This title appears in the Scientific Report :
2021
Please use the identifier:
http://dx.doi.org/10.3390/nano11010194 in citations.
Please use the identifier: http://hdl.handle.net/2128/27097 in citations.
Friedel Oscillations Induced by Magnetic Skyrmions: From Scattering Properties to All-Electrical Detection
Friedel Oscillations Induced by Magnetic Skyrmions: From Scattering Properties to All-Electrical Detection
Magnetic skyrmions are spin swirling solitonic defects that can play a major role in information technology. Their future in applications and devices hinges on their efficient manipulation and detection. Here, we explore from ab-initio their nature as magnetic inhomongeities in an otherwise unpertur...
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Personal Name(s): | Bouhassoune, Mohammed |
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Lounis, Samir (Corresponding author) | |
Contributing Institute: |
Quanten-Theorie der Materialien; IAS-1 JARA - HPC; JARA-HPC JARA-FIT; JARA-FIT Quanten-Theorie der Materialien; PGI-1 |
Published in: | Nanomaterials, 11 (2021) 1, S. 194 |
Imprint: |
Basel
MDPI
2021
|
DOI: |
10.3390/nano11010194 |
Document Type: |
Journal Article |
Research Program: |
First-principles investigation of single magnetic nano-skyrmions Quantum Materials |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://hdl.handle.net/2128/27097 in citations.
Magnetic skyrmions are spin swirling solitonic defects that can play a major role in information technology. Their future in applications and devices hinges on their efficient manipulation and detection. Here, we explore from ab-initio their nature as magnetic inhomongeities in an otherwise unperturbed magnetic material, Fe layer covered by a thin Pd film and deposited on top of Ir(111) surface. The presence of skyrmions triggers scattering processes, from which Friedel oscillations emerge. The latter mediate interactions among skyrmions or between skyrmions and other potential surrounding defects. In contrast to their wavelengths, the amplitude of the oscillations depends strongly on the size of the skyrmion. The analogy with the scattering-off atomic defects enables the assignment of an effective scattering potential and a phase shift to the skyrmionic particles, which can be useful to predict their behavior on the basis of simple scattering frameworks. The induced charge ripples can be utilized for a noninvasive all-electrical detection of skyrmions located on a surface or even if buried a few nanometers away from the detecting electrode. |