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APS » Journals » Phys. Rev. B » Volume 71 » Issue 22
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Phys. Rev. B 71, 224502 (2005) [11 pages]

Effects of disorder on coexistence and competition between superconducting and insulating states

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M. V. Mostovoy1,2, F. M. Marchetti3, B. D. Simons3, and P. B. Littlewood3
1Materials Science Center, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
2Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart, Germany
3Cavendish Laboratory, University of Cambridge, Madingley Road, Cambridge CB3 0HE, United Kingdom

Received 20 August 2004; revised 4 February 2005; published 7 June 2005

We study effects of nonmagnetic impurities on the competition between the superconducting and electron-hole pairing. We show that disorder can result in coexistence of these two types of ordering in a uniform state, even when in clean materials they are mutually exclusive.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.71.224502
DOI:
10.1103/PhysRevB.71.224502
PACS:
74.25.Dw, 71.45.Lr, 74.62.Dh
 
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