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Title: Epitaxial growth and antiferromagnetism of Sn-substituted perovskite iridate SrI r 0.8 S n 0.2 O 3

Journal Article · · Physical Review Materials
ORCiD logo [1]; ORCiD logo [1];  [2]; ORCiD logo [3];  [4];  [5];  [6];  [7];  [8];  [8];  [8]; ORCiD logo [3]; ORCiD logo [7];  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. Charles Univ., Prague (Czech Republic)
  5. ShanghaiTech Univ., Shanghai (China)
  6. Chinese Academy of Sciences (CAS), Beijing (China)
  7. Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China); Songshan Lake Materials Lab., Guangdong (China)
  8. Argonne National Lab. (ANL), Argonne, IL (United States)

5d iridates have shown vast emergent phenomena due to a strong interplay among their lattice, charge, and spin degrees of freedom, because of which the potential in spintronic application of the thin-film form is highly leveraged. Here we have epitaxially stabilized perovskite SrIr0.8Sn0.2O3 on [001] SrTiO3 substrates through pulsed laser deposition and systematically characterized the structural, electronic, and magnetic properties. Physical property measurements unravel an insulating ground state with a weak ferromagnetism in the compressively strained epitaxial film. Here, the octahedral rotation pattern is identified by synchrotron x-ray diffraction, resolving a mix of a+bc and ab+c domains. X-ray magnetic resonant scattering directly demonstrates a G-type antiferromagnetic structure of the magnetic order and the spin canting nature of the weak ferromagnetism.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
National Science Foundation (NSF); University of Tennessee; National Key Research and Development Program of China; European Regional Development Fund (ERDF); National Natural Science Foundation of China (NSFC); Chinese Academy of Sciences (CAS); USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division
Grant/Contract Number:
AC02-06CH11357; DMR-1848269; SC0012704; 2018YFA0305700; 11874400; QYZDB-SSW-SLH013; 112111KYSB20170059
OSTI ID:
1595261
Journal Information:
Physical Review Materials, Vol. 3, Issue 12; ISSN 2475-9953
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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