Defect-induced ferromagnetism on pulsed laser ablated Zn0.95Co0.05O diluted magnetic semiconducting thin films

2011 ◽  
Vol 110 (3) ◽  
pp. 033907 ◽  
Author(s):  
Q. Liu ◽  
C. L. Yuan ◽  
C. L. Gan ◽  
Guchang Han
Keyword(s):  
Thin Films ◽  
Pulsed Laser ◽  
Diluted Magnetic ◽  
Semiconducting Thin Films

scholarly journals Enhancement of Co substitution induced by Eu codoping in ZnO-based diluted magnetic semiconducting thin films

2010 ◽  
Vol 107 (3) ◽  
pp. 033909 ◽  
Author(s):  
P. Photongkam ◽  
Y. B. Zhang ◽  
M. H. N. Assadi ◽  
S. Li ◽  
D. Yu ◽  
...  
Keyword(s):  
Thin Films ◽  
Co Substitution ◽  
Diluted Magnetic ◽  
Semiconducting Thin Films

Room-temperature Ferromagnetic Zn0.95Co0.05O Diluted Magnetic Semiconducting Thin Films by Pulsed Laser Deposition

2006 ◽  
Vol 928 ◽  
Author(s):  
Yuebin Zhang ◽  
Qing Liu ◽  
Thirumany Sritharan ◽  
Chee-Lip Gan ◽  
Sean Li
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
X Ray ◽  
Doped Zno ◽  
Diluted Magnetic ◽  
Co Doped

ABSTRACTCo-doped ZnO thin films with room-temperature ferromagnetism have been successfully synthesized on (001) Si substrates at 450 °C by pulsed-laser deposition using a Zn0.95Co0.05O ceramic target. Their microstructural properties are carefully studied using atomic force microscopy, x-ray diffraction and high-resolution transmission electron microscopy. The oxidation state of Co and the ratio of Co/Zn are examined by x-ray photoelectron spectroscopy, and magnetic measurements are performed using SQUID. The results show that a single-phase crystalline Co-doped ZnO film was grown with (002) preferential orientation and some edge dislocations formed during the film growth. The origin of room-temperature ferromagnetism is explored. The presence of nanoclusters of any magnetic phase can be ruled out. The dislocations, coupled with oxygen vacancy, may contribute to the ferromagnetic properties in the much diluted magnetic semiconductor.

Zn0.9Co0.1O-based diluted magnetic semiconducting thin films

2004 ◽  
Vol 84 (25) ◽  
pp. 5255-5257 ◽  
Author(s):  
S. Ramachandran ◽  
Ashutosh Tiwari ◽  
J. Narayan
Keyword(s):  
Thin Films ◽  
Diluted Magnetic ◽  
Semiconducting Thin Films

Properties of Mn-doped Cu2O semiconducting thin films grown by pulsed-laser deposition

2003 ◽  
Vol 47 (12) ◽  
pp. 2215-2220 ◽  
Author(s):  
M. Ivill ◽  
M.E. Overberg ◽  
C.R. Abernathy ◽  
D.P. Norton ◽  
A.F. Hebard ◽  
...  
Keyword(s):  
Thin Films ◽  
Pulsed Laser Deposition ◽  
Pulsed Laser ◽  
Laser Deposition ◽  
Semiconducting Thin Films ◽  
Mn Doped
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