Abstract
Extremely large magnetoresistance is realized in the nonmagnetic layered metal . In spite of a highly conducting metallic behavior with a simple quasi-two-dimensional hexagonal Fermi surface, the interlayer resistance reaches up to 35 000% for the field along the direction. Furthermore, the temperature dependence of the resistance becomes nonmetallic for this field direction, while it remains metallic for fields along the [110] direction. Such severe and anisotropic destruction of the interlayer coherence by a magnetic field on a simple Fermi surface is ascribable to orbital motion of carriers on the Fermi surface driven by the Lorentz force, but seems to have been largely overlooked until now.
- Received 7 March 2013
DOI:https://doi.org/10.1103/PhysRevLett.111.056601
© 2013 American Physical Society
Synopsis
The Solution
Published 1 August 2013
Researchers have discovered a new kind of large magnetoresistive effect in a highly conducting layered oxide.
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