Diluted magnetic semiconductors: Mn/Co-doped ZnO nanorods as case study

2008 ◽  
Vol 18 (43) ◽  
pp. 5208 ◽  
Author(s):  
Igor Djerdj ◽  
Georg Garnweitner ◽  
Denis Arčon ◽  
Matej Pregelj ◽  
Zvonko Jagličić ◽  
...  
Keyword(s):  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Zno Nanorods ◽  
Doped Zno ◽  
Diluted Magnetic ◽  
Co Doped

Effects of Fe Doping on the Crystal Structures and Photoluminescence of ZnO Nanorods

2014 ◽  
Vol 636 ◽  
pp. 105-109
Author(s):  
Chun Ping Li ◽  
Hao Ran Ba ◽  
Kun Jin
Keyword(s):  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Zno Nanorods ◽  
Synthesis Method ◽  
Wet Chemical Synthesis ◽  
Transmission Electron ◽  
Doped Zno ◽  
Diluted Magnetic ◽  
Morphology Characterization ◽  
Induced Defects

The 5% Fe-doped ZnO nanorods (Zn0.95Fe0.05O) were prepared successfully by the wet-chemical synthesis method. Structure and morphology characterization were demonstrated by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Laser power dependent photoluminescence (PL) spectra were measured to study the electronic structures of the Fe-doped ZnO-based diluted magnetic semiconductors. The contraction of lattice constant and structured green-yellow-red emissions were analyzed. Such investigations confirmed that the induced defects or impurities originating from Fe ions.

Magnetic properties of Co-doped ZnO diluted magnetic semiconductors prepared by low-temperature mechanosynthesis

2006 ◽  
Vol 422 (4-6) ◽  
pp. 529-533 ◽  
Author(s):  
S. Colis ◽  
H. Bieber ◽  
S. Bégin-Colin ◽  
G. Schmerber ◽  
C. Leuvrey ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Low Temperature ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Doped Zno ◽  
Diluted Magnetic ◽  
Co Doped

Synthesis and Characterization of Ni-Doped ZnO Nanorods Prepared by Hydrothermal Method

2013 ◽  
Vol 785-786 ◽  
pp. 582-585
Author(s):  
Zhi Qiang Wei ◽  
Xiao Juan Wu ◽  
Ling Ling Zhang ◽  
Wang Jun Feng ◽  
Hua Yang
Keyword(s):  
Hydrothermal Method ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Hexagonal Phase ◽  
Zno Nanorods ◽  
X Ray ◽  
Transmission Electron ◽  
Doped Zno ◽  
Diluted Magnetic ◽  
Constituent Elements

Ni-doped ZnO diluted magnetic semiconductors nanorods were successfully synthesized by hydrothermal method. The crystal structure, morphology, constituent elements and optical proprety of the products using this method were investigated via X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray energy dispersive spectrometry (XEDS) and ultraviolet-visible spectroscopy (UV-vis). The experiment results show that the morphology of samples were nanorods with good dispersion, all the diffraction peaks correspond to the wurtzite structure hexagonal phase, no other impurity phase appeare, and the Ni2+ions successfully substituted for the lattice site and generate single-phase Zn1-xNixO. The band gap increases firstly and reduces afterward with the increase of Ni2+contents.

Stabilization of ferromagnetism in (Cr, V) co-doped ZnO diluted magnetic semiconductors

2013 ◽  
Vol 340 ◽  
pp. 86-90 ◽  
Author(s):  
N. Mamouni ◽  
A. El Kenz ◽  
H. Ez-Zahraouy ◽  
M. Loulidi ◽  
A. Benyoussef ◽  
...  
Keyword(s):  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Doped Zno ◽  
Diluted Magnetic ◽  
Co Doped

An Oxide-Diluted Magnetic Semiconductor: Co-Doped ZnO

2013 ◽  
Vol 652-654 ◽  
pp. 585-589 ◽  
Author(s):  
Tong Li ◽  
Qiong Jie ◽  
Yu Zhang ◽  
Ya Xin Wang ◽  
Xiao Chang Ni
Keyword(s):  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Diluted Magnetic Semiconductor ◽  
Experimental Studies ◽  
Magnetic Semiconductor ◽  
Wide Band ◽  
Wide Band Gap ◽  
Doped Zno ◽  
Diluted Magnetic ◽  
Co Doped

The discovery of ferromagnetism (FM) in wide band-gap semiconductors doped with transition metals (TM), known as diluted magnetic semiconductors (DMSs), has attracted much interest. These materials are applicable to spin-based optoelectronic devices working at room temperature (RT). Among DMSs, the system of Co-doped ZnO is considered as the most promising candidate, which was expected to robust magnetism. This paper focuses primarily on the recent progress in the experimental studies of ZnO:Co DMSs. The magnetic properties and possible mechanism of ZnO:Co DMSs prepared by different methods are summarized and reviewed.

Assessment of the H2 Followed by Air Sintering of Co-doped In2O3 Based Diluted Magnetic Semiconductors

2017 ◽  
Vol 9 (2) ◽  
pp. 02003-1-02003-3
Author(s):  
Rana Mukherji ◽  
◽  
Vishal Mathur ◽  
Arvind Samariya ◽  
Manishita Mukherji ◽  
...  
Keyword(s):  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Diluted Magnetic ◽  
Co Doped
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