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arXiv · 2010.00445

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

Lizardo H. C. M. Nunes·M. S. Figueira·E. V. L. de Mello
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Abstract

The pressure induced superconducting phase diagram is calculated for an extension of the periodic Anderson model (PAM) in the $ U = \infty $ 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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Lizardo H. C. M. Nunes, M. S. Figueira, E. V. L. de Mello. 2020-09-25. Superconductor-insulator transition induced by pressure within the X-boson approach. https://doi.org/10.1016/j.physc.2004.02.160

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