Raman scattering in layered compound 2H-WS2 |
| |
| Authors: | T Sekine T Nakashizu K Toyoda K Uchinokura E Matsuura |
| |
| Institution: | Institute of Physics, The University of Tsukuba, Sakura-mura, Ibaraki 305, Japan |
| |
| Abstract: | Raman scattering of layer-type compound 2H-WS2 has been studied at room temperature. The first-order Raman peaks are observed at 27.4, 357 and 423 cm-1. The low-frequency peak at 27.4 cm-1 is a rigid-layer mode, from which the interlayer shear force constant is estimated. The central force model is applied to the high-frequency phonons. The interlayer shear force constant is much smaller than the intralayer force constants. We also find several peaks due to the second-order processes. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
