Flat magnetic exchange springs as mechanism for additional magnetoresistance in magnetic nanoisland arrays

Boltaev, A. P.; Pudonin, F. A.; Sherstnev, I. A.; Egorov, D. A.; Koz’min, A. M.

doi:10.1016/j.jmmm.2016.12.028

Cited by 5 publications

(2 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For precision optical measurements of the nonreciprocity effect, we prepared structures consisting of several layers of FeNi islands separated by an Al 2 O 3 dielectric film, as we have done earlier for the flat spin springs in a magnetic island systems study [12]. The use of multilayered island structures significantly improves the accuracy of measurements.…”

Section: Sample Preparationmentioning

confidence: 99%

See 1 more Smart Citation

Anomalous optical nonreciprocity in magnetic nanoisland arrays

Boltaev¹,

Pudonin²,

Sherstnev³

et al. 2018

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

We study the phenomenon of optical nonreciprocity in multilayer systems of magnetic nanoislands [FeNi-AlO] . An anomalously large optical nonreciprocity was observed in these systems. The effect was manifested in nonequivalence of polarization plane rotation of reflected light for the sample in an initial position and rotated by [Formula: see text]. We assume that the super-vortex magnetization in the FeNi layers is responsible for the optical nonreciprocity effect. It was found that the value of nonreciprocity effect depends on the effective thickness of FeNi island layer and reaches a maximum with the super-vortex magnetization formation. The nonreciprocity magnitude is significantly higher than the values observed recently in systems of specially formed magnetic nanoparticles. Nonreciprocity magnitude is strongly dependent on interlayer interaction between nanoisland layers at large distances.

show abstract

Section: Sample Preparationmentioning

confidence: 99%

“…Multilayer systems of island FeNi layers separated by Al 2 O 3 layers-[FeNi-Al 2 O 3 ] N -were prepared on a polished ceramic (sital) substrate with the RF-sputtering method. Preparation features for these structures can be found elsewhere [10,12,13]. The island films were characterized by an effective thickness.…”

Section: Sample Preparationmentioning

confidence: 99%