skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Upper critical field in the organic superconductor {beta}{sup "}-(ET){sub 2}SF{sub 5}CH{sub 2}CF{sub 2}SO{sub 3} : possibility of Fulde-Ferrell-Larkin-Ovchinnikov state.

Abstract

We report upper critical-field measurements in the metal-free-all-organic superconductor {beta}{double_prime}-(ET){sub 2}SF{sub 5}CH{sub 2}CF{sub 2}SO{sub 3} obtained from measuring the in-plane penetration depth using the tunnel diode oscillator technique. For magnetic field applied parallel to the conducting planes the low-temperature upper critical fields are found to exceed the Pauli limiting field calculated by using a semiempirical method. Furthermore, we found a signature that could be the phase transition between the superconducting vortex state and the Fulde-Ferrell-Larkin-Ovchinnikov state in the form of a kink just below the upper critical field and only at temperatures below 1.23 K.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
969207
Report Number(s):
ANL/MSD/JA-65415
Journal ID: ISSN 1098-0121; TRN: US201001%%293
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Phys. Rev. B
Additional Journal Information:
Journal Volume: 79; Journal Issue: 2009; Journal ID: ISSN 1098-0121
Country of Publication:
United States
Language:
ENGLISH
Subject:
36 MATERIALS SCIENCE; CRITICAL FIELD; MAGNETIC FIELDS; ORGANIC SUPERCONDUCTORS; OSCILLATORS; PENETRATION DEPTH; TUNNEL DIODES; PHASE TRANSFORMATIONS

Citation Formats

Cho, K., Smith, B. E., Coniglio, W. A., Winter, L. E., Agosta, C. C., Schlueter, J. A., Materials Science Division, and Clark Univ. Upper critical field in the organic superconductor {beta}{sup "}-(ET){sub 2}SF{sub 5}CH{sub 2}CF{sub 2}SO{sub 3} : possibility of Fulde-Ferrell-Larkin-Ovchinnikov state.. United States: N. p., 2009. Web. doi:10.1103/PhysRevB.79.220507.
Cho, K., Smith, B. E., Coniglio, W. A., Winter, L. E., Agosta, C. C., Schlueter, J. A., Materials Science Division, & Clark Univ. Upper critical field in the organic superconductor {beta}{sup "}-(ET){sub 2}SF{sub 5}CH{sub 2}CF{sub 2}SO{sub 3} : possibility of Fulde-Ferrell-Larkin-Ovchinnikov state.. United States. doi:10.1103/PhysRevB.79.220507.
Cho, K., Smith, B. E., Coniglio, W. A., Winter, L. E., Agosta, C. C., Schlueter, J. A., Materials Science Division, and Clark Univ. Thu . "Upper critical field in the organic superconductor {beta}{sup "}-(ET){sub 2}SF{sub 5}CH{sub 2}CF{sub 2}SO{sub 3} : possibility of Fulde-Ferrell-Larkin-Ovchinnikov state.". United States. doi:10.1103/PhysRevB.79.220507.
@article{osti_969207,
title = {Upper critical field in the organic superconductor {beta}{sup "}-(ET){sub 2}SF{sub 5}CH{sub 2}CF{sub 2}SO{sub 3} : possibility of Fulde-Ferrell-Larkin-Ovchinnikov state.},
author = {Cho, K. and Smith, B. E. and Coniglio, W. A. and Winter, L. E. and Agosta, C. C. and Schlueter, J. A. and Materials Science Division and Clark Univ.},
abstractNote = {We report upper critical-field measurements in the metal-free-all-organic superconductor {beta}{double_prime}-(ET){sub 2}SF{sub 5}CH{sub 2}CF{sub 2}SO{sub 3} obtained from measuring the in-plane penetration depth using the tunnel diode oscillator technique. For magnetic field applied parallel to the conducting planes the low-temperature upper critical fields are found to exceed the Pauli limiting field calculated by using a semiempirical method. Furthermore, we found a signature that could be the phase transition between the superconducting vortex state and the Fulde-Ferrell-Larkin-Ovchinnikov state in the form of a kink just below the upper critical field and only at temperatures below 1.23 K.},
doi = {10.1103/PhysRevB.79.220507},
journal = {Phys. Rev. B},
issn = {1098-0121},
number = 2009,
volume = 79,
place = {United States},
year = {2009},
month = {1}
}