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Title: Spin Liquid State and Topological Structural Defects in Hexagonal TbInO 3

Abstract

The coexistence of ferroelectricity and a spin liquid state in hexagonal TbInO3 with quasi-two-dimensional triangular spin lattice is introduced in this work. Geometrical ferroelectricity associated with In trimerization accompanies topological ferroelectric structural defects. Magnetic susceptibility data show in-plane magnetic anisotropy of Tb spins without any long-range order above 1.8 K, and we also confirm no trace of any phase transition down to 0.15 K from a specific heat measurement, which indicates that this system is highly frustrated and may host a spin liquid ground state. By analyzing the Schottky anomaly in the specific heat results, we propose a model where crystal-field levels are different in each Tb sites, and only one of them has a magnetic ground state and forms a unique honeycomb spin lattice. These observations bring up an interesting possibility where spin liquid and ferroelectric behaviors coexist, and the atomically sharp ferroelectric domain walls may host new magnetic edge states or local spin excitations.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1532583
Alternate Identifier(s):
OSTI ID: 1544728
Report Number(s):
LA-UR-18-30066
Journal ID: ISSN 2160-3308; PRXHAE; 031005
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Published Article
Journal Name:
Physical Review. X
Additional Journal Information:
Journal Name: Physical Review. X Journal Volume: 9 Journal Issue: 3; Journal ID: ISSN 2160-3308
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Kim, Jaewook, Wang, Xueyun, Huang, Fei-Ting, Wang, Yazhong, Fang, Xiaochen, Luo, Xuan, Li, Y., Wu, Meixia, Mori, S., Kwok, D., Mun, Eun Deok, Zapf, V. S., and Cheong, Sang-Wook. Spin Liquid State and Topological Structural Defects in Hexagonal TbInO 3. United States: N. p., 2019. Web. doi:10.1103/PhysRevX.9.031005.
Kim, Jaewook, Wang, Xueyun, Huang, Fei-Ting, Wang, Yazhong, Fang, Xiaochen, Luo, Xuan, Li, Y., Wu, Meixia, Mori, S., Kwok, D., Mun, Eun Deok, Zapf, V. S., & Cheong, Sang-Wook. Spin Liquid State and Topological Structural Defects in Hexagonal TbInO 3. United States. https://doi.org/10.1103/PhysRevX.9.031005
Kim, Jaewook, Wang, Xueyun, Huang, Fei-Ting, Wang, Yazhong, Fang, Xiaochen, Luo, Xuan, Li, Y., Wu, Meixia, Mori, S., Kwok, D., Mun, Eun Deok, Zapf, V. S., and Cheong, Sang-Wook. Tue . "Spin Liquid State and Topological Structural Defects in Hexagonal TbInO 3". United States. https://doi.org/10.1103/PhysRevX.9.031005.
@article{osti_1532583,
title = {Spin Liquid State and Topological Structural Defects in Hexagonal TbInO 3},
author = {Kim, Jaewook and Wang, Xueyun and Huang, Fei-Ting and Wang, Yazhong and Fang, Xiaochen and Luo, Xuan and Li, Y. and Wu, Meixia and Mori, S. and Kwok, D. and Mun, Eun Deok and Zapf, V. S. and Cheong, Sang-Wook},
abstractNote = {The coexistence of ferroelectricity and a spin liquid state in hexagonal TbInO3 with quasi-two-dimensional triangular spin lattice is introduced in this work. Geometrical ferroelectricity associated with In trimerization accompanies topological ferroelectric structural defects. Magnetic susceptibility data show in-plane magnetic anisotropy of Tb spins without any long-range order above 1.8 K, and we also confirm no trace of any phase transition down to 0.15 K from a specific heat measurement, which indicates that this system is highly frustrated and may host a spin liquid ground state. By analyzing the Schottky anomaly in the specific heat results, we propose a model where crystal-field levels are different in each Tb sites, and only one of them has a magnetic ground state and forms a unique honeycomb spin lattice. These observations bring up an interesting possibility where spin liquid and ferroelectric behaviors coexist, and the atomically sharp ferroelectric domain walls may host new magnetic edge states or local spin excitations.},
doi = {10.1103/PhysRevX.9.031005},
journal = {Physical Review. X},
number = 3,
volume = 9,
place = {United States},
year = {2019},
month = {7}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevX.9.031005

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Cited by: 11 works
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