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

Research output: Contribution to journalArticleScientificpeer-review

16 Citations (Scopus)

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 languageEnglish
Article number466002
JournalJournal of Physics: Condensed Matter
Volume23
DOIs
Publication statusPublished - 2011
MoE publication typeA1 Journal article-refereed

Fingerprint

Spin glass
spin glass
Magnetization
Photoexcitation
photoexcitation
Thin films
magnetization
thin films
Cooling
bandwidth
Bandwidth
cooling
Polarons
Exchange interactions
polarons
Photoelectron spectroscopy
Kinetic energy
x ray spectroscopy
kinetic energy
Doping (additives)

Cite this

@article{095700d8a3fd4762b1bfcc7f4c0026f2,
title = "Persistent photoinduced magnetization in the coexisting spin-glass and ferromagnetic phases of Pr0.9Ca0.1MnO3 thin film",
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",
year = "2011",
doi = "10.1088/0953-8984/23/46/466002",
language = "English",
volume = "23",
journal = "Journal of Physics: Condensed Matter",
issn = "0953-8984",
publisher = "Institute of Physics IOP",

}

Persistent photoinduced magnetization in the coexisting spin-glass and ferromagnetic phases of Pr0.9Ca0.1MnO3 thin film. / Majumdar, S.; Huhtinen, H.; Svedberg, M.; Paturi, P.; Granroth, S.; Kooser, K.

In: Journal of Physics: Condensed Matter, Vol. 23, 466002, 2011.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

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

M1 - 466002

ER -