skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Tuning the Néel Temperature of Hexagonal Ferrites by Structural Distortion

Abstract

To tune the magnetic properties of hexagonal ferrites, a family of magnetoelectric multiferroic materials, by atomic-scale structural engineering, we studied the effect of structural distortion on the magnetic ordering temperature ( TN) in these materials. Using the symmetry analysis, we show that unlike most antiferromagnetic rare-earth transition-metal perovskites, a larger structural distortion leads to a higher TN in hexagonal ferrites and manganites, because the K 3 structural distortion induces the three-dimensional magnetic ordering, which is forbidden in the undistorted structure by symmetry. We also revealed a near-linear relation between TN and the tolerance factor and a power-law relation between TN and the K 3 distortion amplitude. Following the analysis, a record-high TN (185 K) among hexagonal ferrites was predicted in hexagonal ScFeO 3 and experimentally verified in epitaxially stabilized films. Furthermore these results add to the paradigm of spin-lattice coupling in antiferromagnetic oxides and suggests further tunability of hexagonal ferrites if more lattice distortion can be achieved.

Authors:
 [1];  [1];  [2];  [3];  [1];  [4];  [2];  [5];  [6];  [6];  [7];  [1]
  1. Univ. of Nebraska, Lincoln, NE (United States)
  2. Bryn Mawr College, Bryn Mawr, PA (United States)
  3. Temple Univ., Philadelphia, PA (United States); Peking Univ., Beijing (People's Republic of China)
  4. Fudan Univ., Shanghai (People's Republic of China)
  5. Argonne National Lab. (ANL), Argonne, IL (United States)
  6. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  7. Temple Univ., Philadelphia, PA (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF)
OSTI Identifier:
1510071
Alternate Identifier(s):
OSTI ID: 1484974
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 121; Journal Issue: 23; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Sinha, Kishan, Wang, Haohan, Wang, Xiao, Zhou, Liying, Yin, Yuewei, Wang, Wenbin, Cheng, Xuemei, Keavney, David J., Cao, Huibo, Liu, Yaohua, Wu, Xifan, and Xu, Xiaoshan. Tuning the Néel Temperature of Hexagonal Ferrites by Structural Distortion. United States: N. p., 2018. Web. doi:10.1103/PhysRevLett.121.237203.
Sinha, Kishan, Wang, Haohan, Wang, Xiao, Zhou, Liying, Yin, Yuewei, Wang, Wenbin, Cheng, Xuemei, Keavney, David J., Cao, Huibo, Liu, Yaohua, Wu, Xifan, & Xu, Xiaoshan. Tuning the Néel Temperature of Hexagonal Ferrites by Structural Distortion. United States. doi:10.1103/PhysRevLett.121.237203.
Sinha, Kishan, Wang, Haohan, Wang, Xiao, Zhou, Liying, Yin, Yuewei, Wang, Wenbin, Cheng, Xuemei, Keavney, David J., Cao, Huibo, Liu, Yaohua, Wu, Xifan, and Xu, Xiaoshan. Fri . "Tuning the Néel Temperature of Hexagonal Ferrites by Structural Distortion". United States. doi:10.1103/PhysRevLett.121.237203.
@article{osti_1510071,
title = {Tuning the Néel Temperature of Hexagonal Ferrites by Structural Distortion},
author = {Sinha, Kishan and Wang, Haohan and Wang, Xiao and Zhou, Liying and Yin, Yuewei and Wang, Wenbin and Cheng, Xuemei and Keavney, David J. and Cao, Huibo and Liu, Yaohua and Wu, Xifan and Xu, Xiaoshan},
abstractNote = {To tune the magnetic properties of hexagonal ferrites, a family of magnetoelectric multiferroic materials, by atomic-scale structural engineering, we studied the effect of structural distortion on the magnetic ordering temperature (TN) in these materials. Using the symmetry analysis, we show that unlike most antiferromagnetic rare-earth transition-metal perovskites, a larger structural distortion leads to a higher TN in hexagonal ferrites and manganites, because the K3 structural distortion induces the three-dimensional magnetic ordering, which is forbidden in the undistorted structure by symmetry. We also revealed a near-linear relation between TN and the tolerance factor and a power-law relation between TN and the K3 distortion amplitude. Following the analysis, a record-high TN (185 K) among hexagonal ferrites was predicted in hexagonal ScFeO3 and experimentally verified in epitaxially stabilized films. Furthermore these results add to the paradigm of spin-lattice coupling in antiferromagnetic oxides and suggests further tunability of hexagonal ferrites if more lattice distortion can be achieved.},
doi = {10.1103/PhysRevLett.121.237203},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 23,
volume = 121,
place = {United States},
year = {2018},
month = {12}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on December 7, 2019
Publisher's Version of Record

Save / Share:

Works referenced in this record:

Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides
journal, September 1976