Magnetotransport studies of EuFe$_2$As$_2$: the influence of the Eu$^{2+}$ magnetic moments

Details Magnetotransport studies of EuFe$_2$As$_2$: the influence of the Eu$^{2+}$ magnetic moments Magnetotransport studies of EuFe$_2$As$_2$: the influence of the Eu$^{2+}$ magnetic moments

2010-08-12

arxiv.org/abs/1008.2029v2

J. Phys. Soc. Jpn. 79, 103706 (2010)

Physics

Condensed Matter

Superconductivity

Published in J. Phys. Soc. Jpn

Scientific paper

10.1143/JPSJ.79.103706

We report resistivity $\rho$ and Hall effect measurements on EuFe$_2$As$_2$ at ambient pressure and 28 kbar and magnetization measurements at ambient pressure. We analyze the temperature and magnetic-field dependence of $\rho$ and the Hall effect using a molecular-field theory for magnetoresistance and an empirical formula for the anomalous Hall effect and find that electron scattering due to the Eu$^{2+}$ local moments plays only a minor role in determining electronic transport properties of EuFe$_2$As$_2$.

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