Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 90, Issue 12, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.7566/JPSJ.90.123703
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Funding
- JSPS KAKENHI [JP18H01159, JP18K03531, JP19H01834, JP19H01837, JP19H04685, JP19H05822, JP19H05823, JP19H05824, JP19K21837, JP19K21839, JP20K14395, JP20H01850]
- Murata Science Foundation
- CORE Laboratory Research Program Dynamic Alliance for Open Innovation Bridging Human, Environment and Materials of the Network Joint Research Center for Materials and Device
- JST CREST, Japan [JP19198318]
- MEXT [JPMXP1020200104]
- RIKEN-Center for Computational Science (R-CCS) as part of the HPCI System Research Project [hp210163]
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A polymorph of RuI3 synthesized under high pressure has a two-layered honeycomb structure and exhibits semimetallic behavior in terms of resistivity, indicating strong electron correlations. Pauli paramagnetic behavior was observed in temperature dependence of magnetic susceptibility and nuclear spin-lattice relaxation rate 1/T1.
A polymorph of RuI3 synthesized under high pressure was found to have a two-layered honeycomb structure. The resistivity of RuI3 exhibited semimetallic behavior, in contrast to the insulating properties of alpha-RuCl3. In addition, Pauli paramagnetic behavior was observed in the temperature dependence of the magnetic susceptibility and the nuclear spin- lattice relaxation rate 1/T1. Band structure calculations indicate that the contribution of the I 5p components to the lowenergy t2g bands effectively reduces the Coulomb repulsion, leading to semimetallic properties. The physical properties also suggest strong electron correlations in RuI3.
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