Sundar, C. S. ; Bharathi, A. ; Premila, M. ; Hariharan, Y. (2001) Metal-insulator transition in V2O3: positron lifetime studies Journal of Alloys and Compounds, 326 (1-2). pp. 105-107. ISSN 0925-8388
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/S0925-8388(01)01234-8
Abstract
Temperature dependence of positron lifetime has been studied across the metal-insulator transition at 150 K in V2O3. With the decrease of temperature, positron lifetime, 220 ps at room temperature is seen to decrease gradually to 190 ps at low temperature. The smaller value of lifetime in the low temperature insulating phase is surprising, and is possibly related to the changes in local structure across the Rhombohedral to monoclinic structural transition.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | Metal-insulator Transition; V2O3; Positron Annihilation |
| ID Code: | 53242 |
| Deposited On: | 05 Aug 2011 10:36 |
| Last Modified: | 05 Aug 2011 10:36 |
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