Mobility analysis of FeTe thin films

Ichiro Tsukada, Masafumi Hanawa, Seiki Komiya, Ataru Ichinose, Takanori Akiike, Yoshinori Imai, Atsutaka Maeda

研究成果: Article査読

13 被引用数 (Scopus)

抄録

The Hall effect is investigated in detail for nonsuperconducting and superconducting FeTe thin films. The Hall coefficient commonly exhibits a sign reversal from positive in a high-temperature paramagnetic state to negative in a low-temperature antiferromagnetic state. Phenomenological analysis by a simple two-band Drude model indicates that hole mobility is significantly suppressed in the antiferromagnetic state. When suppression of the hole mobility is insufficient, superconductivity shows up in FeTe. This result strongly suggests that the itinerancy in both hole and electron channels is the essential factor for the occurrence of superconductivity in iron chalcogenide superconductors.

本文言語English
論文番号023712
ジャーナルjournal of the physical society of japan
80
2
DOI
出版ステータスPublished - 2011 2月
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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