Magneto-transport study of manganites (La0.75-xGdx)Ca0.25MnO3

The La0.75-xGdxCa0.25MnO3 manganites with 0.0 < =x < =0.75 are characterized by magnetic, electrical resistivity and thermoelectric measurements. The isovalent Gd substitution causes that the metal-insulator transition is removed, whereas the negative magnetoresistance effect is weak. The elec...

Full description

Saved in:
Bibliographic Details
Published inJournal of alloys and compounds Vol. 437; no. 1-2; pp. 12 - 15
Main Authors PEKALA, M, DROZD, V. A
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier 28.06.2007
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Magnetic properties and materials
Magnetotransport phenomena, materials for magnetotransport
Manganites
Physics
Negative magnetoresistance
Electrical conductivity
Magneto-transport; Electrical resistivity; Polaron model
Metal-insulator transition
75.47.Lx; 75.30.Cr; 75.47.Gk; 72.20.Pa
Magnetoresistance
Small polaron
Manganites
Online AccessGet full text

Cover

More Information
Summary:The La0.75-xGdxCa0.25MnO3 manganites with 0.0 < =x < =0.75 are characterized by magnetic, electrical resistivity and thermoelectric measurements. The isovalent Gd substitution causes that the metal-insulator transition is removed, whereas the negative magnetoresistance effect is weak. The electrical resistivity is described by the small polaron model.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2006.07.086