Mobility Analysis of FeTe Thin Films
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概要
- 論文の詳細を見る
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.
- 2011-02-15
著者
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Ichinose Ataru
Central Research Institute Of Electric Power Industry
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Tsukada Ichiro
Central Research Institute Of Electric Power Industry
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Imai Yoshinori
Department Of Basic Science The University Of Tokyo
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Maeda Atsutaka
Department Of Applied Physics The University Of Tokyo
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HANAWA Masafumi
Central Research Institute of Electric Power Industry
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KOMIYA Seiki
Central Research Institute of Electric Power Industry
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Akiike Takanori
Department Of Basic Science The University Of Tokyo
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