Paper Title:
Structural and Magnetic Properties of the Zn-Mn-O System
  Abstract

Zn-Mn-O semiconductor crystallites with nominal manganese concentration x = 0.01, 0.02, 0.04 and 0.10 were synthesized by a solid state reaction route using oxalate precursors. Thermal treatment procedure was carried out in air at different temperatures in the range 400 - 900°C. The samples were investigated by X-ray diffraction, magnetization measurements and electron paramagnetic resonance. X-ray analysis reveals that dominant crystal phase in the Zn-Mn-O system corresponds to the wurtzite structure of ZnO. Room temperature ferromagnetism is observed in the Zn-Mn-O samples with lower manganese concentration, x ≤ 0.04, thermally treated at low temperature (500°C). Saturation magnetization in the sample with x = 0.01 is found to be 0.05 μB/Mn. The ferromagnetic phase seems to be developed by Zn diffusion into Mn-oxide grains.

  Info
Periodical
Edited by
Dragan P. Uskoković, Slobodan K. Milonjić and Dejan I. Raković
Pages
95-100
DOI
10.4028/www.scientific.net/MSF.555.95
Citation
D. Milivojević, J. Blanuša, V. Spasojević, V. Kusigerski, B. Babić-Stojić, "Structural and Magnetic Properties of the Zn-Mn-O System", Materials Science Forum, Vol. 555, pp. 95-100, 2007
Online since
September 2007
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Zhi Gang Zhou, Zi Long Tang, Zhong Tai Zhang
Abstract:A number of paramagnetic defects and defect complexes in BaTiO3 have been detected by the Electron Paramagnetic Resonance (EPR) technique....
373
Authors: E.P. Skipetrov, E.A. Zvereva, A.N. Golovanov, N.A. Pichugin, A.E. Primenko, O.A. Savelieva, V.P. Zlomanov, A.A. Vinokurov
Abstract:The structural and magnetic properties as well as the electron paramagnetic resonance in Pb1-xVxTe (х0.7 at.%) solid solutions have been...
291
Authors: Yu Liang Zhang, Xiao Feng Li
Abstract:The structure and the magnetic properties of 3.0 and 0.3 at.% Mn-containing ZnO-based DMSs, synthesized by a straightforward and...
533
Authors: Aliaksandra Karabko, Anatoly Dostanko, Natalia Lapchuk, Pavels Onufrijevs
Abstract:Silicon p-type (100) wafers implanted with Ni, Co, Fe ions to a dose range of 3∙1013–3∙1016 cm-2 have been investigated by means of EPR. The...
82
Authors: Da Yong Lu, Xiu Yun Sun
Chapter 1: Materials Properties
Abstract:The electron paramagnetic resonance (EPR) technique was employed to investigate the point defects in barium strontium titanate ceramics. All...
1050