Influence of the number of periods on the magnetization reversal process of antiferromagnetically coupled amorphous CoxSi1−x/Si multilayers

Zárate, Luis Enrique; Quirós, C.; Vélez, María; Martín, José Ignacio; Alameda, J. M.

doi:10.1016/j.jnoncrysol.2006.12.112

Cited by 1 publication

(1 citation statement)

References 9 publications

(11 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[9][10][11] One characteristic of these magnetic amorphous compounds, besides their well known soft magnetic behavior, is that several properties, such as the saturation magnetization and uniaxial anisotropy, can be tuned by fine adjustment of the alloy composition. In the case of Co x Si 1−x / Si multilayers, the saturation magnetization and the Curie temperature are reduced when the Si content is increased, 10 so that the strength of the usual magnetostatic coupling contributions present in any magnetic multilayer system can be tailored.…”

Section: Introductionmentioning

confidence: 99%

Magnetic properties of amorphous Co0.74Si0.26∕Si multilayers with different numbers of periods

Kakazei

Santos

Quirós

et al. 2010

Low Temperature Physics

View full text Add to dashboard Cite

Two sets of ͓Co 0.74 Si 0.26 ͑5 nm͒ / Si͑s͔͒ n amorphous films were prepared by magnetron sputtering: one in the form of multilayers with the Si spacer thickness s fixed at 3 nm, and the number n of periods varying from 1 to 10 and the other with only two periods and s varying from 3 to 24 nm ͑trilayers͒. In both sets, the Co 0.74 Si 0.26 layer thickness t was fixed at 5 nm. All the samples except the one with s = 24 nm manifest antiferromagnetic coupling. Their magnetic properties at room temperature were probed using the magnetooptical transverse Kerr effect ͑MOTKE͒ and ferromagnetic resonance ͑FMR͒. The relative increase in the saturation magnetization M s ͑for trilayers, relative to a structure with s = 24 nm; for multilayers, relative to the single-layer structure͒ determined from the FMR measurements was compared with the exchange coupling strength H J AF obtained from the MOTKE studies. The dependences of H J AF and M s on n and s were found to be very similar to each other. Possible mechanisms of this similarity are discussed.

show abstract