Dzyaloshinskii-Moriya interaction in symmetric epitaxial 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mrow><mml:mo>[</mml:mo><mml:mi>Co</mml:mi><mml:mo>/</mml:mo><mml:mi>Pd</mml:mi></mml:mrow><mml:mrow><mml:mo>(</mml:mo><mml:mn>111</mml:mn><mml:mo>)</mml:mo></mml:mrow><mml:mo>]</mml:mo></mml:mrow><mml:mi>N</mml:mi></mml:msub></mml:math>
 superlattices with different numbers of Co/Pd bilayers

Davydenko, A. V.; Козлов, А. Г.; Kolesnikov, Alexander; Stebliy, Maxim E.; Suslin, G. S.; Vekovshinin, Y. E.; Sadovnikov, A. V.; Никитов, С. А.

doi:10.1103/physrevb.99.014433

Cited by 31 publications

(18 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Using an exchange stiffness in agreement with the measured w provides a value of D in the range 1.0-1.1 mJ=m 2 . This value is consistent with recent reports suggesting large values of D in Pd-based systems [34]. Our findings align with previous results of Co=Pt symmetric multilayers [48], with a possible origin of the DMI being inequivalent Pd=Co and Co=Pd interfaces [34,49,50].…”

supporting

confidence: 93%

“…This value is consistent with recent reports suggesting large values of D in Pd-based systems [34]. Our findings align with previous results of Co=Pt symmetric multilayers [48], with a possible origin of the DMI being inequivalent Pd=Co and Co=Pd interfaces [34,49,50]. The large dependency of η with both D and A ex further confirms the need for a robust technique to make quantitative measurements of the physical parameters governing chiral domain structures.…”

supporting

confidence: 92%

“…LTEM is directly sensitive to changes in magnetization for electron transparent thin films and, with precise control of experimental variables in conjunction with image simulations, can provide quantitative information on magnetic domain walls [31][32][33]. Here, we use LTEM to quantify the mixed character of magnetic domain walls in an MgO ð2 nmÞ= Pt ð4 nmÞ=Co ð0.7 nmÞ=½Pd ð0.5 nmÞ=Co ð0.7 nmÞ 10 = Pt ð4 nmÞ stack with a strong DMI [29,34], where 10 is the repetition number of the Pd=Co bilayers [ Fig. 1(a), inset] [35].…”

mentioning

confidence: 99%

See 2 more Smart Citations

Quantification of Mixed Bloch-Néel Topological Spin Textures Stabilized by the Dzyaloshinskii-Moriya Interaction in Co/Pd Multilayers

et al. 2019

View full text Add to dashboard Cite

The three-dimensional structure of nanoscale topological spin textures stabilized by the Dzyaloshinskii-Moriya interaction is governed by the delicate competition between the exchange, demagnetization, and anisotropy energies. The quantification of such spin textures through direct experimental methods is crucial towards understanding the fundamental physics associated with their ordering, as well as their manipulation in spintronic devices. Here, we extend the Lorentz transmission electron microscopy technique to quantify mixed Bloch-Néel chiral spin textures stabilized by the Dzyaloshinskii-Moriya interaction in Co=Pd multilayers. Analysis of the observed intensities under varied imaging conditions coupled to corroborative micromagnetic simulations yields vital parameters that dictate the stability and properties of the complex spin texture, namely, the degree of mixed Bloch-Néel character, the domain wall width, the strength of the Dzyaloshinskii-Moriya interaction, and the exchange stiffness. This approach provides the necessary framework for the application of quantitative Lorentz phase microscopy to a broad array of topological spin systems.

show abstract

supporting

confidence: 93%

supporting

confidence: 92%

mentioning

confidence: 99%

See 1 more Smart Citation

Quantification of Mixed Bloch-Néel Topological Spin Textures Stabilized by the Dzyaloshinskii-Moriya Interaction in Co/Pd Multilayers

et al. 2019

View full text Add to dashboard Cite

show abstract

“…Davydenko et al . have also shown that in epitaxially deposited Co/Pd multilayers Dzialoszynski-Moriya interaction can additionally influence the magnetic reversal 38 .…”

