Generation of imprinted strain gradients for spintronics
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- G Masciocchi
- M Fattouhi
- E Spetzler
- M-A Syskaki
- R Lehndorff
- E Martinez
- J McCord
- L Lopez-Diaz
- A Kehlberger
- M Klaeui
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:001027294400006&DestLinkType=FullRecord&DestApp=WOS
- DOI
- 10.1063/5.0157687
- eISSN
- 1077-3118
- Externe Identifier
- Clarivate Analytics Document Solution ID: M0RV5
- ISSN
- 0003-6951
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- APPLIED PHYSICS LETTERS
- Artikelnummer
- ARTN 022404
- Datum der Veröffentlichung
- 2023
- Status
- Published
- Titel
- Generation of imprinted strain gradients for spintronics
- Sub types
- Article
- Ausgabe der Zeitschrift
- 123
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Abstract
- <jats:p>In this work, we propose and evaluate an inexpensive and CMOS-compatible method to locally apply strain on a Si/SiOx substrate. Due to high growth temperatures and different thermal expansion coefficients, a SiN passivation layer exerts a compressive stress when deposited on a commercial silicon wafer. Removing selected areas of the passivation layer alters the strain on the micrometer range, leading to changes in the local magnetic anisotropy of a magnetic material through magnetoelastic interactions. Using Kerr microscopy, we experimentally demonstrate how the magnetoelastic energy landscape, created by a pair of openings, enables in a magnetic nanowire the creation of pinning sites for in-plane vortex walls that propagate in a magnetic racetrack. We report substantial pinning fields up to 15 mT for device-relevant ferromagnetic materials with positive magnetostriction. We support our experimental results with finite element simulations for the induced strain, micromagnetic simulations, and 1D model calculations using the realistic strain profile to identify the depinning mechanism. All the observations above are due to the magnetoelastic energy contribution in the system, which creates local energy minima for the domain wall at the desired location. By controlling domain walls with strain, we realize the prototype of a true power-on magnetic sensor that can measure discrete magnetic fields or Oersted currents. This utilizes a technology that does not require piezoelectric substrates or high-resolution lithography, thus enabling wafer-level production.</jats:p>
- Autoren
- G Masciocchi
- M Fattouhi
- E Spetzler
- M-A Syskaki
- R Lehndorff
- E Martinez
- J McCord
- L Lopez-Diaz
- A Kehlberger
- M Kläui
- DOI
- 10.1063/5.0157687
- eISSN
- 1077-3118
- ISSN
- 0003-6951
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- Applied Physics Letters
- Sprache
- en
- Online publication date
- 2023
- Datum der Veröffentlichung
- 2023
- Status
- Published
- Herausgeber
- AIP Publishing
- Herausgeber URL
- http://dx.doi.org/10.1063/5.0157687
- Datum der Datenerfassung
- 2023
- Titel
- Generation of imprinted strain gradients for spintronics
- Ausgabe der Zeitschrift
- 123
Datenquelle: Crossref
- Author's licence
- InCopyright
- Autoren
- Giovanni Masciocchi
- Mouad Fattouhi
- Elizaveta Spetzler
- Maria-Andromachi Syskaki
- Ronald Lehndorff
- Eduardo Martinez
- Jeffrey McCord
- Luis Lopez-Diaz
- Andrea Kehlberger
- Mathias Kläui
- Hosting institution
- Universitätsbibliothek Mainz
- Resource version
- Published version
- DOI
- 10.1063/5.0157687
- File(s) embargoed
- false
- Open access
- true
- ISSN
- 0003-6951
- Ausgabe der Veröffentlichung
- 2
- Zeitschrift
- Applied physics letters
- Sprache
- eng
- Open access status
- Open Access
- Paginierung
- 022404
- Herausgeber
- American Inst. of Physics,
- Zugang
- Private
- Titel
- Generation of imprinted strain gradients for spintronics
- Ausgabe der Zeitschrift
- 123
Files
generation_of_imprinted_strai-20240102110041620.pdf
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