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강상관계 물질 연구단
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Hybridization and Decay of Magnetic Excitations in Two-Dimensional Triangular Lattice Antiferromagnets

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Title
Hybridization and Decay of Magnetic Excitations in Two-Dimensional Triangular Lattice Antiferromagnets
Author(s)
Taehun Kim; Kisoo Par; Jonathan C. Leiner; Je-Geun Park
Publication Date
2019-08
Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, v.88, no.8, pp.081003 -
Publisher
PHYSICAL SOC JAPAN
Abstract
Elementary quasiparticles in solids such as phonons and magnons occasionally have nontrivial interactions between them, as well as among themselves. As a result, their energy eigenvalues are renormalized, the quasiparticles spontaneously decay into a multi-particle continuum state, or they are hybridized with each other when their energies are close. As discussed in this review, such anomalous features can appear dominantly in quantum magnets but are not, a priori, negligible for magnetic systems with larger spin values and noncollinear magnetic structures. We review the unconventional magnetic excitations in two-dimensional triangular lattice antiferromagnets and discuss their implications on related issues. ©2019 The Physical Society of Japan
URI
https://pr.ibs.re.kr/handle/8788114/6519
ISSN
0031-9015
Appears in Collections:
Center for Correlated Electron Systems(강상관계 물질 연구단) > Journal Papers (저널논문)
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