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Frustrated Magnetism in Mott Insulating (V1-xCrx)(2)O-3
文献类型：期刊
通讯作者：Leiner, JC (reprint author), Inst for Basic Sci Korea, Ctr Correlated Electron Syst, Seoul 08826, South Korea.; Leiner, JC (reprint author), Seoul Natl Univ, Dept Phys & Astron, Seoul 08826, South Korea.; Leiner, JC (reprint author), Oak Ridge Natl Lab, Neutron Scattering Div, Oak Ridge, TN 37831 USA.
期刊名称：PHYSICAL REVIEW X影响因子和分区
年：2019
卷：9
期：1
ISSN：2160-3308
所属部门：物理学系
摘要：V2O3 famously features all four combinations of paramagnetic versus antiferromagnetic and metallic versus insulating states of matter in response to percent-level doping, pressure in the GPa range, and temperature below 300 K. Using time-of-flight neutron spectroscopy combined with density functional theory calculations of magnetic interactions, we have mapped and analyzed the inelastic magnetic neutron scattering cross section over a wide range of energy and momentum transfer in the chromium-st ...More
V2O3 famously features all four combinations of paramagnetic versus antiferromagnetic and metallic versus insulating states of matter in response to percent-level doping, pressure in the GPa range, and temperature below 300 K. Using time-of-flight neutron spectroscopy combined with density functional theory calculations of magnetic interactions, we have mapped and analyzed the inelastic magnetic neutron scattering cross section over a wide range of energy and momentum transfer in the chromium-stabilized antiferromagnetic and paramagnetic insulating phases. Our results reveal an important magnetic frustration and degeneracy of the paramagnetic insulating phase which is relieved by the rhombohedral-to-monoclinic transition at T-N = 185 K. This leads to the recognition that magnetic frustration is an inherent property of the paramagnetic phase in (V1-xCrx)(2)O-3 and plays a key role in suppressing the magnetic long-rangeordering temperature and exposing a large phase space for the paramagnetic Mott metal-insulator transition to occur. ...Hide

DOI：10.1103/PhysRevX.9.011035
百度学术：Frustrated Magnetism in Mott Insulating (V1-xCrx)(2)O-3
语言：外文
被引频次：4
人气指数：4
浏览次数：4
基金：UT-Battelle LDRDUnited States Department of Energy (DOE) [3211-2440]; U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and EngineeringUnited States Department of Energy (DOE) [DE-SC0016166, DE-SC0019331]; Gordon and Betty Moore foundation under EPIQS program [GBMF4532]; Office of Science of the U.S. Department of EnergyUnited States Department of Energy (DOE) [DE-AC02-05CH11231]; National Science Foundation of ChinaNational Natural Science Foundation of China [11572040]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [11227906]; Deutsche ForschungsgemeinschaftGerman Research Foundation (DFG) [SFB/TRR 49]
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