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Twisted 1T TaS2 bilayers by lithiation exfoliation.
Nanoscale ( IF 5.8 ) Pub Date : 2020-08-24 , DOI: 10.1039/d0nr05148a Hui Li 1 , Pan Liu 1 , Qi Liu 2 , Ruichun Luo 1 , Chenguang Guo 3 , Ziqian Wang 4 , Pengfei Guan 2 , Christopher Florencio Aleman 4 , Fuqiang Huang 3 , Mingwei Chen 4
Nanoscale ( IF 5.8 ) Pub Date : 2020-08-24 , DOI: 10.1039/d0nr05148a Hui Li 1 , Pan Liu 1 , Qi Liu 2 , Ruichun Luo 1 , Chenguang Guo 3 , Ziqian Wang 4 , Pengfei Guan 2 , Christopher Florencio Aleman 4 , Fuqiang Huang 3 , Mingwei Chen 4
Affiliation
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We report twisted 1T TaS2 bilayers synthesized by a lithiation exfoliation method. Atomic-scale observations reveal the existence of eight twist commensurate configurations from over 50 1T TaS2 bilayer samples in the twist angle range from 0° to 30° in which commensurate atomic configurations can be distinguished by scanning transmission electron microscopy. The limited number of twist angles, rather than random ones, indicates that there are energetically favorite twist angles in the naturally formed bilayers. Together with the interlayer distance measurements, the formation of the bilayer twist configurations is anticipated to be regulated by the stacking energy in the charge-density-wave system through interlayer van der Waals interactions. The findings of this work may pave a new way to fabricate twisted bilayer TMDs for exploring exotic properties from additional moiré periodicity.
中文翻译：
锂化剥脱扭曲的1T TaS2双层。
我们报道通过锂化剥落法合成的扭曲的1T TaS 2双层。原子尺度的观测揭示了来自50多个1T TaS 2的八个扭曲相称构型的存在扭曲角范围为0°至30°的双层样品，其中相应的原子构型可以通过扫描透射电子显微镜进行区分。有限数量的扭曲角，而不是随机的，表明在自然形成的双层中存在能量上最喜欢的扭曲角。连同层间距离测量一起，预计双层扭曲构型的形成将通过层间范德华相互作用通过电荷密度波系统中的堆叠能量来调节。这项工作的发现可能为制造扭曲的双层TMD铺平了一条新途径，以探索来自其他莫尔条纹周期的奇异特性。
更新日期：2020-09-18
中文翻译：
锂化剥脱扭曲的1T TaS2双层。
我们报道通过锂化剥落法合成的扭曲的1T TaS 2双层。原子尺度的观测揭示了来自50多个1T TaS 2的八个扭曲相称构型的存在扭曲角范围为0°至30°的双层样品，其中相应的原子构型可以通过扫描透射电子显微镜进行区分。有限数量的扭曲角，而不是随机的，表明在自然形成的双层中存在能量上最喜欢的扭曲角。连同层间距离测量一起，预计双层扭曲构型的形成将通过层间范德华相互作用通过电荷密度波系统中的堆叠能量来调节。这项工作的发现可能为制造扭曲的双层TMD铺平了一条新途径，以探索来自其他莫尔条纹周期的奇异特性。
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