Through a proper application of a model proposed by Kuzminski and Lachowicz, giant magneto-impedance (GMI) data obtained on as- prepared and Joule heated CoFeB amorphous ribbons have been analyzed in order to obtain detailed information about how the electromagnetic penetration depth and transverse relative magnetic permeability evolve as a function of a longitudinal magnetic field and annealing conditions. When transverse permeability is enhanced ( near the beginning of the crystallization process), impedance values reach a maximum, while when transverse magnetic permeability variations with the application of a longitudinal magnetic field are maximized, the best GMI response of the material is obtained. (c) 2007 Elsevier B.V. All rights reserved.
Penetration depth and magnetic permeability calculations on GMI effect and comparison with measurements on CoFeB alloys / Coisson, Marco; Tiberto, PAOLA MARIA; Vinai, F; Tyagi, P. V.; Modak, Ss; Kane, S. N.. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - 320:3-4(2008), pp. 510-514. [10.1016/j.jmmm.2007.07.010]
Penetration depth and magnetic permeability calculations on GMI effect and comparison with measurements on CoFeB alloys
COISSON, MARCO;TIBERTO, PAOLA MARIA;
2008
Abstract
Through a proper application of a model proposed by Kuzminski and Lachowicz, giant magneto-impedance (GMI) data obtained on as- prepared and Joule heated CoFeB amorphous ribbons have been analyzed in order to obtain detailed information about how the electromagnetic penetration depth and transverse relative magnetic permeability evolve as a function of a longitudinal magnetic field and annealing conditions. When transverse permeability is enhanced ( near the beginning of the crystallization process), impedance values reach a maximum, while when transverse magnetic permeability variations with the application of a longitudinal magnetic field are maximized, the best GMI response of the material is obtained. (c) 2007 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
