scholarly journals Investigation of the room temperature ferro-magnetism in transition metal-doped ZnO thin films

2020 ◽  
Vol 126 (12) ◽  
Author(s):  
Arun Kumar ◽  
Pooja Dhiman ◽  
Sarveena ◽  
Sanjeev Aggarwal ◽  
Mahavir Singh
Keyword(s):  
Thin Films ◽  
Transition Metal ◽  
Room Temperature ◽  
Zno Thin Films ◽  
Doped Zno ◽  
Metal Doped

scholarly journals Room-Temperature Magneto-Optics of Ferromagnetic Transition-Metal-Doped ZnO Thin Films

2006 ◽  
Vol 96 (19) ◽  
Author(s):  
J. R. Neal ◽  
A. J. Behan ◽  
R. M. Ibrahim ◽  
H. J. Blythe ◽  
M. Ziese ◽  
...  
Keyword(s):  
Thin Films ◽  
Transition Metal ◽  
Room Temperature ◽  
Zno Thin Films ◽  
Ferromagnetic Transition ◽  
Doped Zno ◽  
Metal Doped

Characterization of dilute magnetic semiconducting transition metal doped ZnO thin films by sol–gel spin coating method

2014 ◽  
Vol 313 ◽  
pp. 870-876 ◽  
Author(s):  
G. Vijayaprasath ◽  
R. Murugan ◽  
G. Ravi ◽  
T. Mahalingam ◽  
Y. Hayakawa
Keyword(s):  
Thin Films ◽  
Transition Metal ◽  
Spin Coating ◽  
Sol Gel ◽  
Zno Thin Films ◽  
Spin Coating Method ◽  
Coating Method ◽  
Doped Zno ◽  
Metal Doped

scholarly journals Investigation of the room temperature ferromagnetism in transition metal doped ZnO thin films

2020 ◽  
Author(s):  
Arun Kumar ◽  
Pooja Dhiman ◽  
Sanjeev Aggarwal ◽  
Mahavir Singh
Keyword(s):  
Thin Films ◽  
Transition Metal ◽  
Structural Information ◽  
Room Temperature Ferromagnetism ◽  
Rf Magnetron Sputtering ◽  
Zno Thin Films ◽  
Average Grain Size ◽  
Vis Spectroscopy ◽  
Doped Zno ◽  
Metal Doped

Abstract In the present work, we have studied the ferromagnetic nature of the (Fe, Ni) co-doped Zn1-x-y NiyFexO (y = 0.01 and x = 0.01, 0.03, 0.05) thin films fabricated through the RF magnetron sputtering on Silicon (400) substrate. Structural information of the deposited transition metal-doped ZnO thin films was studied through X-ray Diffraction (XRD) techniques. The surface roughness and average grain size of the thin films examine through Atomic Force Microscopy (AFM). The optical band gaps of the thin films have been analyzed through the UV-Vis spectroscopy and it was appropriate for the optoelectronic devices. Tau’c Plots were used for the calculation of the band gap by extrapolating the (αhν) = 0, the straight-line portion of the plot to zero absorption coefficient. The magnetic study of these thin films confirmed the ferromagnetic (FM) behavior. RT-FM in all the deposited thin films was discuses on the base of polaron percolation theory.

Transition Metal-Doped ZnO: A Comparison of Optical, Magnetic, and Structural Behavior of Bulk and Thin Films

2006 ◽  
Vol 957 ◽  
Author(s):  
William E. Fenwick ◽  
Matthew H. Kane ◽  
Zaili Fang ◽  
Tahir Zaidi ◽  
Nola Li ◽  
...  
Keyword(s):  
Thin Films ◽  
Transition Metal ◽  
Optical Transmission ◽  
Magnetic Hysteresis ◽  
Structural Quality ◽  
Bulk Crystals ◽  
Transmission Measurements ◽  
Doped Zno ◽  
Metal Doped ◽  
Metal Incorporation

ABSTRACTTransition metal-doped ZnO bulk crystals and thin films have been investigated to determine the effects of transition metal incorporation on optical, magnetic, and structural properties of ZnO. A modified melt growth technique was used to grow bulk Zn1-xMnxO, Zn1-xCoxO, and Zn1-xFexO. Optical transmission measurements show an apparent shift in absorption edge with increasing transition metal incorporation. Raman spectroscopy also shows increasing lattice disorder with increasing transition metal concentration. ZnO thin films doped with Ni, Co, and Gd were grown by metalorganic chemical vapor deposition (MOCVD). While the Co-doped thin films showed antiferromagnetic behavior, magnetic hysteresis was observed in the Ni-doped and Gd-doped thin films. Structural quality was verified with X-ray diffraction (XRD), and optical properties were investigated using room temperature photoluminescence (PL) and optical transmission measurements. Properties of ZnO:TM bulk crystals and thin films are compared and used to discuss possible origins of ferromagnetism in these materials.

Post-annealing effect on the room-temperature ferromagnetism in Cu-doped ZnO thin films

2015 ◽  
Vol 117 (17) ◽  
pp. 17B901 ◽  
Author(s):  
Yu-Min Hu ◽  
Sih-Sian Li ◽  
Chein-Hsiun Kuang ◽  
Tai-Chun Han ◽  
Chin-Chung Yu
Keyword(s):  
Thin Films ◽  
Room Temperature ◽  
Room Temperature Ferromagnetism ◽  
Annealing Effect ◽  
Zno Thin Films ◽  
Post Annealing ◽  
Doped Zno
Sign in / Sign up

Export Citation Format

Share Document