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Paper Abstract and Keywords
Presentation 2020-10-05 16:55
Diffraction characteristics of a high-density domain wall motion type light modulation device array
Ryo Higashida, Nobuhiko Funabashi, Ken-ichi Aoshima, Masato Miura, Kenji Machida (NHK)
Abstract (in Japanese) (See Japanese page) 
(in English) We have been developing a magneto-optical light modulator driven by current-induced domain wall motion for a holographic display application. The device consists of a magnetic nanowire for light modulation and two tiny hard magnets to control the switching property of the nanowire. In this paper, we report on the fabrication of a light modulator with dimensions of 0.5$times$2 $mu$m2 and the successful magnetization reversal by current injection. Furthermore, we fabricated a high-density light modulator array and formed a diffraction grating consisting of different magnetization directions by applying an external magnetic field. We report the results of light diffraction measurements using the arrays.
Keyword (in Japanese) (See Japanese page) 
(in English) Current-induced domain wall motion / Magneto-optical effect / Spatial light modulator / Holography / / / /  
Reference Info. ITE Tech. Rep., vol. 44, no. 25, MMS2020-52, pp. 33-36, Oct. 2020.
Paper # MMS2020-52 
Date of Issue 2020-09-28 (MMS) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
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Conference Information
Committee IEICE-MRIS MMS  
Conference Date 2020-10-05 - 2020-10-05 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Recording Head, Spintronics, Solid State Memory, Media, etc. 
Paper Information
Registration To MMS 
Conference Code 2020-10-MRIS-MMS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Diffraction characteristics of a high-density domain wall motion type light modulation device array 
Sub Title (in English)  
Keyword(1) Current-induced domain wall motion  
Keyword(2) Magneto-optical effect  
Keyword(3) Spatial light modulator  
Keyword(4) Holography  
1st Author's Name Ryo Higashida  
1st Author's Affiliation Japan Broadcasting Corporation (NHK)
2nd Author's Name Nobuhiko Funabashi  
2nd Author's Affiliation Japan Broadcasting Corporation (NHK)
3rd Author's Name Ken-ichi Aoshima  
3rd Author's Affiliation Japan Broadcasting Corporation (NHK)
4th Author's Name Masato Miura  
4th Author's Affiliation Japan Broadcasting Corporation (NHK)
5th Author's Name Kenji Machida  
5th Author's Affiliation Japan Broadcasting Corporation (NHK)
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Speaker Author-1 
Date Time 2020-10-05 16:55:00 
Presentation Time 25 minutes 
Registration for MMS 
Paper # MMS2020-52 
Volume (vol) vol.44 
Number (no) no.25 
Page pp.33-36 
Date of Issue 2020-09-28 (MMS) 

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