skip to main content

DOE PAGESDOE PAGES

This content will become publicly available on July 21, 2018

Title: Successive field-induced transitions in BiFeO 3 around room temperature

The effects of high magnetic fields applied perpendicular to the spontaneous ferroelectric polarization on single crystals of BiFeO 3 were investigated in this paper through magnetization, magnetostriction, and neutron diffraction measurements. The magnetostriction measurements revealed lattice distortion of 2 x 10 -5 during the reorientation process of the cycloidal spin order by applied magnetic fields. Furthermore, anomalous changes in magnetostriction and electric polarization at a larger field demonstrate an intermediate phase between cycloidal and canted antiferromagnetic states, where a large magnetoelectric effect was observed. Neutron diffraction measurements clarified that incommensurate spin modulation along the [110] hex direction in the cycloidal phase becomes Q = 0 commensurate along this direction in the intermediate phase. Finally, theoretical calculations based on the standard spin Hamiltonian of this material suggest an antiferromagnetic cone-type spin order in the intermediate phase.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [3] ;  [4] ;  [5] ;  [5] ;  [6] ;  [7] ;  [1]
  1. Univ. of Tokyo, Kashiwa (Japan). The Inst. for Solid State Physics (ISSP)
  2. National Inst. of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division
  4. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). NIST Center for Neutron Research
  5. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). NIST Center for Neutron Research; Univ. of Maryland, College Park, MD (United States). Dept. of Materials Science and Engineering
  6. Fukuoka Univ. (Japan). Dept. of Applied Physics
  7. Aoyama Gakuin Univ., Sagamihara (Japan). Dept. of Physics and Mathematics
Publication Date:
Grant/Contract Number:
AC05-00OR22725; JP16K05413
Type:
Accepted Manuscript
Journal Name:
Physical Review Materials
Additional Journal Information:
Journal Volume: 1; Journal Issue: 2; Journal ID: ISSN 2475-9953
Publisher:
American Physical Society (APS)
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); Univ. of Tokyo, Kashiwa (Japan); National Inst. of Advanced Industrial Science and Technology (AIST), Tsukuba (Japan)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); Dept. of Commerce (United States); Japan Society for the Promotion of Science (JSPS) (Japan); Murata Science Foundation (Japan)
Contributing Orgs:
Univ. of Maryland, College Park, MD (United States); Aoyama Gakuin Univ., Sagamihara (Japan); Fukuoka Univ. (Japan)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; magnetoelectric effect; magnetostriction; phase transitions by order; multiferroics; magnetization measurements; neutron diffraction; condensed matter and materials physics
OSTI Identifier:
1376426
Alternate Identifier(s):
OSTI ID: 1372421