Naslov
Magnetization reversal by spin injection: experiments and theory

Autori
George, Jean-Marie ; Grollier, Julie ; Jaffres, Henry ; Hamzić, Amir ; Cros, Vincent ; Faini, Giancarlo ; Ben Youssef, J. ; Le Gall, H. ; Fert, Albert

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni

Izvornik
Proceedings of EASTMAG-2001 / - Yekaterinburg, 2001

Skup
Euro-Asian Symposium "Trends in Magnetism" - EASTMAG-2001

Mjesto i datum
Jekaterinburg, Ruska Federacija, 27.02.2001. - 02.03.2001

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
magnetization reversal; spin injection; spin electronics

Sažetak
We present experiments of the magnetization reversal by spin injection obtained on the pillar-shaped Co/Cu/Co trilayers. The pillars are fabricated by e- beam lithography and reactive ion etching. Their small section (200 x 600 nm^2) allowed the injection a current density of about 10^7 A/cm^2. Our data confirm similar previous results by the Cornell's group. In addition, we present a new type of experiment, which also evidences clearly the control of the magnetic configuration by the current intensity. The interpretation is based on the Slonczewski’s equations with a calculation of the current spin polarization based on the VF model of CPP-GMR. This type of calculation predicts right order of magnitude of the critical currents, but some discrepancy between calculation and experiments for the critical current asymmetry and their field dependence remains.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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