Role of oxygen vacancies in tuning magnetic properties of Co-doped SnO2 insulating films

2007 ◽  
Vol 101 (12) ◽  
pp. 123907 ◽  
Author(s):  
X. F. Liu ◽  
Y. Sun ◽  
R. H. Yu
Keyword(s):  
Magnetic Properties ◽  
Oxygen Vacancies ◽  
Insulating Films ◽  
Co Doped

Role of oxygen vacancies in deciding the high temperature magnetic properties of Ba and Sm substituted BiFeO 3 ceramics

2016 ◽  
Vol 677 ◽  
pp. 252-257 ◽  
Author(s):  
N. Zhang ◽  
Y.W. Yang ◽  
J. Su ◽  
D.Z. Guo ◽  
X.N. Liu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
High Temperature ◽  
Oxygen Vacancies

scholarly journals Role of the microstructure on the magnetic properties of Co-doped ZnO nanoparticles

2005 ◽  
Vol 86 (10) ◽  
pp. 103113 ◽  
Author(s):  
B. Martínez ◽  
F. Sandiumenge ◽  
Ll. Balcells ◽  
J. Arbiol ◽  
F. Sibieude ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Zno Nanoparticles ◽  
Doped Zno ◽  
Co Doped

The origin of ferromagnetism of Co-doped TiO2 nanoparticles: Experiments and theory investigation

2016 ◽  
Vol 30 (32n33) ◽  
pp. 1650296 ◽  
Author(s):  
Suyin Zhang ◽  
Zhongpo Zhou ◽  
Rui Xiong ◽  
Jing Shi ◽  
Zhihong Lu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Saturation Magnetization ◽  
First Principles ◽  
Photoelectron Spectroscopy ◽  
Oxygen Vacancies ◽  
First Principles Calculation ◽  
Ferromagnetic Behavior ◽  
X Ray ◽  
3D Electron ◽  
Co Doped

A series of Ti[Formula: see text]Co[Formula: see text]O[Formula: see text] ([Formula: see text] = 0.01, 0.03, 0.05, 0.07) nanoparticles were synthesized by sol–gel method. The X-ray diffraction, transmission electron microscopy, Raman analysis and X-ray photoelectron spectroscopy ruled out the signatures of Ti[Formula: see text], Co-clusters or any other oxides of Co. The ferromagnetic behavior was clearly observed at room temperature in doped samples with saturation magnetization [Formula: see text] of the order of 0.008–0.035 emu/g depending on doping concentrations. The saturation magnetization is found to be increased with the Co contents increasing from 1% to 7%. From the plot of the M–T curve, we obtain the [Formula: see text] as [Formula: see text][Formula: see text]515 K for 5% Co-doped TiO2. Oxygen vacancies were detected from the photoluminescence (PL) measurement. Magnetic properties analyses and PL analyses showed that oxygen vacancies probably played a major role in ferromagnetism of the Ti[Formula: see text]Co[Formula: see text]O2 system with Co substituting for Ti. The first-principles calculation was performed to investigate the magnetic properties of Co-doped TiO2 nanoparticles. It can be found that the major magnetic moment is from the 3d electron of Co. The experiment results are consistent with the first-principles calculation. The ferromagnetism derived from the spin-split of O-2p and Co-3d electron states caused by p–d orbit hybridization.

The Role of Oxygen Vacancies on Magnetic Properties of LSMO

2011 ◽  
Author(s):  
A. A. Alharbi ◽  
M. Alkahtani ◽  
O. Al-Dossary ◽  
Ali Al-Hajry ◽  
Ahmad Umar ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Oxygen Vacancies

The role of oxygen vacancies and their location in the magnetic properties of Ce1−xCuxO2−δ nanorods

2015 ◽  
Vol 17 (5) ◽  
pp. 3072-3080 ◽  
Author(s):  
M. I. B. Bernardi ◽  
A. Mesquita ◽  
F. Béron ◽  
K. R. Pirota ◽  
A. O. de Zevallos ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Dilute Magnetic Semiconductor ◽  
Oxygen Vacancies ◽  
Surface Effect ◽  
Magnetic Semiconductor ◽  
Ferromagnetic Order

Ceria (CeO2) is a promising dilute magnetic semiconductor. The ferromagnetic order has proven to be an surface effect.

Role of Co Clusters and Oxygen Vacancies in the Magnetic and Transport Properties of Co-Doped In2O3 Films

2014 ◽  
Vol 118 (19) ◽  
pp. 10448-10454 ◽  
Author(s):  
Yukai An ◽  
Dongyan Yang ◽  
Guanxiong Ma ◽  
Yi Zhu ◽  
Shiqi Wang ◽  
...  
Keyword(s):  
Transport Properties ◽  
Oxygen Vacancies ◽  
Co Doped
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