Gerhard Gritzner, Karl Kellner,
"Magnetic and Transport Properties of La0.67Pb0.33(Mn1-xCox)O3"
, in Acta Physica Polonica A, Vol. 113, Nummer 1, Seite(n) 251 - 254, 2008, ISSN: 1898-794X
Original Titel:
Magnetic and Transport Properties of La0.67Pb0.33(Mn1-xCox)O3
Sprache des Titels:
Englisch
Original Kurzfassung:
Detailed studies of temperature dependences of magnetization, AC susceptibility and electrical resistance were performed on La0.67Pb0.33(Mn1-xCox)O3 ceramics with x = 0.01 and 0.1. Typical features of both compounds are the hysteretic behavior between the zero-field-cooled magnetization regime and the field-cooled magnetization regime, a very weak field dependence of a maximum in zero-field-cooled magnetization and practically no frequency dependence of the peak in AC susceptibility χ"(T). Anomalies in the electrical resistance connected with the ferromagnetic transition at TC, the insulator-metal transitions at Tp and the re-entrant metal - isolator transition at T* are field dependent pointing to magnetic origin of these transitions. Colossal magnetoresistance was observed in both compounds.
Sprache der Kurzfassung:
Englisch
Journal:
Acta Physica Polonica A
Volume:
113
Number:
1
Seitenreferenz:
251 - 254
Erscheinungsjahr:
2008
ISSN:
1898-794X
Anzahl der Seiten:
4
Notiz zur Publikation:
Magnetic and Transport Properties of La0.67Pb0.33(Mn1-xCox)O3
M. Mihalik, V. Kavecansky, S. Mataš , M. Zentková, J. Ammer, K. Kellner and G. Gritzner
Acta Physica Polonica A, 113 (2008) 251 - 254
Forschungs-