Zero-resistance superconducting phase in BaFe2 As2 under high pressure

Fumihiro Ishikawa, Naoya Eguchi, Michihiro Kodama, Koji Fujimaki, Mari Einaga, Ayako Ohmura, Atsuko Nakayama, Akihiro Mitsuda, Yuh Yamada

研究成果: ジャーナルへの寄稿学術誌査読

55 被引用数 (Scopus)

抄録

A single-crystalline sample of BaFe2 As2 was prepared by high-pressure synthesis, and temperature dependence of resistivity was measured under high pressures of up to 9.0 GPa. Application of 3.0 GPa pressure suppresses the spin-density wave transition and induces superconductivity with the zero resistance state at a superconducting transition temperature Tc =35 K. Tc decreases monotonically with increasing pressure. The appearance of the superconductivity and the disappearance of the anomaly due to the spin-density wave transition occur simultaneously at a pressure of 3.0 GPa. At 3.0 GPa, a superconducting transition is induced in BaFe2 As2; however, the superconductivity is suppressed at higher pressure.

本文言語英語
論文番号172506
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
79
17
DOI
出版ステータス出版済み - 5月 1 2009

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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