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Superconductor–insulator transition induced by pressure within the X-boson approach

✍ Scribed by L.H.C.M. Nunes; M.S. Figueira; E.V.L. de Melllo

Book ID: 104082181
Publisher: Elsevier Science
Year: 2004
Tongue: English
Weight: 291 KB
Volume: 408-410
Category: Article
ISSN: 0921-4534
DOI: 10.1016/j.physc.2004.02.160

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✦ Synopsis

The pressure induced superconducting phase diagram is calculated for an extension of the periodic Anderson model (PAM) in the U ¼ 1 limit taking into account the effect of a nearest neighbor attractive interaction between f-electrons. We analyze the role of the chemical potential compared to several plots of the f-band density of states and we also found a superconductor-insulator transition induced by pressure when the chemical potential crosses the hybridization gap.

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