期刊
PHYSICAL REVIEW LETTERS
卷 92, 期 6, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.92.067001
关键词
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Cantilever magnetometry has been used to measure the upper critical magnetic field H-c2 of the quasi-one-dimensional molecular organic superconductor (TMTSF)(2)ClO4. From simultaneous resistivity and torque magnetization experiments conducted under precise field alignment, H-c2 at low temperature is shown to reach 5 T, nearly twice the Pauli paramagnetic limit imposed on spin singlet superconductors. These results constitute the first thermodynamic evidence for a large H-c2 in this system and provide support for spin triplet pairing in this unconventional superconductor.
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