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|Title:||The role of sp-hybridized atoms in carbon ferromagnetism: A spin-polarized density functional theory calculation||Authors:||Fan, X.F.
|Issue Date:||2010||Citation:||Fan, X.F., Liu, L., Wu, R.Q., Peng, G.W., Fan, H.M., Feng, Y.P., Kuo, J.-L., Shen, Z.X. (2010). The role of sp-hybridized atoms in carbon ferromagnetism: A spin-polarized density functional theory calculation. Journal of Physics Condensed Matter 22 (4) : -. ScholarBank@NUS Repository. https://doi.org/10.1088/0953-8984/22/4/046001||Abstract:||We address the room-temperature(RT) carbon ferromagnetism by considering the magnetic states of low-dimensional carbons linked by sp-hybridized carbon atoms. Based on the spin-polarized density functional theory calculations, we find that the sp* orbitals of carbon atoms can bring magnetic moments into different carbon allotropes which may eventually give rise to the long-range ferromagnetic ordering at room temperature through an indirect carrier-mediated coupling mechanism. The fact that this indirect coupling is Fermi-level-dependent predicts that the individual magnetism of diverse carbon materials is governed by their chemical environments. This mechanism may help to illuminate the RT magnetic properties of carbon-based materials and to explore the new magnetic applications of carbon materials. © 2010 IOP Publishing Ltd.||Source Title:||Journal of Physics Condensed Matter||URI:||http://scholarbank.nus.edu.sg/handle/10635/86797||ISSN:||09538984||DOI:||10.1088/0953-8984/22/4/046001|
|Appears in Collections:||Staff Publications|
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