Document Detail


Implication of local moment at Ti and Fe sites for the electrical and magneto-transport properties of degenerate semiconducting Ti(1-x)Fe(x)O(2-d) epitaxial films.
MedLine Citation:
PMID:  22251929     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
We have investigated the effect of local magnetic moment on the electrical and magneto-transport properties of thin films of the degenerate semiconductor Ti(1-x)Fe(x)O(2-d) (x = 0,0.04). The electrical measurements of these films reveal high temperature metallic behavior and resistivity minima. The behavior below the resistivity minimum temperature is ascribed to Kondo like scattering. The coupling between the local moment and the charge carriers is reflected in the magnetoresistance measurements in these films. This work indicates competition between the magnetic ordering mechanism by J(RKKY) and the moment screening mechanism by J(Kondo). Accordingly the role of carrier density in achieving the magnetic ordering in such materials either by defect engineering or by transition metal doping is discussed.
Authors:
Komal Bapna; R J Choudhary; S K Pandey; D M Phase
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Publication Detail:
Type:  Journal Article     Date:  2012-01-18
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  24     ISSN:  1361-648X     ISO Abbreviation:  J Phys Condens Matter     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-01-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  England    
Other Details:
Languages:  eng     Pagination:  056004     Citation Subset:  IM    
Affiliation:
UGC DAE Consortium for Scientific Research, Khandwa Road, Indore-452001, India.
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