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Rocquefelte, X., Whangbo, M. .-H., Villesuzanne, A., Jobic, S., Tran, F., Schwarz, K. & Blaha, P. (2010) Short-range magnetic order and temperature-dependent properties of cupric oxide. J. Phys.-Condes. Matter, 22 045502. 
Added by: Laurent Cournède (2016-03-10 21:37:33)
Type de référence: Article
DOI: 10.1088/0953-8984/22/4/045502
Numéro d'identification (ISBN etc.): 0953-8984
Clé BibTeX: Rocquefelte2010
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Catégories: MIOPS
Mots-clés: cuo, electronic-structure, resonance, spin-exchange, state
Créateurs: Blaha, Jobic, Rocquefelte, Schwarz, Tran, Villesuzanne, Whangbo
Collection: J. Phys.-Condes. Matter
Consultations : 9/345
Indice de consultation : 2%
Indice de popularité : 0.5%
Résumé     
The temperature dependence of the optical and magnetic properties of CuO were examined by means of hybrid density functional theory calculations. Our work shows that the spin exchange interactions in CuO are neither fully one-dimensional nor fully three-dimensional. The temperature dependence of the optical band gap and the Cu-63 nuclear quadrupole resonance frequency of CuO originate from the combined effect of a strong coupling between the spin order and the electronic structure and the progressive appearance of short-range order with temperature.
Added by: Laurent Cournède  
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