Faraday rotation of cobalt ferrite nanoparticle polymer composite films at cryogenic temperatures

Veysi Demir; Palash Gangopadhyay; Robert A Norwood; Nasser N Peyghambarian

doi:10.1364/AO.53.002087

Faraday rotation of cobalt ferrite nanoparticle polymer composite films at cryogenic temperatures

Veysi Demir, Palash Gangopadhyay, Robert A Norwood, Nasser N Peyghambarian

Optical Sciences, College of

Research output: Contribution to journal › Article

4 Scopus citations

Abstract

This paper investigates the behavior of the Verdet constant for cobalt ferrite (CoFe<inf>2</inf>O<inf>4</inf>) nanoparticles polymer composite films at low temperatures using a 532 nm laser source. An experimental setup for Faraday rotation (FR) at low temperatures is introduced and FRs were measured at various temperatures. Verdet constants were deduced from the paramagnetic model for terbium gallium garnet glass where ∼4× improvement was observed at 40°K for CoFe<inf>2</inf>O<inf>4</inf>composite film.

Original language	English (US)
Pages (from-to)	2087-2092
Number of pages	6
Journal	Applied Optics
Issue number	10
DOIs	https://doi.org/10.1364/AO.53.002087
State	Published - Apr 1 2014

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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Demir, V., Gangopadhyay, P., Norwood, R. A., & Peyghambarian, N. N. (2014). Faraday rotation of cobalt ferrite nanoparticle polymer composite films at cryogenic temperatures. Applied Optics, (10), 2087-2092. https://doi.org/10.1364/AO.53.002087

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abstract = "This paper investigates the behavior of the Verdet constant for cobalt ferrite (CoFe2O4) nanoparticles polymer composite films at low temperatures using a 532 nm laser source. An experimental setup for Faraday rotation (FR) at low temperatures is introduced and FRs were measured at various temperatures. Verdet constants were deduced from the paramagnetic model for terbium gallium garnet glass where ∼4× improvement was observed at 40°K for CoFe2O4composite film.",

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