期刊
CRYSTALS
卷 9, 期 7, 页码 -出版社
MDPI
DOI: 10.3390/cryst9070324
关键词
high pressure crystal growth; floating zone method; perovskite; nickelate; metal-insulator transition
资金
- US Department of Energy, Office of Science, Basic Energy Sciences, Materials Science and Engineering Division
- DOE Office of Science [DE-AC02-06CH11357]
- ORNL Postdoctoral Development Fund by UT-Battelle, LLC
- U.S. Department of Energy [DE-AC05-00OR22725]
- National Science Foundation Materials Innovation Platform grant [1539918]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1539918] Funding Source: National Science Foundation
Single crystals of PrNiO3 were grown under an oxygen pressure of 295 bar using a unique high-pressure optical-image floating zone furnace. The crystals, with volume in excess of 1 mm(3), were characterized structurally using single crystal and powder X-ray di ff raction. Resistivity, specific heat, and magnetic susceptibility were measured, all of which evidenced an abrupt, first order metal-insulator transition (MIT) at similar to 130 K, in agreement with previous literature reports on polycrystalline specimens. Temperature-dependent single crystal di ff raction was performed to investigate changes through the MIT. Our study demonstrates the opportunity space for high fugacity, reactive environments for single crystal growth specifically of perovskite nickelates but more generally to correlated electron oxides.
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