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Title: Comprehensive inelastic neutron scattering study of the multiferroic Mn 1 - x Co x WO 4

Here, using high-resolution inelastic neutron scattering, we examine the spin dynamics of Mn 1-xCo xWO 4 in the collinear AF1, the ac-b spiral AF2, and the ac cycloidal AF5 phases. The spin wave excitations are well described by a Heisenberg model with competing long-range exchange interactions (J i up to 12th nearest neighbors) and the single-ion anisotropy K induced by the spin-orbit interaction. Additionally, while the exchange constants are relatively unchanged, the dominant effect of doping is to change the single-ion anisotropy from easy axis (K>0) in the collinear AF1 phase to easy plane (K<0) in the two multiferroic phases.
Authors:
 [1] ; ORCiD logo [2] ;  [3] ; ORCiD logo [2] ; ORCiD logo [2] ;  [4] ;  [4] ;  [4] ;  [5] ; ORCiD logo [2]
  1. Renmin Univ. of China, Beijing (China); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
  4. University of Houston, TX (United States)
  5. University of Houston, TX (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 98; Journal Issue: 21; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1490590
Alternate Identifier(s):
OSTI ID: 1486902

Wang, Jinchen, Fishman, Randy Scott, Qiu, Yiming, Fernandez-Baca, Jaime A., Ehlers, Georg, Liang, K.-C., Wang, Yaqi, Lorenz, Bernd, Chu, C. W., and Ye, Feng. Comprehensive inelastic neutron scattering study of the multiferroic Mn1-xCoxWO4. United States: N. p., Web. doi:10.1103/PhysRevB.98.214425.
Wang, Jinchen, Fishman, Randy Scott, Qiu, Yiming, Fernandez-Baca, Jaime A., Ehlers, Georg, Liang, K.-C., Wang, Yaqi, Lorenz, Bernd, Chu, C. W., & Ye, Feng. Comprehensive inelastic neutron scattering study of the multiferroic Mn1-xCoxWO4. United States. doi:10.1103/PhysRevB.98.214425.
Wang, Jinchen, Fishman, Randy Scott, Qiu, Yiming, Fernandez-Baca, Jaime A., Ehlers, Georg, Liang, K.-C., Wang, Yaqi, Lorenz, Bernd, Chu, C. W., and Ye, Feng. 2018. "Comprehensive inelastic neutron scattering study of the multiferroic Mn1-xCoxWO4". United States. doi:10.1103/PhysRevB.98.214425.
@article{osti_1490590,
title = {Comprehensive inelastic neutron scattering study of the multiferroic Mn1-xCoxWO4},
author = {Wang, Jinchen and Fishman, Randy Scott and Qiu, Yiming and Fernandez-Baca, Jaime A. and Ehlers, Georg and Liang, K.-C. and Wang, Yaqi and Lorenz, Bernd and Chu, C. W. and Ye, Feng},
abstractNote = {Here, using high-resolution inelastic neutron scattering, we examine the spin dynamics of Mn1-xCoxWO4 in the collinear AF1, the ac-b spiral AF2, and the ac cycloidal AF5 phases. The spin wave excitations are well described by a Heisenberg model with competing long-range exchange interactions (Ji up to 12th nearest neighbors) and the single-ion anisotropy K induced by the spin-orbit interaction. Additionally, while the exchange constants are relatively unchanged, the dominant effect of doping is to change the single-ion anisotropy from easy axis (K>0) in the collinear AF1 phase to easy plane (K<0) in the two multiferroic phases.},
doi = {10.1103/PhysRevB.98.214425},
journal = {Physical Review B},
number = 21,
volume = 98,
place = {United States},
year = {2018},
month = {12}
}

Works referenced in this record:

Multiferroics progress and prospects in thin films
journal, January 2007
  • Ramesh, R.; Spaldin, Nicola A.
  • Nature Materials, Vol. 6, Issue 1, p. 21-29
  • DOI: 10.1038/nmat1805