 OF IRON
GENGNAGEL, H
HOFMANN, U
[J]. PHYSICA STATUS SOLIDI, 1968, 29 (01): : 91 - +

← 1 2 →