Magnetotunable left-handed FeSiB ferromagnetic microwires

0365861 - FZÚ 2012 RIV US eng J - Článek v odborném periodiku
Labrador, A. - Gómez-Polo, C. - Pérez-Landazábal, J.I. - Zablotskyy, Vitaliy A. - Ederra, I. - Gonzalo, R. - Badini-Confalonieri, G. - Vazquez, M.
Magnetotunable left-handed FeSiB ferromagnetic microwires.
Optics Letters. Roč. 35, č. 13 (2010), s. 2161-2163. ISSN 0146-9592. E-ISSN 1539-4794
Výzkumný záměr: CEZ:AV0Z10100522
Klíčová slova: ferromagnetic microwires * left-handed materials * ferromagnetic resonance
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 3.316, rok: 2010
http://www.opticsinfobase.org/abstract.cfm?uri=ol-35-13-2161

The magnetotunable left-handed characteristics of Fe77.5Si12.5B10 glass-coated ferromagnetic microwires are analyzed in array and single microwire configuration, employing a rectangular waveguide working in X band. While the negative permeability is ascribed to the natural ferromagnetic resonance (NFMR) of the highly and positive magnetostrictive microwire, the negative permittivity features of the medium are attributed to the interaction of the microwires with the metallic rectangular waveguide. The dependence of the NFMR frequency on the applied external magnetic field enables the design of magnetotunable left-handed systems with wide-frequency band.
Trvalý link: http://hdl.handle.net/11104/0201006