Journal
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
Volume 62, Issue 1-2, Pages 59-64Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0022-3697(00)00101-3
Keywords
cuprate series; specific heat; superconductivity
Ask authors/readers for more resources
Evidence on the nature and hole density (p) dependence of the normal state pseudogap is obtained from the electronic Specific heat of several cuprate series, including new data for Bi:2212. The pseudogap energy decreases as E(g)(p) similar to J(1 - p/p(crit)) for p < p(crit) and is zero for p > p(crit). where p(crit) similar to 0.19 is close to optimal T(c). This is correlated with an abrupt crossover from weak to strong superconductivity at p(crit). We conclude that the pseudogap is an intrinsic feature of the normal state density of states that competes with the condensate for low energy spectral weight and is not related to precursor superconducting fluctuations. The linear p-dependencies of the entropy, the superfluid density and the states-non-conserving pseudogap are all interrelated. and appear to reflect strong correlations in the doped Mott insulator. (C) 2000 Elsevier Science Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available