Colossal Electroresistance and Colossal Magnetoresistance in Spinel Multiferroic CdCr2S4

Details Colossal Electroresistance and Colossal Magnetoresistance in Spinel Multiferroic CdCr2S4 Colossal Electroresistance and Colossal Magnetoresistance in Spinel Multiferroic CdCr2S4

2010-03-04

arxiv.org/abs/1003.0960v2

Physics

Condensed Matter

Strongly Correlated Electrons

3 pages, 4 figures, accepted by Applied Physics Letters

Scientific paper

Colossal magnetoresistance (CMR) and electroresistance (CER) induced by the electric field in spinel multiferroic CdCr2S4 are reported. It is found that a metal-insulator transition (MIT) in CdCr2S4 is triggered by the electrical field. In magnetic fields, the resistivity of CdCr2S4 responds similarly to that of CMR manganites. Combing previous reports, these findings make CdCr2S4 the unique compound to possess all four properties of the colossal magnetocapacitive (CMC), colossal electrocapacitive (CEC), CER, and CMR. The present results open a new venue for searching new materials to show CMR by tuning electric and magnetic fields.

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