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Title: Noncollinear magnetic structure and magnetoelectric coupling in buckled honeycomb Co4Nb2O9: A single-crystal neutron diffraction study

Abstract

Through an analysis of single-crystal neutron diffraction data, we present the magnetic structure and magnetoelectric properties of Co4Nb2O9 under various magnetic fields. In zero field, neutron diffraction experiments below TN=27K reveal that the Co2+ moments order in the (ab) plane without any spin canting along the c axis, manifested by the magnetic symmetry C2/c'. Along each Co chain parallel to the c axis, the moments of nearest-neighbor Co atoms order ferromagnetically with a small cant away from the next-nearest-neighbor Co moments. Under the applied magnetic field H ∥ a, three magnetic domains were aligned with their major magnetic moments perpendicular to the magnetic field with no other observable magnetic transitions. The influences of magnetic fields on the magnetic structures associated with the observed magnetoelectric coupling are discussed.

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1];  [3];  [3]; ORCiD logo [1];  [1];  [2]; ORCiD logo [1]; ORCiD logo [4]; ORCiD logo [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Florida State Univ., Tallahassee, FL (United States)
  3. Univ. of Tennessee, Knoxville, TN (United States)
  4. Univ. of Tennessee, Knoxville, TN (United States); Florida State Univ., Tallahassee, FL (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
OSTI Identifier:
1731059
Grant/Contract Number:  
AC05-00OR22725; KC0402010; SC-0020254; DMR-1644779
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review B
Additional Journal Information:
Journal Volume: 102; Journal Issue: 17; Journal ID: ISSN 2469-9950
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; magnetism; magnetoelectric effect; multiferroics; neutron diffraction

Citation Formats

Ding, Lei, Lee, Minseong, Hong, Tao, Dun, Zhiling, Sinclair, Ryan, Chi, Songxue, Agrawal, Harish K., Choi, Eun Sang, Chakoumakos, Bryan C., Zhou, Haidong, and Cao, Huibo. Noncollinear magnetic structure and magnetoelectric coupling in buckled honeycomb Co4Nb2O9: A single-crystal neutron diffraction study. United States: N. p., 2020. Web. https://doi.org/10.1103/physrevb.102.174443.
Ding, Lei, Lee, Minseong, Hong, Tao, Dun, Zhiling, Sinclair, Ryan, Chi, Songxue, Agrawal, Harish K., Choi, Eun Sang, Chakoumakos, Bryan C., Zhou, Haidong, & Cao, Huibo. Noncollinear magnetic structure and magnetoelectric coupling in buckled honeycomb Co4Nb2O9: A single-crystal neutron diffraction study. United States. https://doi.org/10.1103/physrevb.102.174443
Ding, Lei, Lee, Minseong, Hong, Tao, Dun, Zhiling, Sinclair, Ryan, Chi, Songxue, Agrawal, Harish K., Choi, Eun Sang, Chakoumakos, Bryan C., Zhou, Haidong, and Cao, Huibo. Mon . "Noncollinear magnetic structure and magnetoelectric coupling in buckled honeycomb Co4Nb2O9: A single-crystal neutron diffraction study". United States. https://doi.org/10.1103/physrevb.102.174443.
@article{osti_1731059,
title = {Noncollinear magnetic structure and magnetoelectric coupling in buckled honeycomb Co4Nb2O9: A single-crystal neutron diffraction study},
author = {Ding, Lei and Lee, Minseong and Hong, Tao and Dun, Zhiling and Sinclair, Ryan and Chi, Songxue and Agrawal, Harish K. and Choi, Eun Sang and Chakoumakos, Bryan C. and Zhou, Haidong and Cao, Huibo},
abstractNote = {Through an analysis of single-crystal neutron diffraction data, we present the magnetic structure and magnetoelectric properties of Co4Nb2O9 under various magnetic fields. In zero field, neutron diffraction experiments below TN=27K reveal that the Co2+ moments order in the (ab) plane without any spin canting along the c axis, manifested by the magnetic symmetry C2/c'. Along each Co chain parallel to the c axis, the moments of nearest-neighbor Co atoms order ferromagnetically with a small cant away from the next-nearest-neighbor Co moments. Under the applied magnetic field H ∥ a, three magnetic domains were aligned with their major magnetic moments perpendicular to the magnetic field with no other observable magnetic transitions. The influences of magnetic fields on the magnetic structures associated with the observed magnetoelectric coupling are discussed.},
doi = {10.1103/physrevb.102.174443},
journal = {Physical Review B},
number = 17,
volume = 102,
place = {United States},
year = {2020},
month = {11}
}

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