Determination of inelastic critical scattering at a first order phase transition in the CDW structure of 1TTaS2 using Mössbauer diffraction |
| |
Authors: | JR Stevenson JG Mullen |
| |
Institution: | Department of Physics, Purdue University, West Lafayette, Indiana 47907, USA |
| |
Abstract: | We report Mössbauer diffraction measurements of the temperature dependence of the elastic and inelastic intensities at the (100) Bragg reflection in 1TTaS2. These measurements use a newly developed microfoil conversion electron (MICE) spectrometry. They cover the temperature range from 19°C to 100°C, bracketing the first order 1T1 to 1T2 phase transition in the charge density wave structure at 79°C. The elastic Bragg peak shows a discontinuity at the phase transition as reported by Moret and Colella. The inelastic scattering shows a significant peak near the phase transition. This peak is interpreted as inelastic critical scattering at this first order phase transition. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|