Colossal magnetoresistance by avoiding a ferromagnetic state in the Mott system Ca3Ru2O7.

Abstract

Transport and magnetic studies of Ca3Ru2O7 for temperatures ranging from 0.4 to 56 K and magnetic fields B up to 45 T lead to strikingly different behavior when the field is applied along the different crystal axes. A ferromagnetic (FM) state with full spin polarization is achieved for the B//a axis, but colossal magnetoresistance is realized only for the B… (More)

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@article{Lin2005ColossalMB, title={Colossal magnetoresistance by avoiding a ferromagnetic state in the Mott system Ca3Ru2O7.}, author={Xiaoqi Lin and Z. X. Zhou and Vikram D. Durairaj and P. G. Schlottmann and G. Cao}, journal={Physical review letters}, year={2005}, volume={95 1}, pages={017203} }