Published January 1, 2010 | Version v1
Journal article Metadata-only

Magnetic properties of nanocrystalline ZnO doped with MnO and CoO

Creators

  • 1. Institute of Physics, Polish Academy of Sciences, Institute of Physics, Polish Academy of Sciences, Al. Lotnikow 32/46, 02-668 Warsaw (Poland)
  • 2. Institute of Physics, Belgrade University, Pregrevica 118, 11080 Belgrade (Serbia)
  • 3. Szczecin University of Technology, Institute of Chemical and Environment Engineering, Pulaskiego 10, 70-322 Szczecin (Poland)

Description

We have studied the magnetic properties of ZnO nanocrystals doped with MnO and CoO in the wide range of magnetic dopant (from 5 to 95 wt. %), synthetized by wet chemical method. The samples were characterized by means of XRD and micro-Raman spectroscopy. The results of systematic measurements of magnetic susceptibility as a function of temperature and frequency as well as SQUID magnetization are presented. We observed different types of magnetic behavior. ZnO nanocrystals doped with CoO demonstrate Curie-Weiss behavior at higher temperatures. For samples doped with MnO, we observed the superparamagnetism above the blocking temperature.

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/200/7/072058

Additional details

Identifiers

DOI
10.1088/1742-6596/200/7/072058;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
200
Journal Issue
7
Journal Page Range
[4 p.]
ISSN
1742-6596

Conference

Title
international conference on magnetism
Acronym
ICM 2009
Dates
26-31 Jul 2009
Place
Karlsruhe (Germany)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42041736
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
COBALT OXIDES; CRYSTALS; CURIE-WEISS LAW; DOPED MATERIALS; MAGNETIC MATERIALS; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; MANGANESE OXIDES; NANOSTRUCTURES; RAMAN SPECTROSCOPY; SQUID DEVICES; SUPERPARAMAGNETISM; TEMPERATURE DEPENDENCE; X-RAY DIFFRACTION; ZINC OXIDES
Descriptors DEC
CHALCOGENIDES; COBALT COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; ELECTRONIC EQUIPMENT; EQUIPMENT; FLUXMETERS; LASER SPECTROSCOPY; MAGNETIC PROPERTIES; MAGNETISM; MANGANESE COMPOUNDS; MATERIALS; MEASURING INSTRUMENTS; MICROWAVE EQUIPMENT; OXIDES; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SCATTERING; SPECTROSCOPY; SUPERCONDUCTING DEVICES; TRANSITION ELEMENT COMPOUNDS; ZINC COMPOUNDS