Multiorbital Effects on the Transport and the Superconducting Fluctuations in LiFeAs

F. Rullier-Albenque, D. Colson, A. Forget, and H. Alloul
Phys. Rev. Lett. 109, 187005 – Published 2 November 2012; Erratum Phys. Rev. Lett. 113, 209901 (2014)
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Abstract

The resistivity, Hall effect, and transverse magnetoresistance have been measured in low residual resistivity single crystals of LiFeAs. A comparison with angle resolved photoemission spectroscopy and quantum oscillation data implies that four carrier bands unevenly contribute to the transport. However the scattering rates of the carriers all display the T2 behavior expected for a Fermi liquid. Near Tc low field deviations of the magnetoresistance with respect to a H2 variation permit us to extract the superconducting fluctuation contribution to the conductivity. Though below Tc the anisotropy of superconductivity is rather small, the superconducting fluctuation displays a quasi-ideal two-dimensional behavior which persists up to 1.4 Tc. These results call for a refined theoretical understanding of the multiband behavior of superconductivity in this pnictide.

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  • Received 20 April 2012

DOI:https://doi.org/10.1103/PhysRevLett.109.187005

© 2012 American Physical Society

Erratum

Erratum: Multiorbital Effects on the Transport and the Superconducting Fluctuations in LiFeAs [Phys. Rev. Lett. 109, 187005 (2012)]

F. Rullier-Albenque, D. Colson, A. Forget, and H. Alloul
Phys. Rev. Lett. 113, 209901 (2014)

Authors & Affiliations

F. Rullier-Albenque1,*, D. Colson1, A. Forget1, and H. Alloul2

  • 1Service de Physique de l’Etat Condensé, Orme des Merisiers, CEA Saclay (CNRS URA 2464), 91191 Gif sur Yvette cedex, France
  • 2Laboratoire de Physique des Solides, UMR CNRS 8502, Université Paris Sud, 91405 Orsay, France

  • *florence.albenque-rullier@cea.fr

Comments & Replies

Comment on “Multiorbital Effects on the Transport and the Superconducting Fluctuations in LiFeAs”

A. Ramos-Álvarez, J. Mosqueira, and F. Vidal
Phys. Rev. Lett. 115, 139701 (2015)

Rullier-Albenque et al. Reply:

F. Rullier-Albenque, D. Colson, A. Forget, and H. Alloul
Phys. Rev. Lett. 115, 139702 (2015)

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Vol. 109, Iss. 18 — 2 November 2012

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