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Title: Anisotropy of the Upper Critical Field in (TMTSF){sub 2}PF{sub 6}

Abstract

The temperature dependence of the upper critical magnetic field H{sub c2}(T) in the quasi-one-dimensional molecular superconductor (TMTSF){sub 2}PF{sub 6} was determined via resistivity, for the intrachain ({bold a}), interchain ({bold b}), and interplane ({bold c}{sup {asterisk}}) directions. For {ital H} along {bold a} and {bold b}, H{sub c2}(T) exhibits pronounced positive curvature, with no sign of saturation to 0.1K. A novel anisotropy inversion is observed, wherein H{sup b}{sub c2} grows larger than H{sup a}{sub c2} and exceeds the paramagnetic limit by more than 200{percent}. The anomalous shape of H{sub c2}(T) is consistent with recent predictions of unconventional behavior in anisotropic superconductors, including the possibility of triplet pairing and reentrant superconductivity in very high field. {copyright} {ital 1997} {ital The American Physical Society}

Authors:
;  [1]; ;  [2]
  1. Departments of Physics and Chemistry, State University of New York, Buffalo, New York 14260 (United States)
  2. Department of Physics, Princeton University, Princeton, New Jersey 08545 (United States)
Publication Date:
OSTI Identifier:
496817
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 78; Journal Issue: 18; Other Information: PBD: May 1997
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ORGANIC SUPERCONDUCTORS; CRITICAL FIELD; TEMPERATURE DEPENDENCE; ANISOTROPY; PHASE DIAGRAMS; ELECTRIC CONDUCTIVITY; MAGNETIC FIELDS

Citation Formats

Lee, I, Naughton, M, Danner, G, and Chaikin, P. Anisotropy of the Upper Critical Field in (TMTSF){sub 2}PF{sub 6}. United States: N. p., 1997. Web. doi:10.1103/PhysRevLett.78.3555.
Lee, I, Naughton, M, Danner, G, & Chaikin, P. Anisotropy of the Upper Critical Field in (TMTSF){sub 2}PF{sub 6}. United States. doi:10.1103/PhysRevLett.78.3555.
Lee, I, Naughton, M, Danner, G, and Chaikin, P. Thu . "Anisotropy of the Upper Critical Field in (TMTSF){sub 2}PF{sub 6}". United States. doi:10.1103/PhysRevLett.78.3555.
@article{osti_496817,
title = {Anisotropy of the Upper Critical Field in (TMTSF){sub 2}PF{sub 6}},
author = {Lee, I and Naughton, M and Danner, G and Chaikin, P},
abstractNote = {The temperature dependence of the upper critical magnetic field H{sub c2}(T) in the quasi-one-dimensional molecular superconductor (TMTSF){sub 2}PF{sub 6} was determined via resistivity, for the intrachain ({bold a}), interchain ({bold b}), and interplane ({bold c}{sup {asterisk}}) directions. For {ital H} along {bold a} and {bold b}, H{sub c2}(T) exhibits pronounced positive curvature, with no sign of saturation to 0.1K. A novel anisotropy inversion is observed, wherein H{sup b}{sub c2} grows larger than H{sup a}{sub c2} and exceeds the paramagnetic limit by more than 200{percent}. The anomalous shape of H{sub c2}(T) is consistent with recent predictions of unconventional behavior in anisotropic superconductors, including the possibility of triplet pairing and reentrant superconductivity in very high field. {copyright} {ital 1997} {ital The American Physical Society}},
doi = {10.1103/PhysRevLett.78.3555},
journal = {Physical Review Letters},
number = 18,
volume = 78,
place = {United States},
year = {1997},
month = {5}
}