Zero resistivity above 150K in HgBa2Ca2Cu 3O8+δ at high pressure

Nao Takeshita, Ayako Yamamoto, Akira Iyo, Hiroshi Eisaki

研究成果: Article査読

53 被引用数 (Scopus)

抄録

We measured the electrical resistivity of a HgBa2Ca 2Cu3O8+δ (Hg-1223) polycrystalline sample under high pressure. Owing to the improved sample quality and the nearly hydrostatic pressure, we successfully observed zero resistivity, which is the unambiguous signature of superconductivity, up to the unprecedented temperature of 153.0K at 15 GPa. This temperature surpasses the previous records by more than 10 K. Referring to the experimental results, we established the exact pressure (P) vs superconducting transition temperature (Tc) relationship. Tc increases with P up to 15 GPa, suggesting the possibility of further enhancement of Tc at higher pressures.

本文言語English
論文番号023711
ジャーナルjournal of the physical society of japan
82
2
DOI
出版ステータスPublished - 2013 2
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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