We analyze the behavior of the superconducting-fluctuations contribution to diamagnetism and conductivity in a model system having current-current interactions. We show that in proximity to a Mott-insulating phase, one recovers an overall suppression of the fluctuating contribution to the conductivity with respect to diamagnetism, in close analogy with recent experiments on the underdoped phase of cuprate superconductors. © 2012 American Physical Society.
Current-current Fermi-liquid corrections to the superconducting fluctuations on conductivity and diamagnetism / Fanfarillo, Laura; Benfatto, Lara; Castellani, Claudio. - In: PHYSICAL REVIEW. B, CONDENSED MATTER AND MATERIALS PHYSICS. - ISSN 1098-0121. - STAMPA. - 85:2(2012), pp. 024507-1-024507-5. [10.1103/physrevb.85.024507]
Current-current Fermi-liquid corrections to the superconducting fluctuations on conductivity and diamagnetism
FANFARILLO, LAURA;BENFATTO, Lara;CASTELLANI, Claudio
2012
Abstract
We analyze the behavior of the superconducting-fluctuations contribution to diamagnetism and conductivity in a model system having current-current interactions. We show that in proximity to a Mott-insulating phase, one recovers an overall suppression of the fluctuating contribution to the conductivity with respect to diamagnetism, in close analogy with recent experiments on the underdoped phase of cuprate superconductors. © 2012 American Physical Society.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
