TY - JOUR
T1 - Structure and magnetism of V-doped SnO2 thin films
T2 - Effect of the substrate
AU - Zhang, Jun
AU - Skomski, R.
AU - Yue, L. P.
AU - Lu, Y. F.
AU - Sellmyer, D. J.
PY - 2007/6/27
Y1 - 2007/6/27
N2 - We report on the structure and magnetism of V-doped SnO2 thin films grown by pulsed laser deposition. The structure and magnetic properties of the films strongly depend on the substrates on which the films are grown. Films grown on Al2O3 substrates are single crystalline and show anisotropic in-plane magnetic moments, while films grown on Si substrates are nanocrystalline and show no anisotropy. Compared with that of single-crystalline films, the magnetic moment of nanocrystalline films is higher at low V concentration, decreases more quickly as the V concentration increases, and is more sensitive to vacuum annealing. Our results suggest important roles for spin-orbit coupling and defects in the magnetism of diluted magnetic oxides.
AB - We report on the structure and magnetism of V-doped SnO2 thin films grown by pulsed laser deposition. The structure and magnetic properties of the films strongly depend on the substrates on which the films are grown. Films grown on Al2O3 substrates are single crystalline and show anisotropic in-plane magnetic moments, while films grown on Si substrates are nanocrystalline and show no anisotropy. Compared with that of single-crystalline films, the magnetic moment of nanocrystalline films is higher at low V concentration, decreases more quickly as the V concentration increases, and is more sensitive to vacuum annealing. Our results suggest important roles for spin-orbit coupling and defects in the magnetism of diluted magnetic oxides.
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U2 - 10.1088/0953-8984/19/25/256204
DO - 10.1088/0953-8984/19/25/256204
M3 - Article
AN - SCOPUS:34250197956
SN - 0953-8984
VL - 19
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 25
M1 - 256204
ER -