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Proceedings Paper

Terahertz isotropic photonic magnetoresistance
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Paper Abstract

Ferromagnetic particle collections typically possess anisotropic terahertz (THz) transmission properties that are sensitive to the orientation of an applied external magnetic field. Here, we show that the particle surface morphology can have a large and dominant effect on the magnetic field orientation dependence of the THz transmission. In particular, the THz transmission through highly porous ferromagnetic Ni particles shows isotropic dependence on the external magnetic field orientation. This isotropic magnetic phenomenon suggests the possibility of innovative photonic materials with tailored magnetic properties.

Paper Details

Date Published: 8 February 2007
PDF: 9 pages
Proc. SPIE 6471, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XI and Semiconductor Photodetectors IV, 64710N (8 February 2007); doi: 10.1117/12.697488
Show Author Affiliations
C. A. Baron, Univ. of Alberta (Canada)
K. J. Chau, Univ. of Alberta (Canada)
A. Y. Elezzabi, Univ. of Alberta (Canada)


Published in SPIE Proceedings Vol. 6471:
Ultrafast Phenomena in Semiconductors and Nanostructure Materials XI and Semiconductor Photodetectors IV
Marshall J. Cohen; Kong-Thon Tsen; Joseph P. Estrera; Jin-Joo Song, Editor(s)

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