The investigation of frustrated magnetism in the triangular lattice <i>ARE</i>Se<sub>2</sub> single crystals
ORAL
Abstract
A large class of compounds with the formula of AREQ2 (A = Alkali metal, RE= rare earth, Q = O, S, Se) has been proposed as a good platform for investigating frustrated magnetic ground states[1-3]. The rare earth ions construct the ideal triangular layers, which are separated by A ions. We successfully synthesized ARESe2 single crystals by the salt flux and performed magnetization, heat capacity, and neutron diffraction measurement down to 0.05 K. Antiferromagnetic interaction with large magnetic anisotropy was observed in this system. Yb based compounds present possible QSL ground state at low field. The stripe AFM ground state is found in KErSe2 from the neutron diffraction. All these results reveal this family is an interesting system for the study of frustrated magnetism with rare earth ions.
*Work at ORNL was supported by U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES), Materials Science and Engineering Division.
[1] W. Liu, et al. Chin. Phys. Lett. 35, 117501 (2019).
[2] M. Baenitz. et al. Phys. Rev. B 98, 220409 (2019).
[3] M. Bordelon, et al. Nature Physics 15. 1058 (2019).
*Work at ORNL was supported by U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES), Materials Science and Engineering Division.
[1] W. Liu, et al. Chin. Phys. Lett. 35, 117501 (2019).
[2] M. Baenitz. et al. Phys. Rev. B 98, 220409 (2019).
[3] M. Bordelon, et al. Nature Physics 15. 1058 (2019).
–
Presenters
-
Jie Xing
- Materials Science and Technology Division, Oak Ridge National Laboratory
- Oak Ridge National Lab