Ferromagnetism and Charge Order from a Frozen Electron Configuration in Strained Epitaxial
Journal Article
·
· Physical Review Letters
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Univ. of Illinois at Chicago, Chicago, IL (United States)
- Univ. of California, Riverside, CA (United States)
- National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
- Univ. of Illinois at Chicago, Chicago, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States); Dublin City Univ., Dublin (Ireland)
Here, we report ordering of the cobalt electron configuration in ferromagnetic strained epitaxial LaCoO3. Specifically, the presence of charge order is demonstrated from distinct features of the resonant cobalt contribution to superstructure reflections. Density functional theory calculations show that the observed order is consistent with the spin-state periodicity predicted to give rise to ferromagnetism in LaCoO3. Through the modification of symmetry by strain, concurrent frozen charge and spin-state order are stabilized, giving rise to long-range magnetic order.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-06CH11357; FG02-07ER46351
- OSTI ID:
- 1460556
- Alternate ID(s):
- OSTI ID: 1436388
- Journal Information:
- Physical Review Letters, Vol. 120, Issue 19; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 25 works
Citation information provided by
Web of Science
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