Photocontrolled magnetization of CdS-modified prussian blue nanoparticles

Minori Taguchi; Ichizo Yagi; Masaru Nakagawa; Tomokazu Iyoda; Yasuaki Einaga

doi:10.1021/ja063461e

Photocontrolled magnetization of CdS-modified prussian blue nanoparticles

Minori Taguchi, Ichizo Yagi, Masaru Nakagawa, Tomokazu Iyoda, Yasuaki Einaga

Department of Chemistry

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

41 Citations (Scopus)

Abstract

The first photocontrollable magnetic nanoparticles containing CdS and Prussian blue (PB) have been created using reverse micelles as nanoreactors. Photoinduced electron transfer from CdS to PB in the reverse micelle changed the magnetic properties of the composite nanoparticles from ferromagnetic to paramagnetic. The magnetization in the ferromagnetic region below 4 K was substantially decreased after UV light illumination and could be restored almost to its original level by thermal treatment at room temperature. This novel strategy of designing composite nanoparticles containing photoconductive semiconductors and magnetic materials to create photoswitchable magnetic materials may open many possibilities in the development of magneto-optical devices.

Original language	English
Pages (from-to)	10978-10982
Number of pages	5
Journal	Journal of the American Chemical Society
Volume	128
Issue number	33
DOIs	https://doi.org/10.1021/ja063461e
Publication status	Published - 2006 Aug 23

ASJC Scopus subject areas

Catalysis
Chemistry(all)
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja063461e

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abstract = "The first photocontrollable magnetic nanoparticles containing CdS and Prussian blue (PB) have been created using reverse micelles as nanoreactors. Photoinduced electron transfer from CdS to PB in the reverse micelle changed the magnetic properties of the composite nanoparticles from ferromagnetic to paramagnetic. The magnetization in the ferromagnetic region below 4 K was substantially decreased after UV light illumination and could be restored almost to its original level by thermal treatment at room temperature. This novel strategy of designing composite nanoparticles containing photoconductive semiconductors and magnetic materials to create photoswitchable magnetic materials may open many possibilities in the development of magneto-optical devices.",

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AU - Taguchi, Minori

AU - Yagi, Ichizo

AU - Nakagawa, Masaru

AU - Iyoda, Tomokazu

AU - Einaga, Yasuaki

PY - 2006/8/23

Y1 - 2006/8/23

N2 - The first photocontrollable magnetic nanoparticles containing CdS and Prussian blue (PB) have been created using reverse micelles as nanoreactors. Photoinduced electron transfer from CdS to PB in the reverse micelle changed the magnetic properties of the composite nanoparticles from ferromagnetic to paramagnetic. The magnetization in the ferromagnetic region below 4 K was substantially decreased after UV light illumination and could be restored almost to its original level by thermal treatment at room temperature. This novel strategy of designing composite nanoparticles containing photoconductive semiconductors and magnetic materials to create photoswitchable magnetic materials may open many possibilities in the development of magneto-optical devices.

AB - The first photocontrollable magnetic nanoparticles containing CdS and Prussian blue (PB) have been created using reverse micelles as nanoreactors. Photoinduced electron transfer from CdS to PB in the reverse micelle changed the magnetic properties of the composite nanoparticles from ferromagnetic to paramagnetic. The magnetization in the ferromagnetic region below 4 K was substantially decreased after UV light illumination and could be restored almost to its original level by thermal treatment at room temperature. This novel strategy of designing composite nanoparticles containing photoconductive semiconductors and magnetic materials to create photoswitchable magnetic materials may open many possibilities in the development of magneto-optical devices.

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Photocontrolled magnetization of CdS-modified prussian blue nanoparticles

Abstract

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