Simultaneous Control of Interlayer Exchange Coupling and the Interfacial Dzyaloshinskii–Moriya Interaction in Ru-Based Synthetic Antiferromagnets

Прудников, А. Н.; Li, Maxwell; Graef, Marc De; Sokalski, Vincent

doi:10.1109/lmag.2018.2882163

Cited by 7 publications

(5 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As shown in Fig. 1(a), the two frustrated FM layers are coupled by an AFM interfacial exchange coupling, which can be realized by utilizing the Ruderman-Kittel-Kasuya-Yosida interaction [26,[40][41][42][43]47]. The background magnetization direction of the bottom FM layer is assumed to be pointing along the +z direction.…”

Section: Methodsmentioning

confidence: 99%

“…So far, most studies on frustrated skyrmions are focused on the monolayer system, while bilayer and multilayer systems play an important role in developing nanoscale devices [3,[22][23][24][25][26][27][28][40][41][42][43][44][45][46][47]. On the other hand, recent theoretical works have suggested that the monolayer antiferromagnetic (AFM) skyrmion has different dynamics and improved mobility in comparison with the FM one [48][49][50].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Current-Driven Dynamics of Frustrated Skyrmions in a Synthetic Antiferromagnetic Bilayer

et al. 2019

View full text Add to dashboard Cite

We report the current-driven dynamics of frustrated skyrmions in an antiferromagnetically exchange coupled bilayer system, where the bilayer skyrmion consists of two monolayer skyrmions with opposite skyrmion numbers Q. We show that the in-plane current-driven bilayer skyrmion moves in a straight path, while the outof-plane current-driven bilayer skyrmion moves in a circular path. It is found that the in-plane current-driven mobility of a bilayer skyrmion is much better than the monolayer one at a large ratio of β/α, where α and β denote the damping parameter and non-adiabatic spin transfer torque strength, respectively. Besides, the outof-plane current-driven mobility of a bilayer skyrmion is much better than the monolayer one when α is small. We also reveal that one bilayer skyrmion (consisting of monolayer skyrmions with Q = ±2) can be separated to two bilayer skyrmions (consisting of monolayer skyrmions with Q = ±1) driven by an out-of-plane current. Our results may be useful for designing skyrmionic devices based on frustrated multilayer magnets.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Current-Driven Dynamics of Frustrated Skyrmions in a Synthetic Antiferromagnetic Bilayer

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Magnetic thin film structures, which consist of ferromagnetic layers separated by nonmagnetic metallic spacer, are widely used in magnetic recording media, spin field-effect transistors and magnetic sensors [1]. One of the main factors affecting the sensitivity of magnetoresistance (MR) based sensors is the interlayer coupling and its novel applications combining interfacial Dzyaloshinskii-Moriya interaction [2,3]. It is known that interlayer coupling strongly depends on quality of ferromagnet/spacer interfaces and electronic transport through the spacer.…”

Section: Introductionmentioning

confidence: 99%

Influence of Layer Thickness on Magnetoresistance Properties of Multilayered Thin Films

Kalaycı

2022

Türk Doğa Ve Fen Dergisi

View full text Add to dashboard Cite

In this study, the magnetoresistance properties of multilayered structures consisting of five different combinations of Pt and Co thin layers were studied in the room temperature range. Thin films were prepared by using magnetron sputtering techniques in ultra-high vacuum conditions. It has been found that the percentage of MR decreases as the thickness of the spacer layer thickness increases. For 3 nm thickness, 0.16% MR ratio is obtained, while for 4 and 5 nm these values are 0.15% and 0.10% respectively. In addition, as reference layer thickness increases, MR values are 0.10%, 0.11% and 0.15%, respectively. These results show that the prepared thin film sets can be used in technological applications such as MR based sensors and spin field transistors.

show abstract

“…[1][2][3] There has been a striking re-emergence of interest in SAFs, recently, for their potential use in chiral spintronic applications as well. [4][5][6][7][8] This is due to the now well-established interfacial Dzyaloshinskii-Moriya interaction [9][10][11] (DMI), which leads to chiral Néel domain walls (DWs), called Dzyaloshinskii DWs, or Skyrmions in thin films with broken mirror symmetry. [12][13][14][15][16][17] Significant improvement in the current-induced velocity of these features when incorporated into SAFs has been identified when driven by spin-orbit torques (e.g.…”

Section: Introductionmentioning

confidence: 99%

Stabilization of coupled Dzyaloshinskii domain walls in fully compensated synthetic anti-ferromagnets

Pandey

Graef

et al. 2020

AIP Advances

Self Cite

View full text Add to dashboard Cite

We examine the combined effects of interlayer exchange coupling (IEC) and the interfacial Dzyaloshinskii-Moriya Interaction (DMI) on the structure of magnetic domain walls in fully compensated synthetic antiferromagnets (SAFs). Ir-based SAFs with ferromagnetic (FM) layers based on [Pt/(Co/Ni) M ] N were characterized by Lorentz transmission electron microscopy (LTEM). The multi-layer design of the individual ferromagnetic layers enables control of the interfacial Dzyaloshinskii-Moriya interaction (via M) and, in turn, the structure and chirality of domain walls (DWs). We compare the Fresnel-mode LTEM images in SAF designs with only a change in the purported strength of the DMI. The existence of anti-ferromagnetically coupled Dzyaloshinskii domain walls (DWs) in a high DMI SAF is confirmed through application of in-situ perpendicular magnetic field and sample tilt. This conclusion is based on a unique set of conditions required to observe contrast in Fresnel-mode LTEM, which we outline in this document.

show abstract

Simultaneous Control of Interlayer Exchange Coupling and the Interfacial Dzyaloshinskii–Moriya Interaction in Ru-Based Synthetic Antiferromagnets

Cited by 7 publications

References 26 publications

Current-Driven Dynamics of Frustrated Skyrmions in a Synthetic Antiferromagnetic Bilayer

Current-Driven Dynamics of Frustrated Skyrmions in a Synthetic Antiferromagnetic Bilayer

Influence of Layer Thickness on Magnetoresistance Properties of Multilayered Thin Films

Stabilization of coupled Dzyaloshinskii domain walls in fully compensated synthetic anti-ferromagnets

Contact Info

Product

Resources

About