Search for the chiral superconducting state in Sr2RuO4–Ru eutectic

Sr2RuO4 has become one of the most intensively studied transition metal oxides displaying unconventional superconductivity (Tc=1.5 K). It is known that its eutectic system Sr2RuO4–Ru shows interface superconductivity with an enhanced onset of ∼3 K. It is predicted that in the 3-K phase, a second tra...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2003-05, Vol.388-389, p.501-502
Main Authors: Yoshioka, Masaki, Yaguchi, Hiroshi, Wada, Masahiko, Maeno, Yoshiteru
Format: Article
Language:English
Subjects:
Chiral state
SQUID
Sr2RuO4
Sr2RuO4–Ru eutectic
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Summary:Sr2RuO4 has become one of the most intensively studied transition metal oxides displaying unconventional superconductivity (Tc=1.5 K). It is known that its eutectic system Sr2RuO4–Ru shows interface superconductivity with an enhanced onset of ∼3 K. It is predicted that in the 3-K phase, a second transition to a chiral state occurs at a temperature between 1.5 and 3 K. The second transition is thought to be observable by ac-susceptibility measurements. We report the low-frequency ac-susceptibility of Sr2RuO4–Ru eutectic measured using a SQUID ac magnetometer.
ISSN:0921-4534
1873-2143
DOI:10.1016/S0921-4534(02)02523-6