Hybrid Multiferroic Nanostructure
with Magnetic–Dielectric
Coupling
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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<sub>3</sub>, 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