Magneto-optical enhancement in sputtered epitaxial films of praseodymium-substituted yttrium iron garnet

Journal Article · Fri Aug 01 04:00:00 EDT 1997 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.365911· OSTI ID:526869

Gomi, M; Toyoshima, H ^[1]

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1. Department of Materials Science, Japan Advanced Institute of Science and Technology, Tatsunokuchi, Ishikawa 923-12 (Japan)

Faraday rotation and ellipticity were measured at room temperature in the photon energy range of 1.5{endash}4.2 eV on Y{sub 3{minus}x}Pr{sub x}Fe{sub 5}O{sub 12} (x=0{endash}2.0) epitaxial films grown by rf sputtering. The Pr{sup 3+} substitution induced negative rotation and ellipticity which satisfy a paramagnetic dispersion relation caused by an electronic transition centered at 3.0 eV. The maximum value of the Pr{sup 3+} contribution was {minus}2.5{times}10{sup 4}deg/cm in rotation and {minus}4.1{times}10{sup 4}deg/cm in ellipticity for x=2.0. Optical absorption measurements showed that this is a new transition induced by the coexistence of Pr{sup 3+} and Fe{sup 3+}, and it is neither 4f{endash}5d intra-atomic transition nor 4f{endash}4f transition originating from Pr ions as previously supposed. {copyright} {ital 1997 American Institute of Physics.}

• OSTI ID: 526869
• Journal Information: Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 3 Vol. 82; ISSN JAPIAU; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION SPECTRA
ELLIPSOMETRY
FARADAY EFFECT
GARNETS
MAGNETO-OPTICAL EFFECTS
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
SPUTTERING
THIN FILMS
VISIBLE SPECTRA
YTTRIUM COMPOUNDS
YTTRIUM OXIDES