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The CDW phase transformation in 1T-TaS2 observed by the doppler broadening of positron annihilation |
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| Authors: | A. Suzuki T. Hatano R. Yamamoto M. Doyama K. Endo H. Ihara S. Gonda |
| Affiliation: | Department of Metallurgy and Materials Science, Faculty of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 Japan;Electrotechnical Laboratory, 1-1-4 Umezono, Sakura-mura, Niihari-gun, Ibaraki, 305 Japan |
| Abstract: | The layered transition metal dichalcogenide 1T-TaS2 was studied by the Doppler broadening of positron annihilation. The Doppler broadened line- shape was measured over the temperature range between 77 and 292 K. The CDW phase transformation at about 200 K is discussed in terms of the W-parameters calculated from the energy spectra. |
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