Chin. Phys. Lett.  2012, Vol. 29 Issue (5): 057502    DOI: 10.1088/0256-307X/29/5/057502
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
Chromium Substitution Effect on the Magnetic Structure of Iron Oxides
Osman Murat Ozkendir**
Mersin University, Tarsus Technical Faculty of Education, Tarsus, Turkey UVSOR Facility, Institute for Molecular Science, Okazaki 444-8585, Japan
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Osman Murat Ozkendir 2012 Chin. Phys. Lett. 29 057502
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Abstract The local magnetic and electronic structures of chromium substituted iron oxide polycrystalline samples are investigated via Fe L-edge x-ray absorption near-edge structural and magnetic circular dichroism measurements. A strong dependence of atomic magnetic levels on the applied external magnetic field is observed. The magnetic behavior of Cr-doped iron oxides are determined to be dominantly governed by the dd hybridization between Fe and Cr valence levels. In addition, the formation of CrO2 and Cr2O3 chromium oxide clusters in the sample are observed to determine the magnetic ordering, i.e. anti-ferromagnetic or ferromagnetic with the changing external magnetic fields. The results highly agree with the previous studies.
Received: 12 December 2011      Published: 30 April 2012
PACS:  75.10.-b (General theory and models of magnetic ordering)  
  75.25.+z  
  75.50.-y (Studies of specific magnetic materials)  
  78.40.-g  
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https://cpl.iphy.ac.cn/10.1088/0256-307X/29/5/057502       OR      https://cpl.iphy.ac.cn/Y2012/V29/I5/057502
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Osman Murat Ozkendir
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