Unconventional critical behavior of magnetic susceptibility as a consequence of phase separation and cluster formation in La0.7Ca0.3MnO3 thin films

: Huhtinen H, Laiho R, Lahderanta E, Salminen J, Lisunov KG, Zakhvalinskii VS

Publisher: AMER INST PHYSICS

: 2002

: Journal of Applied Physics

: JOURNAL OF APPLIED PHYSICS

: J APPL PHYS

: 91

: 10

: 7944

: 7946

: 3

: 0021-8979

DOI: https://doi.org/10.1063/1.1448309

Nonuniversal critical behavior of the dc magnetic susceptibility chi(-1)(T)-chi(-1)(T-C)similar to(T/T-C-1)(gamma)equivalent totau(gamma) is observed near the paramagnetic (PM) to ferromagnetic (FM) transition in La0.7Ca0.3MnO3 film samples. The value of gammaapproximate to1.4 obtained for 0