Quantum coherence in biaxial nanomagnets with a large transverse magnetic field

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We study quantum coherence of the biaxial spin system with a large magnetic field along an arbitrary direction in the plane of hard and medium axes. Within the framework of the instanton method we present the analytic formula of the oscillation rate as a function of magnitude and direction of the magnetic field, and discuss its thermal effect. These features are expected to be tested in existing experimental techniques.
Publisher
AMERICAN PHYSICAL SOC
Issue Date
2001-08
Language
English
Article Type
Article
Keywords

ESCAPE RATE; SPIN SYSTEM; 2ND-ORDER TRANSITIONS; CLASSICAL TRANSITION; MOLECULAR CLUSTERS; IRON CLUSTER; FIRST-ORDER; PARTICLES; NANOPARTICLES; INTERFERENCE

Citation

PHYSICAL REVIEW B, v.64, no.6

ISSN
0163-1829
URI
http://hdl.handle.net/10203/84739
Appears in Collection
EE-Journal Papers(저널논문)
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