Title :
Microwave processing of ZnO based dilute magnetic semiconductors
Author :
Dube, Charu Lata ; Kashyap, Subhash C. ; Dube, D.C. ; Agarwal, D.K.
Author_Institution :
Dept. of Phys., Indian Inst. of Technol. Delhi, New Delhi
Abstract :
In the present work, polycrystalline ferromagnetic Zn0.95Co0.05O samples have been synthesized in a TM011 single mode cylindrical microwave resonant cavity operating at 2.45 GHz. The synthesized specimen is analyzed for its crystallographic and electronic structure along with magnetic and electron transport properties. The X-ray diffractogram and photoelectron spectroscopy of Zn0.95Co0.05O establish the incorporation of cobalt atoms into ZnO lattice. The room temperature magnetization study confirms the ferromagnetic ordering in the microwave processed highly resistive samples; which can be attributed to bound magnetic polarons model.
Keywords :
II-VI semiconductors; X-ray diffraction; band structure; crystal structure; ferromagnetic materials; magnetic polarons; photoelectron spectroscopy; semimagnetic semiconductors; wide band gap semiconductors; zinc compounds; TM011 single mode cylindrical microwave resonant cavity; X-ray diffractogram; Zn0.95Co0.05O; bound magnetic polaron model; cobalt atoms; crystallographic structure; dilute magnetic semiconductors; electron transport property; electronic structure; ferromagnetic ordering; frequency 2.45 GHz; microwave processing; photoelectron spectroscopy; polycrystalline ferromagnetic samples; room temperature magnetization; temperature 293 K to 298 K; Cobalt; Crystallography; Electrons; Magnetic analysis; Magnetic properties; Magnetic resonance; Magnetic semiconductors; Spectroscopy; X-ray diffraction; Zinc oxide; Cobalt doped zinc oxide; Dilute Magnetic Semi-conductor; Magnetization; Single mode microwave H-field resonator cavity; X-ray diffraction; X-ray photoelectron spectroscopy;
Conference_Titel :
Recent Advances in Microwave Theory and Applications, 2008. MICROWAVE 2008. International Conference on
Conference_Location :
Jaipur
Print_ISBN :
978-1-4244-2690-4
Electronic_ISBN :
978-1-4244-2691-1
DOI :
10.1109/AMTA.2008.4763009
