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Static and dynamic transport properties of a Kondo lattice model

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2 Author(s)
Ogasahara, Akira ; Department of Materials Engineering Science, Osaka University, Machikaneyama 1-3, Toyonaka, Osaka 560-8531, Japan ; Kusakabe, Koichi

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Electron transport is investigated numerically in a Kondo lattice model with spin couplings. In order to investigate the effects of a dynamic change of the magnetic ordering on the transport property, a system under a time-dependent magnetic field is considered. Obtained are interesting results in which a motion of conduction electron changes its behavior qualitatively depending on the speed of field change. In an almost adiabatic case, the motion strongly depends on the magnetic field. However, in nonadiabatic cases, the dependence disappears as the sweeping rate increases, which reflects a suppression of magnetization reversal in the localized spin system.

Published in:

Journal of Applied Physics  (Volume:97 ,  Issue: 10 )