Section: Discussionmentioning

confidence: 95%

Magnetic reversal in perpendicularly magnetized antidot arrays with intrinsic and extrinsic defects

Krupiński

Sobieszczyk

Zieliński

et al. 2019

Sci Rep

View full text Add to dashboard Cite

Defects can significantly affect performance of nanopatterned magnetic devices, therefore their influence on the material properties has to be understood well before the material is used in technological applications. However, this is experimentally challenging due to the inability of the control of defect characteristics in a reproducible manner. Here, we construct a micromagnetic model, which accounts for intrinsic and extrinsic defects associated with the polycrystalline nature of the material and with corrugated edges of nanostructures. The predictions of the model are corroborated by the measurements obtained for highly ordered arrays of circular Co/Pd antidots with perpendicular magnetic anisotropy. We found that magnetic properties, magnetic reversal and the evolution of the domain pattern are strongly determined by density of defects, heterogeneity of nanostructures, and edge corrugations. In particular, an increase in the Néel domain walls, as compared to Bloch walls, was observed with a increase of the antidot diameters, suggesting that a neck between two antidots can behave like a nanowire with a width determined by the array period and antidot size. Furthermore, the presence of edge corrugations can lead to the formation of a network of magnetic bubbles, which are unstable in non-patterned flat films.

show abstract

“…[ 40 ] Interface asymmetry is also evident in Pt|Co|Pt and Pd|Co|Pd structures in which the total interface‐induced Dzyaloshinksi–Moriya interaction does not vanish. [ 41,42 ] Similarly, the exchange anisotropy at the top and bottom interfaces of Py|MnFe|Py has strongly different magnitude. [ 43 ]…”

Section: Figurementioning

confidence: 99%

Terahertz Spin‐to‐Charge Conversion by Interfacial Skew Scattering in Metallic Bilayers

et al. 2021

View full text Add to dashboard Cite

The efficient conversion of spin to charge transport and vice versa is of major relevance for the detection and generation of spin currents in spin‐based electronics. Interfaces of heterostructures are known to have a marked impact on this process. Here, terahertz (THz) emission spectroscopy is used to study ultrafast spin‐to‐charge‐current conversion (S2C) in about 50 prototypical F|N bilayers consisting of a ferromagnetic layer F (e.g., Ni81Fe19, Co, or Fe) and a nonmagnetic layer N with strong (Pt) or weak (Cu and Al) spin‐orbit coupling. Varying the structure of the F/N interface leads to a drastic change in the amplitude and even inversion of the polarity of the THz charge current. Remarkably, when N is a material with small spin Hall angle, a dominant interface contribution to the ultrafast charge current is found. Its magnitude amounts to as much as about 20% of that found in the F|Pt reference sample. Symmetry arguments and first‐principles calculations strongly suggest that the interfacial S2C arises from skew scattering of spin‐polarized electrons at interface imperfections. The results highlight the potential of skew scattering for interfacial S2C and propose a promising route to enhanced S2C by tailored interfaces at all frequencies from DC to terahertz.

show abstract

Dzyaloshinskii-Moriya interaction in symmetric epitaxial [Co/Pd(111)]N superlattices with different numbers of Co/Pd bilayers

Cited by 31 publications

References 45 publications

Quantification of Mixed Bloch-Néel Topological Spin Textures Stabilized by the Dzyaloshinskii-Moriya Interaction in Co/Pd Multilayers

Quantification of Mixed Bloch-Néel Topological Spin Textures Stabilized by the Dzyaloshinskii-Moriya Interaction in Co/Pd Multilayers

Magnetic reversal in perpendicularly magnetized antidot arrays with intrinsic and extrinsic defects

Terahertz Spin‐to‐Charge Conversion by Interfacial Skew Scattering in Metallic Bilayers

Contact Info

Product

Resources

About