Thermal imaging of standing spin waves

T. An; K. Yamaguchi; K. Uchida; E. Saitoh

doi:10.1063/1.4816737

Thermal imaging of standing spin waves

T. An, K. Yamaguchi, K. Uchida, E. Saitoh

IMR - Integrated Research Division

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7 Citations (Scopus)

Abstract

A simple method for the spatial imaging of standing spin-wave modes is demonstrated. We observed instantaneous temperature-rise images on a polycrystalline ferrimagnetic insulator Y₃Fe₅O ₁₂ slab using an infrared camera immediately after exciting magnetostatic standing spin-wave modes. We found that a wavy temperature distribution appears before the temperature distribution on the sample is smoothed by heat conduction. The distribution is consistent with the result of a calculation based on the Landau-Lifshitz-Gilbert equation using the effective demagnetization coefficient of the slab. This result proves that the method can image the spatially distributed patterns of standing spin waves.

Original language	English
Article number	052410
Journal	Applied Physics Letters
Volume	103
Issue number	5
DOIs	https://doi.org/10.1063/1.4816737
Publication status	Published - 2013 Jul 29

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title = "Thermal imaging of standing spin waves",

abstract = "A simple method for the spatial imaging of standing spin-wave modes is demonstrated. We observed instantaneous temperature-rise images on a polycrystalline ferrimagnetic insulator Y3Fe5O 12 slab using an infrared camera immediately after exciting magnetostatic standing spin-wave modes. We found that a wavy temperature distribution appears before the temperature distribution on the sample is smoothed by heat conduction. The distribution is consistent with the result of a calculation based on the Landau-Lifshitz-Gilbert equation using the effective demagnetization coefficient of the slab. This result proves that the method can image the spatially distributed patterns of standing spin waves.",

author = "T. An and K. Yamaguchi and K. Uchida and E. Saitoh",

note = "Funding Information: The authors thank J. Ohe for valuable discussions. This work was supported by CREST-JST “Creation of Nano-systems with Novel Functions through Process Integration,” Japan, PRESTO-JST “Phase Interfaces for Highly Efficient Energy Utilization,” Japan, a Grant-in-Aid for Scientific Research A (24244051), a Grant-in-Aid for Scientific Research on Innovative Areas (22109003), a Grant-in-Aid for Young Scientists (A) (25707029), from MEXT, Japan, LC-IMR of Tohoku University, The Murata Science Foundation, The Mazda Foundation, and The Sumitomo Foundation.",

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doi = "10.1063/1.4816737",

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journal = "Applied Physics Letters",

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AU - An, T.

AU - Yamaguchi, K.

AU - Uchida, K.

AU - Saitoh, E.

N1 - Funding Information: The authors thank J. Ohe for valuable discussions. This work was supported by CREST-JST “Creation of Nano-systems with Novel Functions through Process Integration,” Japan, PRESTO-JST “Phase Interfaces for Highly Efficient Energy Utilization,” Japan, a Grant-in-Aid for Scientific Research A (24244051), a Grant-in-Aid for Scientific Research on Innovative Areas (22109003), a Grant-in-Aid for Young Scientists (A) (25707029), from MEXT, Japan, LC-IMR of Tohoku University, The Murata Science Foundation, The Mazda Foundation, and The Sumitomo Foundation.

PY - 2013/7/29

Y1 - 2013/7/29

N2 - A simple method for the spatial imaging of standing spin-wave modes is demonstrated. We observed instantaneous temperature-rise images on a polycrystalline ferrimagnetic insulator Y3Fe5O 12 slab using an infrared camera immediately after exciting magnetostatic standing spin-wave modes. We found that a wavy temperature distribution appears before the temperature distribution on the sample is smoothed by heat conduction. The distribution is consistent with the result of a calculation based on the Landau-Lifshitz-Gilbert equation using the effective demagnetization coefficient of the slab. This result proves that the method can image the spatially distributed patterns of standing spin waves.

AB - A simple method for the spatial imaging of standing spin-wave modes is demonstrated. We observed instantaneous temperature-rise images on a polycrystalline ferrimagnetic insulator Y3Fe5O 12 slab using an infrared camera immediately after exciting magnetostatic standing spin-wave modes. We found that a wavy temperature distribution appears before the temperature distribution on the sample is smoothed by heat conduction. The distribution is consistent with the result of a calculation based on the Landau-Lifshitz-Gilbert equation using the effective demagnetization coefficient of the slab. This result proves that the method can image the spatially distributed patterns of standing spin waves.

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JO - Applied Physics Letters

JF - Applied Physics Letters

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Thermal imaging of standing spin waves

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