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Title: Electronic origin of the spin-phonon coupling effect in transition-metal perovskites

Journal Article · · Physical Review B
 [1];  [2];  [3];  [4];  [4]
  1. Univ. of Science and Technology of China, Hefei (China); Temple Univ., Philadelphia, PA (United States)
  2. Univ. of Science and Technology of China, Hefei (China)
  3. Peking Univ., Beijing (China)
  4. Temple Univ., Philadelphia, PA (United States)

By applying the Wannier-based extended Kugel-Khomskii model, we carry out first-principles calculations and electronic structure analysis to understand the spin-phonon coupling effect in transition-metal perovskites. In this work, we demonstrate the successful application of our approach to SrMnO3 and BiFeO3. We show that both the electron orbitals under crystal-field splitting and the electronic configuration should be taken into account in order to understand the large variances of spin-phonon coupling effects among various phonon modes as well as in different materials.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Center for the Computational Design of Functional Layered Materials (CCDM); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Natural Science Foundation of China (NSFC); National Key Research and Development Program of China; Ministry of Science and Technology of the People’s Republic of China (MOST); National Science Foundation (NSF)
Grant/Contract Number:
SC0012575; 11374275; 2016YFB0201200; 2013CB933400; DMR-1552287; AC02-05CH11231
OSTI ID:
1469914
Alternate ID(s):
OSTI ID: 1375265
Journal Information:
Physical Review B, Vol. 96, Issue 7; Related Information: CCDM partners with Temple University (lead); Brookhaven National Laboratory; Drexel University; Duke University; North Carolina State University; Northeastern University; Princeton University; Rice University; University of Pennsylvania; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

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