107 research outputs found
Fluctuation Effects in Underdoped Cuprate Superconductors under Magnetic Field
Fluctuation effects in underdoped cuprates under high fields are examined by
trying to fit theoretical results to resistivity and Nernst data in vortex
states. The superconducting (SC) fluctuation in underdoped cuprates includes
not only the ordinary thermal contribution but also a large amount of quantum
dynamical contributions. Together with this, the presence of a SC pseudogap
region T_0-T_{c0} increasing with underdoping is found to be the origin of the
Nernst coefficient becoming anomalously smaller and the in-plane coherence
length {\it apparently} increasing with underdoping.Comment: 4 pages, 4 figure
Comment on "Fluctuation-Driven First-Order Transition in Pauli-Limited -Wave Superconductors"
This is a Comment on a recent Letter (Phys.Rev.Lett.93, 247002 (2004))
written by Dalidovich and Yang. It is pointed out that any Pauli-limited
approach neglecting the vortices is inapplicable to describing the FFLO state
in CeCoIn5.Comment: 1 page, no figure. To appear in Physical Review Letter
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