Study of switching behavior of exchange-coupled nanomagnets by transverse magnetization metrology

Dey HS; Csaba György; Bernstein GH; Porod W: Study of switching behavior of exchange-coupled nanomagnets by transverse magnetization metrology.
AIP ADVANCES, 7 (5). ISSN 2158-3226 (2017)

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Szerző azonosítók:

Név	ORCID	MTMT szerző azonosító
Dey HS
Csaba György		10057150
Bernstein GH
Porod W

Absztrakt (kivonat):

We investigate the static switching modes of nanomagnets patterned from antiferromagnetically exchange-coupled magnetic multilayers, and compare them to nanomagnets having only dipole coupling between the ferromagnetic layers. Vibrating sample magnetometry experiments, supported by micromagnetic simulations, reveal two distinct switching mechanisms between the exchange-coupled and only dipole-coupled nanomagnets. The exchange-coupled nanomagnets exhibit gradual switching of the layers, dictated by the strong antiferromagnetic exchange coupling present between the layers. However, the layers of the only dipole-coupled nanomagnets show abrupt nucleation/growth type switching. A comprehensive understanding of the switching modes of such layered and patterned systems can add new insight into the reversal mechanisms of similar systems employed for spintronic and magnetologic device applications. (C) 2017 Author(s).

Folyóirat/kiadvány címe:

AIP ADVANCES

Évszám:

2017

Kötet:

Szám:

ISSN:

2158-3226

Intézmény:

Pázmány Péter Katolikus Egyetem

Kar:

Információs Technológiai és Bionikai Kar (2013.07.-)