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Mesoscopic monodisperse ferromagnetic colloids enable magnetically controlled photonic crystals

Xu, X and Majetich, SA and Asher, SA (2002) Mesoscopic monodisperse ferromagnetic colloids enable magnetically controlled photonic crystals. Journal of the American Chemical Society, 124 (46). 13864 - 13868. ISSN 0002-7863

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We report here the first synthesis of mesoscopic, monodisperse particles which contain nanoscopic inclusions of ferromagnetic cobalt ferrites. These monodisperse ferromagnetic composite particles readily self-assemble into magnetically responsive photonic crystals that efficiently Bragg diffract incident light. Magnetic fields can be used to control the photonic crystal orientation and, thus, the diffracted wavelength. We demonstrate the use of these ferromagnetic particles to fabricate magneto-optical diffracting fluids and magnetically switchable diffracting mirrors.


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Item Type: Article
Status: Published
CreatorsEmailPitt UsernameORCID
Xu, X
Majetich, SA
Asher, SAasher@pitt.eduASHER
Date: 20 November 2002
Date Type: Publication
Journal or Publication Title: Journal of the American Chemical Society
Volume: 124
Number: 46
Page Range: 13864 - 13868
DOI or Unique Handle: 10.1021/ja026901k
Schools and Programs: Dietrich School of Arts and Sciences > Chemistry
Refereed: Yes
ISSN: 0002-7863
PubMed ID: 12431117
Date Deposited: 23 Jan 2013 21:47
Last Modified: 02 Feb 2019 16:55


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