Magneto-Optical Kerr Rotation of the PtMnSb Compound in a High Magnetic Field

Kōki Takanashi; Jun Watanabe; Giyuu Kido; Hiroyasu Fujimori

doi:10.1143/JJAP.29.L306

Magneto-Optical Kerr Rotation of the PtMnSb Compound in a High Magnetic Field

Kōki Takanashi, Jun Watanabe, Giyuu Kido, Hiroyasu Fujimori

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

12 Citations (Scopus)

Abstract

The polar magneto-optical Kerr rotation angle (θ_K) for a polished surface of bulk PtMnSb was measured at 632.8 nm wavelength in high applied magnetic fields up to 15 T. The saturation value of θ_Kwas 1.42° in the as-polished state, and it was enhanced to 1.75° by annealing at temperatures higher than 400°C. Simultaneously, θ_Kbecame easily saturated, suggesting that the magnetic anisotropy near the surface decreased due to annealing. The enhancement of θ_Kand the decrease in magnetic anisotropy are considered to be due to the removal of structural disorder caused by polishing.

Original language	English
Pages (from-to)	L306-L307
Journal	Japanese journal of applied physics
Volume	29
Issue number	2
DOIs	https://doi.org/10.1143/JJAP.29.L306
Publication status	Published - 1990 Feb
Externally published	Yes

Keywords

Anisotropy
Annealing effect
High magnetic field
Magneto-optical Kerr rotation
PtMnSb
Surface magnetic

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1143/JJAP.29.L306

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abstract = "The polar magneto-optical Kerr rotation angle (θK) for a polished surface of bulk PtMnSb was measured at 632.8 nm wavelength in high applied magnetic fields up to 15 T. The saturation value of θKwas 1.42° in the as-polished state, and it was enhanced to 1.75° by annealing at temperatures higher than 400°C. Simultaneously, θKbecame easily saturated, suggesting that the magnetic anisotropy near the surface decreased due to annealing. The enhancement of θKand the decrease in magnetic anisotropy are considered to be due to the removal of structural disorder caused by polishing.",

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T1 - Magneto-Optical Kerr Rotation of the PtMnSb Compound in a High Magnetic Field

AU - Takanashi, Kōki

AU - Watanabe, Jun

AU - Kido, Giyuu

AU - Fujimori, Hiroyasu

PY - 1990/2

Y1 - 1990/2

N2 - The polar magneto-optical Kerr rotation angle (θK) for a polished surface of bulk PtMnSb was measured at 632.8 nm wavelength in high applied magnetic fields up to 15 T. The saturation value of θKwas 1.42° in the as-polished state, and it was enhanced to 1.75° by annealing at temperatures higher than 400°C. Simultaneously, θKbecame easily saturated, suggesting that the magnetic anisotropy near the surface decreased due to annealing. The enhancement of θKand the decrease in magnetic anisotropy are considered to be due to the removal of structural disorder caused by polishing.

AB - The polar magneto-optical Kerr rotation angle (θK) for a polished surface of bulk PtMnSb was measured at 632.8 nm wavelength in high applied magnetic fields up to 15 T. The saturation value of θKwas 1.42° in the as-polished state, and it was enhanced to 1.75° by annealing at temperatures higher than 400°C. Simultaneously, θKbecame easily saturated, suggesting that the magnetic anisotropy near the surface decreased due to annealing. The enhancement of θKand the decrease in magnetic anisotropy are considered to be due to the removal of structural disorder caused by polishing.

KW - Anisotropy

KW - Annealing effect

KW - High magnetic field

KW - Magneto-optical Kerr rotation

KW - PtMnSb

KW - Surface magnetic

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Magneto-Optical Kerr Rotation of the PtMnSb Compound in a High Magnetic Field

Abstract

Keywords

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