Nonmagnetic Sc substitution in a perovskite ferromagnetic insulator Pr 0.8Ca0.2MnO3

Takayuki Harada; Ryota Takahashi; Mikk Lippmaa

doi:10.7566/JPSJ.82.014801

Nonmagnetic Sc substitution in a perovskite ferromagnetic insulator Pr _0.8Ca_0.2MnO₃

Takayuki Harada, Ryota Takahashi, Mikk Lippmaa

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

The effect of nonmagnetic substitution in a perovskite ferromagnetic insulator Pr_0.8Ca_0.2MnO₃ was studied in epitaxial Pr_0.8Ca_0.2Mn_1-ySc_yO ₃ thin films grown on SrTiO₃ substrates. An increasing Sc substitution level weakened the ferromagnetic order, resulting in a decrease of saturation magnetization and the ferromagnetic transition temperature. Analysis of transport properties and Raman spectra indicates that besides simple spin dilution, weakening of both the double-exchange interaction and orbital order contributes to the reduction of ferromagnetic order.

Original language	English
Article number	014801
Journal	journal of the physical society of japan
Volume	82
Issue number	1
DOIs	https://doi.org/10.7566/JPSJ.82.014801
Publication status	Published - 2013 Jan
Externally published	Yes

Keywords

Ferromagnetic insulator
Manganites
Raman scattering
Spin dilution
Thin films

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.7566/JPSJ.82.014801

Cite this

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abstract = "The effect of nonmagnetic substitution in a perovskite ferromagnetic insulator Pr0.8Ca0.2MnO3 was studied in epitaxial Pr0.8Ca0.2Mn1-yScyO 3 thin films grown on SrTiO3 substrates. An increasing Sc substitution level weakened the ferromagnetic order, resulting in a decrease of saturation magnetization and the ferromagnetic transition temperature. Analysis of transport properties and Raman spectra indicates that besides simple spin dilution, weakening of both the double-exchange interaction and orbital order contributes to the reduction of ferromagnetic order.",

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AU - Harada, Takayuki

AU - Takahashi, Ryota

AU - Lippmaa, Mikk

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N2 - The effect of nonmagnetic substitution in a perovskite ferromagnetic insulator Pr0.8Ca0.2MnO3 was studied in epitaxial Pr0.8Ca0.2Mn1-yScyO 3 thin films grown on SrTiO3 substrates. An increasing Sc substitution level weakened the ferromagnetic order, resulting in a decrease of saturation magnetization and the ferromagnetic transition temperature. Analysis of transport properties and Raman spectra indicates that besides simple spin dilution, weakening of both the double-exchange interaction and orbital order contributes to the reduction of ferromagnetic order.

AB - The effect of nonmagnetic substitution in a perovskite ferromagnetic insulator Pr0.8Ca0.2MnO3 was studied in epitaxial Pr0.8Ca0.2Mn1-yScyO 3 thin films grown on SrTiO3 substrates. An increasing Sc substitution level weakened the ferromagnetic order, resulting in a decrease of saturation magnetization and the ferromagnetic transition temperature. Analysis of transport properties and Raman spectra indicates that besides simple spin dilution, weakening of both the double-exchange interaction and orbital order contributes to the reduction of ferromagnetic order.

KW - Ferromagnetic insulator

KW - Manganites

KW - Raman scattering

KW - Spin dilution

KW - Thin films

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