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Commensurate and incommensurate spin-density waves in heavy electron systems

Title: Commensurate and incommensurate spin-density waves in heavy electron systems.
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Name(s): Schlottmann, P., author
Type of Resource: text
Genre: Text
Date Issued: 2016-05
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: The nesting of the Fermi surfaces of an electron and a hole pocket separated by a nesting vector Q and the interaction between electrons gives rise to itinerant antiferromagnetism. The order can gradually be suppressed by mismatching the nesting and a quantum critical point (QCP) is obtained as the Neel temperature tends to zero. The transfer of pairs of electrons between the pockets can lead to a superconducting dome above the QCP (if Q is commensurate with the lattice, i.e. equal to G/2). If the vector Q is not commensurate with the lattice there are eight possible phases: commensurate and incommensurate spin and charge density waves and four superconductivity phases, two of them with modulated order parameter of the FFLO type. The renormalization group equations are studied and numerically integrated. A re-entrant SDW phase (either commensurate or incommensurate) is obtained as a function of the mismatch of the Fermi surfaces and the magnitude of vertical bar Q - G/2 vertical bar. (C) 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.
Identifier: FSU_libsubv1_wos_000377962500103 (IID), 10.1063/1.4942549 (DOI)
Keywords: cein3, cerh2si2, fermi-liquid behavior, phase, pressure, Superconductivity
Publication Note: The publisher’s version of record is available at http://www.dx.doi.org/10.1063/1.4942549
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000377962500103
Host Institution: FSU
Is Part Of: Aip Advances.
2158-3226
Issue: iss. 5, vol. 6

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Schlottmann, P. (2016). Commensurate and incommensurate spin-density waves in heavy electron systems. Aip Advances. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000377962500103