Theoretical approach to the magnetostructural correlations in spin-Peierls compound CuGeO3
Autor: | Ruiz Sabín, Eliseo, Cano Boquera, Joan, Álvarez, Santiago (Álvarez Reverter), Alemany i Cahner, Pere, Verdaguer, Michel |
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Přispěvatelé: | Universitat de Barcelona |
Předmět: | |
Zdroj: | Recercat. Dipósit de la Recerca de Catalunya instname Dipòsit Digital de la UB Universidad de Barcelona |
Popis: | A theoretical density-functional study has been carried out to analyze the exchange coupling in the chains of CuGeO3 using discrete models. The results show a good agreement with the experimental exchange coupling constant (J) together with a strong dependence of J with the Cu-O-Cu angle. The calculation of the J values for a distorted model indicates a larger degree of dimerization than those reported previously. |
Databáze: | OpenAIRE |
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