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Colossal Magnetoresistance in a Mott Insulator via Magnetic Field-Driven Insulator-Metal Transition

M Zhu1, J Peng2, T Zou1

  • 1Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824, USA.

Physical Review Letters
|June 11, 2016
PubMed
Summary

We discovered a new colossal magnetoresistance (CMR) effect in Ti-doped Ca3Ru2O7, where a magnetic field collapses the Mott insulating state. This finding challenges existing theories on magnetic field tuning in Mott systems.

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