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Sputter Growth and Characterization of Metamagnetic B2-ordered FeRh Epilayers
Published on: October 6, 2013
Ferromagnetism and Half-Metallicity in a High-Band-Gap Hexagonal Boron Nitride System
Indrani Choudhuri1, Biswarup Pathak1,2
1Discipline of Chemistry, Indian Institute of Technology (IIT) Indore, Indore. M.P., 453552, India.
Abstract:
Metal-free half-metallicity is the subject of intense research in the field of spintronics devices. Using density functional theoretical calculations, atom-thin hexagonal boron nitride (h-BN)-based systems are studied for possible spintronics applications. Ferromagnetism is observed in patterned C-doped h-BN systems. Interestingly, such a patterned C-doped h-BN exhibits half-metallicity with a Curie temperature of approximately 324 K at a particular C-doping concentration. It shows half-metallicity more than metal-free systems studied to date. Thus, such a BN-based system can be used to achieve a 100 % spin-polarised current at the Fermi level. Furthermore, this C-doped system shows excellent dynamical, thermal, and mechanical properties. Therefore, a stable metal-free planar ferromagnetic half-metallic h-BN-based system is proposed for use in room-temperature spintronics devices.
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