Spin dynamics in driven composite multiferroics

Journal Article · Mon Sep 28 00:00:00 EDT 2015 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4931895· OSTI ID:22492724

Wang, Zidong; Grimson, Malcolm J. ^[1]

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1. Department of Physics, The University of Auckland, Auckland 1010 (New Zealand)

A spin dynamics approach has been used to study the behavior of the magnetic spins and the electric pseudo-spins in a 1-D composite multiferroic chain with a linear magneto-electric coupling at the interface. The response is investigated with either external magnetic or electric fields driving the system. The spin dynamics is based on the Landau-Lifshitz-Gilbert equation. A Gaussian white noise is later added into the dynamic process to include the thermal effects. The interface requires a closer inspection of the magneto-electric effects. Thus, we construct a 2-D ladder model to describe the behavior of the magnetic spins and the electric pseudo-spins with different magneto-electric couplings.

• OSTI ID: 22492724
• Journal Information: Journal of Applied Physics, Vol. 118, Issue 12; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ELECTRIC FIELDS
EQUATIONS
INTERFACES
NOISE
SPIN
TEMPERATURE DEPENDENCE