Saha-Dasgupta, T. ; Valenti, Roser ; Capraro, F. ; Gros, C. (2005) Na2V3O7: a frustrated nanotubular system with spin-½ diamond ring geometry Physical Review Letters, 95 (10). 107201_1-107201_4. ISSN 0031-9007
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Official URL: http://prl.aps.org/abstract/PRL/v95/i10/e107201
Related URL: http://dx.doi.org/10.1103/PhysRevLett.95.107201
Abstract
Following the recent discussion on the puzzling nature of the interactions in the nanotubular system Na2V3O7, we present a detailed ab initio microscopic analysis of its electronic and magnetic properties. By means of a nontrivial downfolding study we propose an effective model in terms of tubes of nine-site rings with the geometry of a spin-diamond necklace with frustrated inter-ring interactions. We show that this model provides a quantitative account of the observed magnetic behavior.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 65107 |
| Deposited On: | 15 Oct 2011 11:57 |
| Last Modified: | 15 Oct 2011 11:57 |
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