Посилання:Magnetic and transport properties of La₀.₇Sr₀.₃MnO₃/Pr₀.₆₅Ca₀.₃₅MnO₃ multilayered films with different microstructure / V.G. Prokhorov, V.S. Flis, G.G. Kaminsky, Y.P. Lee // Физика низких температур. — 2004. — Т. 30, № 6. — С. 619-625. — Бібліогр.: 30 назв. — англ.
Підтримка:This work was supported by the KOSEF through
the Quantum Photonic Science Research Center.
The magnetic and transport properties of single-crystal and polycrystalline
La₀.₇Sr₀.₃MnO₃/Pr₀.₆₅Ca₀.₃₅MnO₃ multilayered films are investigated in the temperature range
4.2–300 K. It is shown that the transformation from an incoherent to a coherent interface between
layers leads to an enhancement of the ferromagnetic coupling, which is accompanied by a modification
in the temperature dependence of the resistance and by a grown negative magnetoresistance ratio
at room temperature. The influence of grain boundaries on the transport of carriers in the multilayered
films is discussed on the basis of modern theoretical approaches.