Electron transport and magnetic properties of La/sub 1-x/Sr/sub x/Co/sub 1-y/Ti/sub y/O/sub 3/ (x = 0/sup a/ or x = y/sup b/)

Journal Article · Mon Jan 31 23:00:00 EST 1983 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(83)90142-1· OSTI ID:5447398

Bahadur, D ^[1]; Parkash, O

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1. Indian Inst. of Tech., Kanpur, India

The two systems (a) and (b) for different values of x were synthesized. Their electron transport and magnetic properties show a change in behavior above a critical value of x. Unlike the system La/sub 1-x/Sr/sub x/CoO/sub 3/, itinerant electron ferromagnetism is not observed. This is explained on the basis of the absence of an itinerant band of Co/sup 4 +/ whose generation is restricted on account of substitution of Ti/sup 4 +/. Electron transport in these two systems is compared with that of LaCoO/sub 3/ or La/sub 1-x/Sr/sub x/CoO/sub 3/ and is discussed in view of the presence of different valence states of cobalt and change in crystal field splitting. Spin-state equilibria in these two systems are simiar to that in LaCoO/sub 3/.

• OSTI ID: 5447398
• Journal Information: J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 46:2; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ANGULAR MOMENTUM
CHALCOGENIDES
COBALT COMPOUNDS
COBALT OXIDES
COMPARATIVE EVALUATIONS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
MAGNETIC PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SPIN
STRONTIUM COMPOUNDS
STRONTIUM OXIDES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
VALENCE