Raman spectrum of a single crystal 2H-TaS2. Measurement was performed with a 785 nm Raman system at room temperature. 其它信息 具体参数请咨询技术人员。 价格说明 价格:商品在爱采购的展示标价,具体的成交价格可能因商品参加活动等情况发生变化,也可能随着购买数量不同或所选规格不同而发生变化,如用户与...
The Raman spectra of 2H–NbS2 and 2H–TaS2 have been analyzed in terms of a valence-force-field (VFF) model that incorporates four parameters. Analytic expressions for the Brillouin-zone-centre phonon frequencies have been obtained from the model and used in conjunction with the Raman ...
The collapse of the charge-density-wave order at pressures above 7.3 GPa has been verified by Raman scatte... XM Zhao,K Zhang,ZY Cao,... - 《Physical Review B Covering Condensed Matter & Materials Physics》 被引量: 0发表: 2020年 Transition metal chalcogenides in the 2D limit: ...
Raman spectra are presented in the high and low temperature phases of 2H-TaS 2. In the normal phase at 380 K one A 1 g- and two E 2 g-modes have been observed at 400, 27 and 286 cm -1, respectively. In the charge density wave state two extra peaks appear with strong scattering...
In this study, we explore the CDW transition through a combination of temperature and excitation-dependent Raman spectroscopy, angle resolved photoemission spectroscopy (ARPES), and density functional theory (DFT). Below TCDW we identify two CDW amplitude modes that redshift and broaden with ...
(HFIPS), Chinese Academy of Sciences (CAS) proposedan electromagnetic field enhancement mechanism based on the near neighbor electron orbit coupling effect(as shown below), explaining the mechanism of two-dimensional (2D) layered material Au-2H-TaS2 usedfor surface enhanced Raman scattering (SERS)...