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
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