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Title: Spin-phonon coupling in antiferromagnetic nickel oxide

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.5009598· OSTI ID:1470129

We report the results of ultraviolet Raman spectroscopy of NiO, which allowed us to determine the spin-phonon coupling coefficients in this important antiferromagnetic material. The use of the second-order phonon scattering and ultraviolet laser excitation (λ = 325 nm) was essential for overcoming the problem of the optical selection rules and dominance of the two-magnon band in the visible Raman spectrum of NiO. We established that the spins of Ni atoms interact more strongly with the longitudinal than transverse optical phonons and produce opposite effects on the phonon energies. The peculiarities of the spin-phonon coupling are consistent with the trends given by density functional theory. Lastly, the obtained results shed light on the nature of the spin-phonon coupling in antiferromagnetic insulators and can help in developing spintronic devices.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012670
OSTI ID:
1470129
Alternate ID(s):
OSTI ID: 1414606
Journal Information:
Applied Physics Letters, Vol. 111, Issue 25; Related Information: SHINES partners with University of California, Riverside (lead); Arizona State University; Colorado State University; Johns Hopkins University; University of California Irvine; University of California Los Angeles; University of Texas at Austin; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 86 works
Citation information provided by
Web of Science

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Cited By (8)

Structural, optical, and electrical properties of unintentionally doped NiO layers grown on MgO by plasma-assisted molecular beam epitaxy journal May 2018
Near-ultraviolet Raman and micro-Raman analysis of electronic materials journal December 2018
Spin-phonon coupling in melanothallite Cu 2 OCl 2 journal November 2018
Lattice dynamical properties of antiferromagnetic MnO, CoO, and NiO, and the lattice thermal conductivity of NiO journal October 2019
Magnetic dynamics and spin-phonon coupling in the antiferromagnet Ni 2 NbBO 6 journal September 2018
Structural, optical, and electrical properties of unintentionally doped NiO layers grown on MgO by plasma-assisted molecular beam epitaxy text January 2020
Spin-phonon interaction in yttrium iron garnet journal July 2021
Signatures of magnetostriction and spin-phonon coupling in magnetoelectric hexagonal 15R-BaMnO3 text January 2020

Figures / Tables (4)