Room-Temperature Topological Phase Transition in Quasi-One-Dimensional Material <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">B</mml:mi><mml:mi mathvariant="normal">i</mml:mi></mml:mrow><mml:mrow><mml:mn mathvariant="normal">4</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mi mathvariant="normal">I</mml:mi></mml:mrow><mml:mrow><mml:mn mathvariant="normal">4</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>
Jianwei Huang, Sheng Li, Chiho Yoon, Ji Seop Oh, Han Wu, Xiaoyuan Liu, Nikhil Dhale, Yan-Feng Zhou, Yucheng Guo, Yichen Zhang, Makoto Hashimoto, Donghui Lu, Jonathan Denlinger, Xiqu Wang, Chun Ning Lau, Robert J. Birgeneau, Fan Zhang, Bing Lv, Ming Yi
Abstract
Experiments provide clear signs of a weak topological insulator (TI) state, in which select surfaces conduct while the interior insulates, as well as hints of a higher-order TI state, where conduction is confined to hinges.
Topics & Concepts
Topological insulatorCondensed matter physicsPhysicsPhase transitionTopological orderMaterials scienceThermal conductionPhase (matter)Topology (electrical circuits)Topological defectTheoretical physicsState of matterInsulator (electricity)Characterization (materials science)Quantum phase transitionGeometric phaseTopological Materials and PhenomenaChemical and Physical Properties of MaterialsGraphene research and applications