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

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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 languageEnglish (US)
Pages (from-to)2087-2092
Number of pages6
JournalApplied Optics
Issue number10
DOIs
StatePublished - Apr 1 2014

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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