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Browse Journals & Magazines > Magnetics, IEEE Transactions ...> Volume:44 Issue:11 Help

Magnetic and Magnetoresistive Properties of Pr _{1 - {\rm x}} Ca _{\rm x} CoO _{3} ({\rm x} =0.3, 0.5) Cobaltites

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4 Author(s)
Deac, I.G. ; Fac. of Phys., Univ. Babes-Bolyai, Cluj-Napoca ; Tetean, R. ; Andreica, D. ; Burzo, E.

Polycrystalline perovskite Pr0.7Ca0.3CoO3 and Pr0.5Ca0.5CoO3 have been investigated by electrical resistivity, magnetization, ac susceptibility, and mu SR measurements. The magnetic measurements data indicate that the samples have, at low temperatures, similar properties to the frustrated magnets. The muSR measurements, suggest the presence of magnetic clusters at low temperatures. The electrical behavior has the main features of conduction in a phase separated system: it shows negative magnetoresistance and it is controlled by grain-boundary effects.

Published in:
Magnetics, IEEE Transactions on  (Volume:44 ,  Issue: 11 )

Date of Publication: Nov. 2008

Page(s):
2922 - 2925
ISSN :
0018-9464
INSPEC Accession Number:
10362346
Digital Object Identifier :
10.1109/TMAG.2008.2001332
Product Type:
Journals & Magazines
Date of Current Version :
16 December 2008
Issue Date :
Nov. 2008
Sponsored by :
IEEE Magnetics Society

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