A model for the reflectivity spectra of TmTe |
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| Authors: | P Nayak |
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| Affiliation: | (1) P. G. Department of Physics, Sambalpur University, 768 019 Jyotivihar, Burla, India |
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| Abstract: | ![]()
A simple one dimensional diatomic chain model is proposed to explain the reflectivity spectra of TmTe as observed by Wardet al. It is suggested that the system undergoes a structural phase transition of order-disorder type at 4.2 K, where the new phase assumes an anti-ferroelectric type of arrangement of the atoms. The results, we obtained, agree well qualitatively with the experimental results. |
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| Keywords: | Lattice dynamics reflectivity spectra mixed valence system structural phase transition anti-ferroelectric order |
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