Persistent photoinduced magnetization in the coexisting spin-glass and ferromagnetic phases of Pr0.9Ca0.1MnO3 thin film

S. Majumdar; H. Huhtinen; M. Svedberg; P. Paturi; S. Granroth; K. Kooser

doi:10.1088/0953-8984/23/46/466002

Persistent photoinduced magnetization in the coexisting spin-glass and ferromagnetic phases of Pr0.9Ca0.1MnO3 thin film

S. Majumdar, H. Huhtinen, M. Svedberg, P. Paturi, S. Granroth, K. Kooser

Not published at VTT

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Abstract

The persistent photoinduced magnetization (PPM) in the low bandwidth material Pr1−xCaxMnO3 at the low hole doping level of x = 0.1 is reported. Upon zero-field cooling under photoexcitation, significant improvement of the ferromagnetic (FM) ordering was observed in the low temperature spin-glass phase. However, upon field cooling, the FM ordering was found to be suppressed due to weakening of the double-exchange interaction. High kinetic energy x-ray photoelectron spectroscopy measurements indicated a slight increase in the Mn3+ peak under photoexcitation which clarifies the weakening of the FM interaction. The fast relaxation of the PPM is discussed in view of localization of spin polarons in sites of magnetic disorders and the results are compared with previous reports of PPM in intermediate bandwidth La0.9Ca0.1MnO3 samples.

Original language	English
Article number	466002
Journal	Journal of Physics: Condensed Matter
Volume	23
DOIs	https://doi.org/10.1088/0953-8984/23/46/466002
Publication status	Published - 2011
MoE publication type	A1 Journal article-refereed

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Majumdar, S., Huhtinen, H., Svedberg, M., Paturi, P., Granroth, S., & Kooser, K. (2011). Persistent photoinduced magnetization in the coexisting spin-glass and ferromagnetic phases of Pr0.9Ca0.1MnO3 thin film. Journal of Physics: Condensed Matter, 23, [466002]. https://doi.org/10.1088/0953-8984/23/46/466002

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abstract = "The persistent photoinduced magnetization (PPM) in the low bandwidth material Pr1−xCaxMnO3 at the low hole doping level of x = 0.1 is reported. Upon zero-field cooling under photoexcitation, significant improvement of the ferromagnetic (FM) ordering was observed in the low temperature spin-glass phase. However, upon field cooling, the FM ordering was found to be suppressed due to weakening of the double-exchange interaction. High kinetic energy x-ray photoelectron spectroscopy measurements indicated a slight increase in the Mn3+ peak under photoexcitation which clarifies the weakening of the FM interaction. The fast relaxation of the PPM is discussed in view of localization of spin polarons in sites of magnetic disorders and the results are compared with previous reports of PPM in intermediate bandwidth La0.9Ca0.1MnO3 samples.",

author = "S. Majumdar and H. Huhtinen and M. Svedberg and P. Paturi and S. Granroth and K. Kooser",

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T1 - Persistent photoinduced magnetization in the coexisting spin-glass and ferromagnetic phases of Pr0.9Ca0.1MnO3 thin film

AU - Majumdar, S.

AU - Huhtinen, H.

AU - Svedberg, M.

AU - Paturi, P.

AU - Granroth, S.

AU - Kooser, K.

PY - 2011

Y1 - 2011

N2 - The persistent photoinduced magnetization (PPM) in the low bandwidth material Pr1−xCaxMnO3 at the low hole doping level of x = 0.1 is reported. Upon zero-field cooling under photoexcitation, significant improvement of the ferromagnetic (FM) ordering was observed in the low temperature spin-glass phase. However, upon field cooling, the FM ordering was found to be suppressed due to weakening of the double-exchange interaction. High kinetic energy x-ray photoelectron spectroscopy measurements indicated a slight increase in the Mn3+ peak under photoexcitation which clarifies the weakening of the FM interaction. The fast relaxation of the PPM is discussed in view of localization of spin polarons in sites of magnetic disorders and the results are compared with previous reports of PPM in intermediate bandwidth La0.9Ca0.1MnO3 samples.

AB - The persistent photoinduced magnetization (PPM) in the low bandwidth material Pr1−xCaxMnO3 at the low hole doping level of x = 0.1 is reported. Upon zero-field cooling under photoexcitation, significant improvement of the ferromagnetic (FM) ordering was observed in the low temperature spin-glass phase. However, upon field cooling, the FM ordering was found to be suppressed due to weakening of the double-exchange interaction. High kinetic energy x-ray photoelectron spectroscopy measurements indicated a slight increase in the Mn3+ peak under photoexcitation which clarifies the weakening of the FM interaction. The fast relaxation of the PPM is discussed in view of localization of spin polarons in sites of magnetic disorders and the results are compared with previous reports of PPM in intermediate bandwidth La0.9Ca0.1MnO3 samples.

U2 - 10.1088/0953-8984/23/46/466002

DO - 10.1088/0953-8984/23/46/466002

M3 - Article

VL - 23

JO - Journal of Physics: Condensed Matter

JF - Journal of Physics: Condensed Matter

SN - 0953-8984

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10.1088/0953-8984/23/46/466002