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Titolo:
Isotope effect for transport and magnetic properties of La0.35Pr0.35Ca0.3MnO3 thin films
Autore:
Babushkina, NA; Belova, LM; Chistotina, EA; Gorbenko, OY; Kaul, AR; Guttler, B; Kugel, KI;
Indirizzi:
Russian Res Ctr, Kurchatov Inst, Moscow 123182, Russia Russian Res Ctr Moscow Russia 123182 rchatov Inst, Moscow 123182, Russia Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119899, Russia Moscow MVLomonosov State Univ Moscow Russia 119899 oscow 119899, Russia Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany Phys Tech Bundesanstalt Braunschweig Germany D-38116 aunschweig, Germany Russian Acad Sci, Inst Theoret & Appl Electrodynam, Moscow 127412, Russia Russian Acad Sci Moscow Russia 127412 lectrodynam, Moscow 127412, Russia
Titolo Testata:
EUROPEAN PHYSICAL JOURNAL B
fascicolo: 3, volume: 19, anno: 2001,
pagine: 409 - 415
SICI:
1434-6028(200102)19:3<409:IEFTAM>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
MANGANESE PEROVSKITES; DOPED LAMNO3; OXYGEN; MAGNETORESISTANCE; TRANSITION; MANGANITES; STATE; EXCHANGE; (LA1-YPRY)(0.7)CA0.3MNO3; SUBSTITUTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
30
Recensione:
Indirizzi per estratti:
Indirizzo: Babushkina, NA Russian Res Ctr, Kurchatov Inst, Kurchatov Sqr 1, Moscow 123182, Russia Russian Res Ctr Kurchatov Sqr 1 Moscow Russia 123182 ussia
Citazione:
N.A. Babushkina et al., "Isotope effect for transport and magnetic properties of La0.35Pr0.35Ca0.3MnO3 thin films", EUR PHY J B, 19(3), 2001, pp. 409-415

Abstract

The effect of O-16 --> O-18 isotope substitution on electrical resistivity, magnetoresistance, and ac magnetic susceptibility was studied for La0.35Pr0.35Ca0.3MnO3 epitaxial thin films deposited onto LaAlO3 and SrTiO3 substrates. For the films on LaAlO3, the isotope substitution resulted in the reversible transition from a metal-like to insulating state. The applied magnetic field (H greater than or equal to 2 T) transformed the sample with O-18back to the metallic state. The films on SrTiO3 remained metallic at low temperatures for both O-16 and O-18, but the shift of the resistivity peak corresponding to onset of metallic state exceeded 63 K after O-16 --> O-18 substitution. The temperature dependence of both resistivity and magnetic susceptibility was characterized by hysteresis, especially pronounced in the case of the films on LaAlO3. Such a behavior gives certain indications of the phase separation characteristic of interplay between ferromagnetism and charge ordering.

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Documento generato il 14/07/20 alle ore 11:27:21