Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/5383
Title: Temperature for a dynamic spin ensemble
Authors: Ma, PW
Dudarev, SL
Semenov, AA
Woo, CH
Keywords: Nickel
Fluctuations
Particles
Magnetism
States
Issue Date: Sep-2010
Publisher: American Physical Society
Source: Physical review E, statistical, nonlinear, and soft matter physics, Sept. 2010, v. 82, no. 3, 031111, p. 1-6 How to cite?
Journal: Physical review E, statistical, nonlinear, and soft matter physics 
Abstract: In molecular dynamics simulations, temperature is evaluated, via the equipartition principle, by computing the mean kinetic energy of atoms. There is no similar recipe yet for evaluating temperature of a dynamic system of interacting spins. By solving semiclassical Langevin spin-dynamics equations, and applying the fluctuation-dissipation theorem, we derive an equation for the temperature of a spin ensemble, expressed in terms of dynamic spin variables. The fact that definitions for the kinetic and spin temperatures are fully consistent is illustrated using large-scale spin dynamics and spin-lattice dynamics simulations.
URI: http://hdl.handle.net/10397/5383
ISSN: 1539-3755 (print)
1550-2376 (online)
DOI: 10.1103/PhysRevE.82.031111
Rights: Physical Review E © 2010 The American Physical Society. The Journal's web site is located at http://pre.aps.org/
Appears in Collections:Journal/Magazine Article

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