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Phonon dynamics in the chiral Kitaev spin liquid

Journal Article · · Physical Review. B
Here, we investigate the effect of a magnetic field on the extended Kitaev spin-liquid state through phonon dynamics. Using a constrained fermionic self-consistent mean field method, we analyze the quantum spin liquid (QSL) ground state for the extended Kitaev model with both the Zeeman term and the perturbative three-spin interaction term 𝜅. Our results demonstrate the dependence of the stability of the Kitaev QSL state on the field direction, consistent with findings in the literature. Additionally, we calculate the phonon dynamics for acoustic phonons coupled to the Majorana fermion excitations of the Kitaev spin-liquid state, discussing the temperature and field evolution of these quantities.
Research Organization:
Univ. of Minnesota, Minneapolis, MN (United States); University of Minnesota, Minneapolis, MN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0018056
OSTI ID:
3004503
Alternate ID(s):
OSTI ID: 2447957
OSTI ID: 2473515
Journal Information:
Physical Review. B, Journal Name: Physical Review. B Journal Issue: 9 Vol. 110; ISSN 2469-9969; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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