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Josephson effect between UPt$$_3$$ and conventional superconductors under pressure

圧力下で調べたUPt$$_3$$-超伝導体間のジョセフソン効果

郷地 順*; 住山 昭彦*; 山口 明*; 本山 岳*; 木村 憲彰*; 山本 悦嗣 ; 芳賀 芳範 ; 大貫 惇睦

Gochi, Jun*; Sumiyama, Akihiko*; Yamaguchi, Akira*; Motoyama, Gaku*; Kimura, Noriaki*; Yamamoto, Etsuji; Haga, Yoshinori; Onuki, Yoshichika

The Josephson critical current $$I_{rm c}$$ between a single crystal UPt$$_3$$ and conventional superconductors has been measured under pressure. The observation of $$I_{rm c}$$ well above the critical pressure 0.25 GPa, together with a Fraunhofer-like pattern in the magnetic field modulation of $$I_{rm c}$$ indicates that the Josephson effect is allowed in the superconducting state of UPt$$_3$$.

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