We have found that 1T-TaSe2 has quasi-one-dimensional Fermi surface. The result explains well conducting property of 1T-TaX2 (X=Se, S) in the commensurate CDW phase.Michi-To Suzuki and Hisatomo HarimaJournal of Magnetism and Magnetic Materials...
In the I-CDW phase, the loss of translational symmetry coincides with a strong suppression and broadening of the Raman peaks. The observed change in the C-CDW transition temperature is consistent with total energy calculations of bulk and monolayer 1T-TaSe2....
with a fixed cell employed 9 layers and the outer 2 layers on each side have been relaxed. The surface Brillouin zone was sampled with 5 × 5 k-points and 30 Å of vacuum were added. We used a hex- agonal super respectively. cell to simulate the Ts = c CDW stacking15...
Theory of STM image of CDW in 1T-TaSe 2 The scanning tunnelling microscopy (STM) images of charge density waves (CDW) in transition-metal dichalcogenide 1T-TaSe are theoretically simulated throug... A Kikuchi - 《Surface Science》 被引量: 3发表: 1998年 Coexistence of two charge-density ...
高压下1T-TaS2拉曼光谱的研究 作为二硫族过渡金属化合物中的典型代表,层状材料1T-Ta S2是一种电荷密度波材料(charge density wave,简称CDW),表现出了强关联电子特性.对于1T-Ta S2的研究也多集中于温度导致的CDW相变,并伴随着电学特性的变化,而对1T-Ta S2高压下性质变化的研究却为数不多... 董青,李全军,刘...
However, the growth of atomically thin 1T㏕aSe2 crystals remains elusive, thus hampering studies of dimensionality effects on the CDW of the material. Herein, chemical vapor deposition (CVD) of atomically thin TaSe2 crystals is reported with controlled 1T phase. Scanning transmission electron ...
The low-temperature superstructures of 1T-TaS2 and 1H-TaSe2. Phys. B+C 99, 51–55 (1980). Article ADS CAS Google Scholar Smith, N. V., Kevan, S. D. & Di Salvo, F. J. Band structures of the layer compounds 1T-TaS2 and 1H-TaSe2 in the presence of commensurate charge-density...
过渡金属二硫族化合物材料中的电荷密度波(charge density wave,CDW)相变一直以来都是一个备受关注的课题,其中1T-TaS_2和1T-TaSe_2体系中的具有大卫之星(the star of D... 赵建国 - 《云南师范大学》 被引量: 0发表: 2024年 二维强关联电子态的测量和调控 近年来凝聚态物理领域研究的焦点.本文基于低温扫描隧...
高压Hall效应实验表明,9.4 GPa之后1T-Ta Se_2中可能出现与1T-Ta S_2和1T-Ti Se_2类似的电荷密度波(CDW)畴,CDW与超导电性之间属于一种共存关系.高压下(～19.0 GPa),Ta Se_2发生了由三角结构向单斜结构转变的结构相变,空间群C2/m.相变压力与T_c随压力变化的拐点相近,这表明高压下T_c的减小可能与其结构...
The magnetoresistance and Hall coefficient in the charge-density-wave (CDW.)state of 2#-NbSe. and 2#-TaSe. have been measured at low temperatures inmagneti... N Michio,T Shoji - 《Journal of the Physical Society of Japan》 被引量: 10发表: 1982年 Evolution of the Charge Density Wave ...