High Quality Single Crystal of Kitaev Spin Liquid Candidate Material RuBr3 Synthesized under High Pressure

Fuente: arXiv
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Main Authors: Zhang, Bowen, Li, Xiangjun, Yan, Limin, Li, Wenbo, Li, Nana, Zhao, Jianfa, Liu, Xiaobing, Yu, Shun-Li, Hu, Zhiwei, Yang, Wenge, Yu, Runze
Format: Preprint
Published: 2025
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author Zhang, Bowen
Li, Xiangjun
Yan, Limin
Li, Wenbo
Li, Nana
Zhao, Jianfa
Liu, Xiaobing
Yu, Shun-Li
Hu, Zhiwei
Yang, Wenge
Yu, Runze
author_facet Zhang, Bowen
Li, Xiangjun
Yan, Limin
Li, Wenbo
Li, Nana
Zhao, Jianfa
Liu, Xiaobing
Yu, Shun-Li
Hu, Zhiwei
Yang, Wenge
Yu, Runze
contents Kitaev quantum spin liquids have attracted significant attention in condensed matter physics over the past decade. To understand their emergent quantum phenomena, high-quality single crystals of substantial size are essential. Here, we report the synthesis of single crystals of the Kitaev quantum spin liquid candidate RuBr3, achieving millimeter-sized crystals through a self-flux method under high pressure and high temperature conditions. The crystals exhibit well-defined cleavage planes with a lustrous appearance. Transport characterizations exhibit a narrow band-gap semiconducting behavior with 0.13 eV and 0.11 eV band-gap in ab plane and along c axis, respectively. Magnetic measurement shows a transition to antiferromagnetic (AFM) state at approximately 29 K both in ab plane and along c axis. Notably, the Néel temperature increases to 34 K with an applied magnetic field of up to 7 T in the ab plane, but without any change along c axis. The large size and high quality of RuBr3 single crystals provide a valuable platform for investigating various interactions, particularly the Kitaev interaction, and for elucidating the intrinsic physical properties of Kitaev quantum spin liquids.
format Preprint
id arxiv_https___arxiv_org_abs_2502_11479
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle High Quality Single Crystal of Kitaev Spin Liquid Candidate Material RuBr3 Synthesized under High Pressure
Zhang, Bowen
Li, Xiangjun
Yan, Limin
Li, Wenbo
Li, Nana
Zhao, Jianfa
Liu, Xiaobing
Yu, Shun-Li
Hu, Zhiwei
Yang, Wenge
Yu, Runze
Strongly Correlated Electrons
Kitaev quantum spin liquids have attracted significant attention in condensed matter physics over the past decade. To understand their emergent quantum phenomena, high-quality single crystals of substantial size are essential. Here, we report the synthesis of single crystals of the Kitaev quantum spin liquid candidate RuBr3, achieving millimeter-sized crystals through a self-flux method under high pressure and high temperature conditions. The crystals exhibit well-defined cleavage planes with a lustrous appearance. Transport characterizations exhibit a narrow band-gap semiconducting behavior with 0.13 eV and 0.11 eV band-gap in ab plane and along c axis, respectively. Magnetic measurement shows a transition to antiferromagnetic (AFM) state at approximately 29 K both in ab plane and along c axis. Notably, the Néel temperature increases to 34 K with an applied magnetic field of up to 7 T in the ab plane, but without any change along c axis. The large size and high quality of RuBr3 single crystals provide a valuable platform for investigating various interactions, particularly the Kitaev interaction, and for elucidating the intrinsic physical properties of Kitaev quantum spin liquids.
title High Quality Single Crystal of Kitaev Spin Liquid Candidate Material RuBr3 Synthesized under High Pressure
topic Strongly Correlated Electrons
url https://arxiv.org/abs/2502.11479