Spin Resistivity in Frustrated Antiferromagnets

Details Spin Resistivity in Frustrated Antiferromagnets Spin Resistivity in Frustrated Antiferromagnets

2010-06-06

arxiv.org/abs/1006.1081v2

Physics

Condensed Matter

Materials Science

Scientific paper

In this paper we study the spin transport in frustrated antiferromagnetic FCC films by Monte Carlo simulation. In the case of Ising spin model, we show that the spin resistivity versus temperature exhibits a discontinuity at the phase transition temperature: an upward jump or a downward fall, depending on how many parallel and antiparallel localized spins interacting with a given itinerant spin. The surface effects as well as the difference of two degenerate states on the resistivity are analyzed. Comparison with non frustrated antiferromagnets is shown to highlight the frustration effect. We also show and discuss the results of the Heisenberg spin model on the same lattice.

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