Nontrivial Metallic State Of Mos2
PHYSICAL REVIEW B(2018)
摘要
The electrical conductivity and Raman spectroscopy measurements have been performed on MoS2 at high pressures up to 80 GPa and variable temperatures down to 5 K. We find that the temperature dependence of the resistance in a mixed phase has an anomaly (a hump) which shifts with pressure to higher temperature. Concomitantly, a different Raman phonon mode appears in the mixed state suggesting that the electrical resistance anomaly may be related to a structural transformation. We suggest that this anomalous behavior is due to a charge-density wave state, the presence of which is indicative for an emergence of superconductivity at higher pressures.
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关键词
Superconductivity
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