Journal
APPLIED PHYSICS LETTERS
Volume 94, Issue 21, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3133351
Keywords
antiferromagnetic materials; ellipsometry; energy gap; europium compounds; magnetic thin films; magnetisation; molecular beam epitaxial growth; optical constants
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Funding
- National Science Foundation [DMR-0507146]
- MRSEC Program [DMR-0520404, DMR-0820404]
- U.S. Department of Energy
- Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [820404] Funding Source: National Science Foundation
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Phase-pure, stoichiometric, unstrained, epitaxial (001)-oriented EuTiO3 thin films have been grown on (001) SrTiO3 substrates by reactive molecular-beam epitaxy. Magnetization measurements show antiferromagnetic behavior with T-N=5.5 K, similar to bulk EuTiO3. Spectroscopic ellipsometry measurements reveal that EuTiO3 films have a direct optical band gap of 0.93 +/- 0.07 eV.
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