Open AccessMagnetic and optical properties of Co doped ZnO powders synthesized by solid-state reaction
Author(s) -
Xuechao Liu,
Er-Wei Shi,
Lixin Song,
Huawei Zhang,
Zhi-Zhan Chen
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.2557
Subject(s) - materials science , paramagnetism , ferromagnetism , spins , ion , doping , exchange interaction , solid state , analytical chemistry (journal) , condensed matter physics , chemistry , optoelectronics , organic chemistry , physics
Co doped ZnO powders were synthesized by the solid-state reaction. The magnetic and optical properties of the powders were investigated. The experimental results indicate that Zn2+ ions were substituted by Co2+ ions randomly. Zn0.95Co0.05O powders prefer paramagnetic state to ferromagnetic state from 3 K to 300 K due to coupling exchange interactions between Co 3d spins, which makes the nearest Co2+ antiparallel.