Nonmonotonic pressure dependence of the lattice parameter a in the quasi-one-dimensional superconductor Pr2Ba4Cu7O15−δ

Haruka Taniguchi, Yuya Nakarokkaku, Riku Takahashi, Masatoshi Murakami, Atsuko Nakayama, Michiaki Matsukawa, Satoshi Nakano, Makoto Hagiwara, Takahiko Sasaki

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Abstract

In the quasi-one-dimensional superconductor, Pr2Ba4Cu7O15−δ, we found that the lattice parameter, a increased against pressure, starting at 2.0 GPa at approximately 300 K. This result suggests that the two-dimensional inter-conducting-chain interaction along the a axis is most enhanced at approximately 2.0 GPa. To discuss the dimensionality, we also measured the resistance under magnetic fields up to 14 T, because magneto-resistance is induced when a system changes from one-dimensional to two-dimensional.

Original languageEnglish
Article number015001
Journaljournal of the physical society of japan
Volume90
Issue number1
DOIs
Publication statusPublished - 2021 Jan 15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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