Synthesis and frustrated magnetism of the triangular lattice <i>ARE</i>Se<sub>2</sub> single crystals
ORAL
Abstract
We have successfully synthesized ARESe2 (A = Alkali metal, RE=rare-earth) single crystals by the salt flux. These crystals stabilize in either the trigonal (R-3m) or hexagonal (P63/mmc) crystal systems depending on the RE, containing the ideal triangular RE3+ layers. We have characterized them through magnetization and heat capacity down to 0.4 K. Antiferromagnetic interactions with large magnetic anisotropy is observed, while no long-range order is found indicating frustrated magnetism. Yb-based crystals present a two-peak feature in the heat capacity below 10 K, while the magnetic plateau is found at 4 T when the magnetic field is applied in the ab plane. The 112 system is found to be particularly interesting for the study of frustrated magnetism and its potential for quantum spin liquid behavior.
*Work at ORNL was supported by U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES), Materials Science and Engineering Division. The X-ray diffraction analysis by RC was supported by the US Department of Energy, Office of Science, Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division. Work at Florida by J. S. Kim and G. R. S. supported by the US Department of Energy, Basic Energy Sciences, contract no. DE-FG02-86ER45268.
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Presenters
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Jie Xing
- Oak Ridge National Lab
- Oak Ridge National Laboratory