Abstract
Among other indications, the anomalous behavior of the specific heat [1] and the NMR-relaxation rate [2] in the heavy-electron superconductor UBe13 have been interpreted as evidence that superconductivity in this compound is of unconventional nature. Inspired by the analogy of the behavior of these properties to those of superfluid He3, it has been proposed that the superconducting state is an axial [1] or polar [2] spin-triplet state, respectively. However, the identification of the proper symmetry of the superconducting order parameter is still an open problem.
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References
Ott, H.R., H. Rudigier, T.M. Rice, K. Ueda, Z. Fisk, and J.L. Smith: 1984, ‘p-Wave Superconductivity in UBe13’. Phys. Rev. Lett. 52, 1915.
MacLaughlin, D.E., C. Tien, W.G. Clark, M.D. Lan, Z. Fisk, J.L. Smith, and H.R. Ott: 1984, ‘Nuclear Magnetic resonance and heavy fermion superconductivity in (U, Th)Be13’. Phys. Rev. Lett. 53, 1833.
Wollman, D.A., D.J. Van Harlingen, W.C. Lee, D.M. Ginsberg, and A.J. Leggett: 1993, ‘Experimental Determination of the Superconducting Pairing State in YBCO from the Phase Coherence of YBCO-Pb dc SQUIDs’. Phys. Rev. Lett. 71, 2134–2137.
Brawner, D.A. and H.R. Ott: 1994, ‘Evidence for an unconventional superconducting order parameter in YBa2Cu3O6. 9’. Phys. Rev. B 50, 6530–6533.
Smith, J.L., Z. Fisk, J.O. Willis, B. Batlogg and H.R. Ott: 1984, ‘Impurities in the heavy-fermion superconductor UBe13’. J. Appl. Phys. 55, 1996.
Pals, J.A. and L.H.J. Graat: 1976, ‘The simultaneous occurrence of Josephson effects and series resistance in Nb-U6Fe point contacts’. Phys. Lett A 56A, 487–488.
Ambegaokar, V. and A. Baratoff: 1963, ‘Tunnelling Between Superconductors’. Phys. Rev. Lett. 10, 486.
Hendriks, J.W., H.R. Ott, J.H.M. Stoelinga and P. Wyder: 1977, ‘Far-infrared absorption of superconducting films with spatially varying order parameter’. Solid State Commun. 21, 555–559.
Han, S., K.W. Ng, E.L. Wolf, H.F. Braun, L. Tanner, Z. Fisk, J.L. Smith, and M.R. Beasley: 1985, ‘Anomalous s-wave proximity-induced Josephson effects in UBe13, CeCu2Si2, and LaBe13: a new probe of heavy-fermion superconductivity’. Phys. Rev. B 32, 7567–7570.
Han, S., K.W. Ng, E.L. Wolf, A. Millis, J.L. Smith, and Z. Fisk: 1986, ‘Observation of negative s-wave proximity effect in superconducting UBe13’. Phys. Rev. Lett. 57, 238–241.
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© 1999 Springer Science+Business Media Dordrecht
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Wälti, C., Ott, H.R. (1999). Tunneling Spectroscopy of the Heavy Electron Superconductor UBe13 . In: Ausloos, M., Kruchinin, S. (eds) Symmetry and Pairing in Superconductors. NATO Science Series, vol 63. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4834-4_2
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DOI: https://doi.org/10.1007/978-94-011-4834-4_2
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