Cobalt and nickel induced ferromagnetism and metallicity in Ca[sub 1[minus]x]Sm[sub x]MnO[sub 3]: Influence upon colossal magnetoresistive (CMR) properties
Journal Article
·
· Materials Research Bulletin
- Univ. de Caen (France)
The doping of Mn sites with Co and Ni was studied for Ca[sub 0.85]Sm[sub 0.15]MnO[sub 3] and Ca[sub 0.80]Sm[sub 0.20]MnO[sub 3] and compared with Cr doping in the same oxides. It is shown that the three dopants induce strong ferromagnetic interactions and metallicity in both manganites, and that they destroy CMR effect in Ca[sub 0.85]Sm[sub 0.15]MnO[sub 3] and induce CMR effect in Ca[sub 0.80]Sm[sub 0.20]MnO[sub 3]. The optimal doping level x for reaching the maximum resistivity ratio is larger for Cr (x = 0.08) than for Co and Ni (x = 0.06).
- OSTI ID:
- 6384872
- Journal Information:
- Materials Research Bulletin, Journal Name: Materials Research Bulletin Vol. 34:3; ISSN MRBUAC; ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COBALT
CONCENTRATION RATIO
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
FERROMAGNETISM
MAGNETISM
MAGNETORESISTANCE
MANGANESE COMPOUNDS
MANGANESE OXIDES
MATERIALS
METALS
NICKEL
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SAMARIUM COMPOUNDS
SAMARIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM OXIDES
CHALCOGENIDES
COBALT
CONCENTRATION RATIO
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
FERROMAGNETISM
MAGNETISM
MAGNETORESISTANCE
MANGANESE COMPOUNDS
MANGANESE OXIDES
MATERIALS
METALS
NICKEL
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SAMARIUM COMPOUNDS
SAMARIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS