Paramagnons, weak disorder and positive giant magnetoresistance

George Kastrinakis

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arXiv · cond-mat/9509073

Paramagnons, weak disorder and positive giant magnetoresistance

George Kastrinakis

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Abstract

At low temperature and for finite spin scattering in a weakly disordered metal, for a certain value, predicted from our theory, of the material-dependent paramagnon interaction, the total conductivity becomes highly sensitive to the orbital effects of a finite magnetic field. As a consequence, positive giant magnetoresistance and giant corrections to the Hall coefficient arise. We obtain very good agreement between this theory and recent positive giant magnetoresistance experiments, while making specific material-dependent predictions.

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George Kastrinakis. 1997-10-26. Paramagnons, weak disorder and positive giant magnetoresistance. https://arxiv.org/abs/cond-mat/9509073

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