The effect of oxygen on the Jahn-Teller distortion and magnetization dynamics of Pr0.9Ca0.1MnO3 thin films



: S Majumdar, H Huhtinen, P Paturi, R Palai

Publisher: IOP PUBLISHING LTD

: 2013

: Journal of Physics: Condensed Matter

: JOURNAL OF PHYSICS-CONDENSED MATTER

: J PHYS-CONDENS MAT

: ARTN 066005

: 6

: 25

: 6

: 9

: 0953-8984

DOI: https://doi.org/10.1088/0953-8984/25/6/066005(external)


We report on the effect of oxygen on the Jahn-Teller distortion and dynamic magnetic properties of low hole-doped Pr0.9Ca0.1MnO3 thin films, using micro-Raman spectroscopy and the temperature dependent ac susceptibility, as a function of the frequency, dc field bias, and thermal cycles. The as-grown and vacuum annealed thin films show a high amount of magnetic frustration and inferior ferromagnetic ordering compared with the oxygen annealed thin films. It has been found that the amount of magnetic frustration in the film is interlinked with the Jahn-Teller distortion and domain wall dynamics. An attempt has been made to understand the origin and nature of the magnetic frustration.



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