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Titolo:
MAGNETIC AND CONDUCTIVE PROPERTIES OF LA0.5PB0.5MNO3
Autore:
ROZENBERG E; GORODETSKY G; FROUMIN N; PELLEG J; POLAK M; FELNER I; CHAUDHURI BK;
Indirizzi:
BEN GURION UNIV NEGEV,DEPT MAT ENGN,POB 653 IL-84105 BEER SHEVA ISRAEL BEN GURION UNIV NEGEV,DEPT PHYS IL-84105 BEER SHEVA ISRAEL HEBREW UNIV JERUSALEM,RACAH INST PHYS IL-91904 JERUSALEM ISRAEL INDIAN ASSOC CULTIVAT SCI,DEPT SOLID STATE PHYS CALCUTTA 700032 W BENGAL INDIA
Titolo Testata:
Journal de physique. IV
fascicolo: P2, volume: 8, anno: 1998,
pagine: 359 - 362
SICI:
1155-4339(1998)8:P2<359:MACPOL>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
MAGNETORESISTANCE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
9
Recensione:
Indirizzi per estratti:
Citazione:
E. Rozenberg et al., "MAGNETIC AND CONDUCTIVE PROPERTIES OF LA0.5PB0.5MNO3", Journal de physique. IV, 8(P2), 1998, pp. 359-362

Abstract

The magnetic and conductive properties of polycrystalline La0.5Pb0.5MnO3 containing similar to 13at.% of a second phase Pb3Mn6O13, a ere investigated. The studies reported include measurements of magnetization, electrical resistivity and magnetoresistance, in a temperature range10 divided by 400 K and at applied magnetic fields up to 5 Tesla. It was found that the sample exhibits a ferromagnetic ordering with relatively low coercive field at room temperature. Measurements of field-cooled and reversed-field-cooled magnetization support models of coexisting magnetic phases in ferromagnetic La-based manganites. The resistivity measured exhibits a maximum at similar to 230 K and a broad shallow minimum at similar to 20 divided by 25 K. These features are also attributed to the temperature dependence of the magnetic inhomogeneities. Measurements of magnetoresistance show a characteristic giant effectat low temperatures.

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Documento generato il 25/09/20 alle ore 12:40:09