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arXiv 2112.03367cond-mat.str-elcond-mat.mtrl-sci
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1 TaS $_{2}$中晶格驱动的手征电荷密度波态

Lattice-Driven Chiral Charge Density Wave State in 1T-TaS$_{2}$

Manoj Singh, Boning Yu, James Huber, Bishnu Sharma, Ghilles Ainouche, Ling Fu, Jasper van Wezel, Michael C. Boyer

摘要:

利用扫描隧道显微镜研究了1 T-TaS $_2$的近公度电荷密度波(NC-CDW)态的畴结构。在我们的亚埃表征的状态,我们发现一个连续的CDW晶格从畴壁到畴中心的演变,而不是一个固定的CDW安排在一个域。此外,我们发现了表征NC-CDW状态的域内手性。与先前在相关过渡金属二硫属化物中观察到的轨道驱动的手性不同,1 T-TaS $_2$中的NC-CDW态的手性性质似乎是由NC-CDW态与晶格的强耦合驱动的。

英文摘要:

We use scanning tunneling microscopy to study the domain structure of the nearly-commensurate charge density wave (NC-CDW) state of 1T-TaS$_2$. In our sub-angstrom characterization of the state, we find a continual evolution of the CDW lattice from domain wall to domain center, instead of a fixed CDW arrangement within a domain. Further, we uncover an intradomain chirality characterizing the NC-CDW state. Unlike the orbital-driven chirality previously observed in related transition metal dichalcogenides, the chiral nature of the NC-CDW state in 1T-TaS$_2$ appears driven by a strong coupling of the NC-CDW state to the lattice.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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