这项工作于2023年9月12日以“Possible intermediate quantum spin liquid phase in-under high magnetic fields up to 100 T ”为题在线发表于《自然·通讯》(Nature Communications),论文的合作者还包括东京大学强磁场实验室Y. Matsuda教...
这一新的自旋液体态理论预言为实验寻找Kitaev材料中的自旋液体态提供了明确方向，目前相关实验合作正在积极推进中。此项研究成果于2021年6月29日以“Identification of Magnetic Interactions and High-field Quantum Spin Liquid in Kitaev Materials”为题，在线发表于《自然·通讯》杂志。该研究得到了国家自然科学基金面...
问题起源于对量子自旋液体(quantum spin liquid, QSL)这一新物态的探索。众所周知,QSL是介于有序磁性和顺磁性之外的第三种磁性(态)。如果磁有序类比于固态、顺磁态类比于气态,则QSL态就是液态。量子磁性的发展,最初只是基于朗道相变理论框架下的顺磁态和磁有序研究。它们之间的...
We call this immobile liquid state Anderson-Kitaev liquid state with two localized Majorana fermions, one frozen by gauge fluctuations and the other localized by disordered mass terms. The quantization of the thermal Hall conductivity $\\kappa/T$ disappears by a quantum Hall transition induced by ...
翻阅最新的Physical Review B论文,看到一篇有趣的论文,那就是《Analytic calculation of the vison gap in the Kitaev spin liquid》【PHYSICAL REVIEW B 108, 045151 (2023)】[1] 这篇文章由凝聚态理论家Piers Coleman和他的小伙伴Alexei Tsvelik以及研究生(或博士后)Aaditya Panigrahi共同完成。
9月12日,相关研究成果以Possible intermediate quantum spin liquid phase in α-RuCl3 under high magnetic fields up to 100 T 为题,在线发表在《自然-通讯》(Nature Communications)上。研究工作得到国家自然科学基金优秀青年科学基金项目和面上项目、博新计划和中国科学院稳定支持基础研究领域青年团队计划等的支持。
The Kitaev spin liquid realizes an emergent static $${{\mathbb{Z}}}_{2}$$ gauge field with vison excitations coupled to Majorana fermions. We consider Kitaev models stacked on top of each other, weakly coupled by Heisenberg interaction ∝ J⊥. This inter
该模型基态为量子自旋液体(Quantum spin liquid),因此又被称为Kitaev自旋液体模型。研究发现,层状范德华材料α-RuCl3的晶格具备Kitaev模型的参数指征,被认为是研究Kitaev物理最理想的平台之一。过去一系列基于α-RuCl3的磁性谱学及热输运实验都给出了其存在分数化量子激发(Majorana费米子及具有非阿贝统计的Majorana...
Frustrated quantum magnets can harbor unconventional spin-liquid ground states in which the elementary magnetic moments fractionalize into new emergent degrees of freedom. While the fractionalization of quantum numbers is one of the recurring themes in modern condensed matter physics, it often r...
Quantum spin liquid candidate becomes a superconductor under pressure The researchers found that all the REChX compounds they studied are truly two-dimensional, with their 2D structure being held in shape by weak van der Waals forces between the material layers. They also have an undistorted honey...