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izvor podataka: crosbi

Detection of the magnetization reversal in submicronic Co particles by GMR measurements (CROSBI ID 78668)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Cros, Vincent ; Lee, Shan-Fan ; Faini, Giancarlo ; Cornette, Andre ; Hamzić, Amir ; Fert, Albert Detection of the magnetization reversal in submicronic Co particles by GMR measurements // Journal of magnetism and magnetic materials, 165 (1997), 512 - 515-x

Podaci o odgovornosti

Cros, Vincent ; Lee, Shan-Fan ; Faini, Giancarlo ; Cornette, Andre ; Hamzić, Amir ; Fert, Albert

engleski

Detection of the magnetization reversal in submicronic Co particles by GMR measurements

Co particles were obtained by patterining trilayers such as Co/Cu/Co and NiFe/Cu/Co grown by sputtering. Using elecronic lithography, we can design on these layers a microsensor for transport measurements and a Co particle on the top layer. The Co particle and the sublayers form a spin-valve structure due to their different coercitivity. We used GMR measurements to detect the magnetization reversal in Co particles with sizes between 100 x 50 micro m^2 and 180 x 20 nm^2. We present the size dependence of the GMR ratio and of the reversal magnetic field. For the smallest size, we do not find a Stoner-Wolfahrt rotation (i.e. uniform rotation) of the Co particle magnetization, but GMR displays staircase curves indicating discrete variation of this magnetization.

thin films-trilayer; fine particles; magnetization reversal; giant magnetoresistance

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Podaci o izdanju

165

1997.

512 - 515-x

objavljeno

0304-8853

Povezanost rada

Fizika

Indeksiranost