Field induced spontaneous quasiparticle decay and renormalization of quasiparticle dispersion in a quantum antiferromagnet

Tao Hong; Y. Qiu; M. Matsumoto; D. A. Tennant; K. Coester; K. P. Schmidt; F. F. Awwadi; M. M. Turnbull; H. Agrawal; A. L. Chernyshev

doi:10.1038/ncomms15148

Nature Communications (May 2017)

Field induced spontaneous quasiparticle decay and renormalization of quasiparticle dispersion in a quantum antiferromagnet

Tao Hong,
Y. Qiu,
M. Matsumoto,
D. A. Tennant,
K. Coester,
K. P. Schmidt,
F. F. Awwadi,
M. M. Turnbull,
H. Agrawal,
A. L. Chernyshev

Affiliations

Tao Hong: Quantum Condensed Matter Division, Oak Ridge National Laboratory
Y. Qiu: National Institute of Standards and Technology
M. Matsumoto: Department of Physics, Shizuoka University
D. A. Tennant: Quantum Condensed Matter Division, Oak Ridge National Laboratory
K. Coester: Lehrstuhl für Theoretische Physik I, TU Dortmund
K. P. Schmidt: Lehrstuhl für Theoretische Physik I
F. F. Awwadi: Department of Chemistry, The University of Jordan
M. M. Turnbull: Carlson School of Chemistry and Biochemistry, Clark University
H. Agrawal: Instrument and Source Division, Oak Ridge National Laboratory
A. L. Chernyshev: Department of Physics and Astronomy, University of California

DOI: https://doi.org/10.1038/ncomms15148
Journal volume & issue: Vol. 8, no. 1
pp. 1 – 8

Abstract

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Spontaneous magnon decay in canted antiferromagnets has been theoretically investigated extensively, but experimental evidence is limited. Here the authors study the spin ½ antiferromagnet DLCB via neutron scattering, revealing field-induced spontaneous magnon decay associated with three-magnon interactions.

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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