Hybrid multiferroic nanostructure with magnetic-dielectric coupling.

Narayanan, T N; Mandal, B P; Tyagi, A K; Kumarasiri, A; Zhan, Xaiobo; Hahm, Myung Gwan; Anantharaman, M R; Lawes, G et al. · Nano Lett · 2012

basic_science · Level V

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Abstract

The development of methods to economically synthesize single wire structured multiferroic systems with room temperature spin-charge coupling is expected to be important for building next-generation multifunctional devices with ultralow power consumption. We demonstrate the fabrication of a single nanowire multiferroic system, a new geometry, exhibiting room temperature magnetodielectric coupling. A coaxial nanotube/nanowire heterostructure of barium titanate (BaTiO(3), BTO) and cobalt (Co) has been synthesized using a template-assisted method. Room temperature ferromagnetism and ferroelectricity were exhibited by this coaxial system, indicating the coexistence of more than one ferroic interaction in this composite system.

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