Role of domain wall fluctuations in non-Fermi liquid behavior of metamagnets

Details Role of domain wall fluctuations in non-Fermi liquid behavior of metamagnets Role of domain wall fluctuations in non-Fermi liquid behavior of metamagnets

2010-12-13

arxiv.org/abs/1012.2617v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

We study resistivity temperature dependence of a three dimensional metamagnet near the metamagnet phase transition point in the case when magnetic structure tends to split into regions with high and low magnetization. We show that in the case of weak pinning the spin relaxation time of domain wall is much larger than that of the volume spin fluctuations. This opens a temperature range where resistivity temperature dependence is determined by scattering of conducting electrons by the domain wall fluctuations. We show that it leads to quasi-linear low temperature dependence of resistivity.

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