Robust upward dispersion of the neutron spin resonance in the heavy fermion superconductor Ce1−xYbxCoIn5

Yu Song; John Van Dyke; I. K. Lum; B. D. White; Sooyoung Jang; Duygu Yazici; L. Shu; A. Schneidewind; Petr Čermák; Y. Qiu; M. B. Maple; Dirk K. Morr; Pengcheng Dai

doi:10.1038/ncomms12774

Nature Communications (Sep 2016)

Robust upward dispersion of the neutron spin resonance in the heavy fermion superconductor Ce1−xYbxCoIn5

Yu Song,
John Van Dyke,
I. K. Lum,
B. D. White,
Sooyoung Jang,
Duygu Yazici,
L. Shu,
A. Schneidewind,
Petr Čermák,
Y. Qiu,
M. B. Maple,
Dirk K. Morr,
Pengcheng Dai

Affiliations

Yu Song: Department of Physics and Astronomy, Rice University
John Van Dyke: Department of Physics, University of Illinois at Chicago
I. K. Lum: Materials Science and Engineering Program, University of California, San Diego
B. D. White: Department of Physics, University of California, San Diego
Sooyoung Jang: Materials Science and Engineering Program, University of California, San Diego
Duygu Yazici: Materials Science and Engineering Program, University of California, San Diego
L. Shu: Department of Physics, State Key Laboratory of Surface Physics, Fudan University
A. Schneidewind: Jülich Center for Neutron Science JCNS, Forschungszentrum Jülich GmbH, Outstation at MLZ
Petr Čermák: Jülich Center for Neutron Science JCNS, Forschungszentrum Jülich GmbH, Outstation at MLZ
Y. Qiu: NIST Center for Neutron Research, National Institute of Standard and Technology
M. B. Maple: Materials Science and Engineering Program, University of California, San Diego
Dirk K. Morr: Department of Physics, University of Illinois at Chicago
Pengcheng Dai: Department of Physics and Astronomy, Rice University

DOI: https://doi.org/10.1038/ncomms12774
Journal volume & issue: Vol. 7, no. 1
pp. 1 – 10

Abstract

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The mechanism of collective magnetic excitations in unconventional superconductors remains controversial. Here, Song et al. show neutron spin resonance in a heavy fermion superconductor Ce1-xYbxCoIn5, implying magnon-like excitation rather than spin-exciton type.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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