Magnetorefractive effect in granular films with tunneling magnetoresistance

Bykov, I. V.; Ганьшина, Е. А.; Грановский, А. Б.; Gushchin, V. S.

doi:10.1134/1.1131238

Cited by 17 publications

(5 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Such materials possess unique physical properties as giant magnetoresistance (GMR) [2], a considerable magnetorefractive effect [3], high absorption of electromagnetic radiation [4], etc. Their low coercivity, high saturation magnetization, in-plane anisotropy field, high resistivity and GMR are beneficial for different applications such as memory media with super-high density of magnetic recording, superhigh frequency shielding, etc.…”

mentioning

confidence: 99%

Hydrogenation of FeCoZr–Al2O3 nanocomposites studied by Mössbauer spectroscopy and magnetometry

Saad

Kasiuk²,

Fedotova³

et al. 2009

Hyperfine Interact

View full text Add to dashboard Cite

Hydrogenation effects on crystalline and magnetic structure of nanocomposites (FeCoZr) x (Al 2 O 3 ) 100−x , 38 ≤ x ≤ 63 at.% are studied by 57 Fe Mössbauer spectroscopy and magnetometry. Variations of local structure, blocking temperature and mean FeCoZr nanoparticles' volume are discussed with respect to (i) composition and (ii) two competing processes-H 2 incorporation and annealing-occurred during treatment in H 2 plasma.

show abstract

mentioning

confidence: 99%

Hydrogenation of FeCoZr–Al2O3 nanocomposites studied by Mössbauer spectroscopy and magnetometry

Saad

Kasiuk²,

Fedotova³

et al. 2009

Hyperfine Interact

View full text Add to dashboard Cite

show abstract

“…In particular, the use of this non-contact IR technique for TMR and current perpendicular to the plane (CPP) sample/device characterization is highly desirable due to their technological importance. Although high sensitivity of the MRE to the tunnelling process is unlikely, a correlation to the MR in TMR materials is still expected and there is some evidence of this in the preliminary studies in the literature [24,25].…”

Section: Discussionmentioning

confidence: 99%

Infrared metrology for spintronic materials and devices

Vopsaroiu

Stanton

Thomas

et al. 2009

Meas. Sci. Technol.

View full text Add to dashboard Cite

Magneto-resistance is the most important characteristic of spintronic materials. This is usually measured using electrical contact probe testing. In this paper, we discuss a simple optical infrared (IR) experiment that allows the non-contact measurement of the magneto-resistance of spintronic materials and devices. The results are compared with characteristic electrical giant magneto-resistance (GMR) curves and show good agreement. The instrument is simpler and more compact than previous demonstrators, offering the possibility of routine measurement. The ability to measure a GMR profile using a non-contact, non-destructive IR technique has important implications, enabling in situ sample testing, non-contact profiling of the GMR at a wafer level and spatial resolution GMR measurements.

show abstract

“…This was specially so because magnetic tunnel junctions are extremely delicate devices, very sensitive to statics, and whose cross checking without the need of electrical contacts is a great advantage. To mention a few examples, TMR systems where the MRE has been studied includes: different ferromagnetic continuous layers with spacers like MgO [64], Al 2 O 3 [65,66], or C [67]; a variety of metaldielectric granular structures such as CoFe and similar ferromagnetic clusters in Al 2 O 3 , HfO 2 , SiO x or MgO matrices [68][69][70][71][72][73][74][75][76]; or so-called metal-insulator alloys [77].…”

Section: Mre In Tmr and Nanocomposite Systemsmentioning

confidence: 99%

Active photonic platforms for the mid-infrared to the THz regime using spintronic structures

Armelles

Cebollada

2020

Nanophotonics

View full text Add to dashboard Cite

AbstractSpintronics and Photonics constitute separately two disciplines of huge scientific and technological impact. Exploring their conceptual and practical overlap offers vast possibilities of research and a clear scope for the corresponding communities to merge and consider innovative ideas taking advantage of each other’s potentials. As an example, here we review the magnetic field modification of the optical response of photonic systems fabricated out of spintronic materials, or in which spintronic components are incorporated. This magnetic actuation is due to the Magneto Refractive Effect (MRE), which accounts for the change in the optical constants of a spintronic system due to the magnetic field induced modification of the electrical resistivity. Due to the direct implication of conduction electrons in this phenomenon, this change in the optical constants covers from the mid-infrared to the THz regime. After introducing the non-expert reader into the spintronic concepts relevant to this work, we then present the MRE exhibited by a variety of spintronic systems, and finally show the different applications of this property in the generation of active spintronic-photonic platforms.

show abstract

Magnetorefractive effect in granular films with tunneling magnetoresistance

Cited by 17 publications

References 8 publications

Hydrogenation of FeCoZr–Al2O3 nanocomposites studied by Mössbauer spectroscopy and magnetometry

Hydrogenation of FeCoZr–Al2O3 nanocomposites studied by Mössbauer spectroscopy and magnetometry

Infrared metrology for spintronic materials and devices

Active photonic platforms for the mid-infrared to the THz regime using spintronic structures

Contact Info

Product

Resources

About