Cation dopant distributions in nanostructures of transition-metal doped ZnO: Monte Carlo simulations

2009 ◽  
Vol 79 (7) ◽  
Author(s):  
Timothy C. Droubay ◽  
Tiffany C. Kaspar ◽  
Bryce P. Kaspar ◽  
Scott A. Chambers
Keyword(s):  
Monte Carlo ◽  
Transition Metal ◽  
Monte Carlo Simulations ◽  
Doped Zno ◽  
Metal Doped

Carrier induced ferromagnetism in Mn-doped ZnO: Monte Carlo simulations

2008 ◽  
Vol 92 (15) ◽  
pp. 152511 ◽  
Author(s):  
T. M. Souza ◽  
I. C. da Cunha Lima ◽  
M. A. Boselli
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Doped Zno ◽  
Mn Doped

Magnetic Phase Diagram of Transition Metal Doped ZnO from Density Functional Theory Calculations and Monte Carlo Simulations

2010 ◽  
Vol 1260 ◽  
Author(s):  
Sanjeev K. Nayak ◽  
Heike C. Herper ◽  
Peter Entel
Keyword(s):  
Monte Carlo ◽  
Curie Temperature ◽  
Monte Carlo Simulations ◽  
Ab Initio ◽  
Density Functional ◽  
Magnetic Phase Diagram ◽  
Density Functional Theory Calculations ◽  
Antiferromagnetic Coupling ◽  
Doped Zno ◽  
Co Concentrations

AbstractTransition metals doped ZnO are possible candidates for multiferroics. Here, we have investigated the evolution of ferromagnetism due to Co dopants. The magnetic properties have been studied for Co concentrations from 0 to 100% by using ab-initio methods, i.e., KKR Green's function techniques. In order to estimate the Curie temperature we have performed Monte Carlo simulations with ab-initio calculated exchange parameters.From our calculations the onset of ferromagnetism occurs between 5 to 20% of Co depending on the numerical details of KKR method used. For Co concentrations larger than 50% the system is dominated by antiferromagnetic coupling and no Curie temperature can be obtained.

Magnetism in transition-metal-doped ZnO: A first-principles study

2012 ◽  
Vol 112 (2) ◽  
pp. 023913 ◽  
Author(s):  
Gangxu Gu ◽  
Gang Xiang ◽  
Jia Luo ◽  
Hongtao Ren ◽  
Mu Lan ◽  
...  
Keyword(s):  
Transition Metal ◽  
First Principles ◽  
First Principles Study ◽  
Doped Zno ◽  
Metal Doped

Field effect controlled ferromagnetism in transition metal doped ZnO

2008 ◽  
Author(s):  
E. Bellingeri ◽  
L. Pellegrino ◽  
M. Biasotti ◽  
I. Pallecchi ◽  
G. Canu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Field Effect ◽  
Doped Zno ◽  
Metal Doped

Catalytic destruction of 2,4-D in aqueous environment using transition metal-doped ZnO nanoparticles under ultrasonic waves, UV and visible light

2021 ◽  
Vol 226 ◽  
pp. 137-146
Author(s):  
Roya Ebrahimi ◽  
Afshin Maleki ◽  
Kazem Godini ◽  
Reza Rezaee ◽  
Ali Jafari ◽  
...  
Keyword(s):  
Transition Metal ◽  
Visible Light ◽  
Zno Nanoparticles ◽  
Ultrasonic Waves ◽  
Aqueous Environment ◽  
Catalytic Destruction ◽  
Doped Zno ◽  
Metal Doped

Characterization of bulk crystals of transition metal doped ZnO for spintronic applications

2003 ◽  
Vol 799 ◽  
Author(s):  
M. H. Kane ◽  
R. Varatharajan ◽  
Z. C. Feng ◽  
S. Kandoor ◽  
J. Nause ◽  
...  
Keyword(s):  
Transition Metal ◽  
Lattice Parameter ◽  
X Ray Diffraction ◽  
Absorption Bands ◽  
Growth Technique ◽  
Undoped Material ◽  
Doped Zno ◽  
Metal Doped ◽  
The Individual

ABSTRACTIn this work, we report on the material properties of ZnO doped with Mn, Co, and Fe grown by a modified melt growth technique. X-ray diffraction measurements show that transition metals can be incorporated on Zn sites; an increase in the lattice parameter is apparent with increasing doping level. UV-visible transmission and reflectance measurements have also been performed. Absorption bands in the visible regime are distinctive to the individual transition metal dopants. A noticeable shift in the optical band edge has been observed from these Mn/Co/Fe-doped ZnO crystals in comparison with the undoped material. ZnO may also provide a suitable platform for the incorporation of transition metal elements through high temperature near equilibrium growth processes; however, further work is required in order to employ these materials for spintronic applications.

Structural and magnetic properties of transition metal doped ZnO films

2010 ◽  
Vol 518 (8) ◽  
pp. 2152-2156 ◽  
Author(s):  
C.G. Jin ◽  
Y.Gao ◽  
X.M. Wu ◽  
M.L. Cui ◽  
L.J. Zhuge ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Transition Metal ◽  
Zno Films ◽  
Structural And Magnetic Properties ◽  
Doped Zno ◽  
Metal Doped

Transition Metal Doped ZnO

2019 ◽  
pp. 81-102
Author(s):  
David Norton ◽  
Stephen J. Pearton ◽  
Mathew P. Ivill ◽  
Fan Ren
Keyword(s):  
Transition Metal ◽  
Doped Zno ◽  
Metal Doped

Transition Metal Doped ZnO

2010 ◽  
pp. 81-102
Author(s):  
David Norton ◽  
Stephen Pearton ◽  
Mathew Ivill ◽  
Fan Ren
Keyword(s):  
Transition Metal ◽  
Doped Zno ◽  
Metal Doped

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.

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