Unconventional superconductivity in PuCoGa5

N. J. Curro (), T. Caldwell, E. D. Bauer, L. A. Morales, M. J. Graf, Y. Bang, A. V. Balatsky, J. D. Thompson and J. L. Sarrao
Additional contact information
N. J. Curro: Los Alamos National Laboratory
T. Caldwell: Los Alamos National Laboratory
E. D. Bauer: Los Alamos National Laboratory
L. A. Morales: Los Alamos National Laboratory
M. J. Graf: Los Alamos National Laboratory
Y. Bang: Chonnam National University
A. V. Balatsky: Los Alamos National Laboratory
J. D. Thompson: Los Alamos National Laboratory
J. L. Sarrao: Los Alamos National Laboratory

Nature, 2005, vol. 434, issue 7033, 622-625

Abstract: A superconductor with a difference Since the discovery of the plutonium-based superconductor PuCoGa5 a few years ago, the burning question was whether it was a common-or-garden BCS superconductor or an unconventional one, mediated by magnetic fluctuations. The answer is that it has an exotic mechanism, with ‘f’ electrons in the Pu part of the molecule providing the superconductivity, not the ‘CoGa5’ that would be more likely to stick to the familiar Bardeen–Cooper–Schrieffer mechanism. One upshot of this finding will be more speculation on the nature of other materials that might possess this novel form of superconductivity.

Date: 2005
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DOI: 10.1038/nature03428

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