Extremely large magnetoresistance in the nonmagnetic metal PdCoO2

Extremely large magnetoresistance is realized in the nonmagnetic layered metal PdCoO(2). 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 [11[over ¯]0] direction. Fur...

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Published in:Physical review letters 2013-08, Vol.111 (5), p.056601-056601
Main Authors: Takatsu, Hiroshi, Ishikawa, Jun J, Yonezawa, Shingo, Yoshino, Harukazu, Shishidou, Tatsuya, Oguchi, Tamio, Murata, Keizo, Maeno, Yoshiteru
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container_issue 5
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container_title Physical review letters
container_volume 111
creator Takatsu, Hiroshi
Ishikawa, Jun J
Yonezawa, Shingo
Yoshino, Harukazu
Shishidou, Tatsuya
Oguchi, Tamio
Murata, Keizo
Maeno, Yoshiteru
description Extremely large magnetoresistance is realized in the nonmagnetic layered metal PdCoO(2). 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 [11[over ¯]0] 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.
doi_str_mv 10.1103/PhysRevLett.111.056601
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title Extremely large magnetoresistance in the nonmagnetic metal PdCoO2
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