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Intertwined orders in heavy-fermion superconductor CeCoIn5.

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Bibliographic Details
Title: Intertwined orders in heavy-fermion superconductor CeCoIn5.
Authors: Kim, D. Y.1, Lin, SH.-Z.1, Weickert, F.1, Kenzelmann, M.2, Bauer, E. D.1, Ronning, F.1, Thompson, J. D.1, Movshovich, R.1
Source: International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics. 7/10/2018, Vol. 32 Issue 17, p-1. 8p. 1 Diagram, 2 Graphs.
Subjects: Superconductors, Cerium, Heavy fermion superconductors, Superconductivity, Thermal conductivity, Cobalt, Indium
Abstract: We use thermal conductivity to study a unique state in the high field corner of the superconducting phase of CeCoIn5. The spin-density-wave (SDW) magnetic order in this high field low temperature (HFLT) phase requires superconductivity for its very existence, and both magnetism and superconductivity disappear together at superconducting critical field H. We measured thermal conductivity of CeCoIn5 in a rotating magnetic field to study the nature of the HFLT phase. Our measurements reveal the presence of an additional order inside the HFLT phase that is intimately intertwined with the superconducting -wave and the SDW orders, which we identify as a superconducting -wave pair-density-wave (PDW). CeCoIn5 displays a hierarchy of interactions within the HFLT phase, where spin-orbit coupling orients the SDW, which then determines orientation of the secondary PDW component. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:We use thermal conductivity to study a unique state in the high field corner of the superconducting phase of CeCoIn5. The spin-density-wave (SDW) magnetic order in this high field low temperature (HFLT) phase requires superconductivity for its very existence, and both magnetism and superconductivity disappear together at superconducting critical field H. We measured thermal conductivity of CeCoIn5 in a rotating magnetic field to study the nature of the HFLT phase. Our measurements reveal the presence of an additional order inside the HFLT phase that is intimately intertwined with the superconducting -wave and the SDW orders, which we identify as a superconducting -wave pair-density-wave (PDW). CeCoIn5 displays a hierarchy of interactions within the HFLT phase, where spin-orbit coupling orients the SDW, which then determines orientation of the secondary PDW component. [ABSTRACT FROM AUTHOR]
ISSN:02179792
DOI:10.1142/S0217979218400192