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- W2380421101 abstract "In this paper,the spin wave spectra of ferromagnetic nanobelts are investigated by means of the the many-body Green's function method of quantum statistical theory.For a nanobelt with width L,there are L branches of energy spectra,ωv=ωv(p),v=1,2,…L.A higher temperature leads to lower energy spectra.The spin-wave energy ω(p) drops with temperature rising,and becomes zero as temperature reaches TC,which is so-called the mode softening.At zero temperature,the spin-wave energy is dependent of belt-width,which increases with L rising,and approaches that of a 2D monolayer.Comparing the results of spin wave energy spectra of a single-layered nanobelt with those of a single-walled nanotube,we found that the spectra of the former are non-degenerate.In contrary to that,the spectra of the latter are degenerate.Physically,the degeneracy of the energies is caused by the symmetry.Compared to a nanotube,the symmetry of a nanobelt is reduced significantly." @default.
- W2380421101 created "2016-06-24" @default.
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- W2380421101 date "2011-01-01" @default.
- W2380421101 modified "2023-09-23" @default.
- W2380421101 title "Spin Waves in Ferromagnetic Monolayer Nanobelts" @default.
- W2380421101 hasPublicationYear "2011" @default.
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