Short-range magnetic order and temperature-dependent properties of cupric oxide.
J Phys Condens Matter
; 22(4): 045502, 2010 Feb 03.
Article
in En
| MEDLINE
| ID: mdl-21386317
ABSTRACT
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 (63)Cu 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.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
J Phys Condens Matter
Journal subject:
BIOFISICA
Year:
2010
Document type:
Article
Affiliation country:
France