Stano, Michal ; Schaefer, Sandra ; Wartelle, Alexis ; Rioult, Maxime ; Belkhou, Rachid ; Sala, Alessandro ; Mentes, Tevfik Onur ; Locatelli, Andrea ; Cagnon, Laurent ; Trapp, Beatrix ; Bochmann, Sebastian ; Martin, Sylvain ; Gautier, Eric ; Toussaint, Jean-Christophe ; Ensinger, Wolfgang ; Fruchart, Olivier (2017)
Imaging magnetic flux-closure domains and domain walls in electroless-deposited CoNiB nanotubes.
In: Condensed Matter - Materials Science
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Magnetic nanotubes are predicted to host mag- netic domains and domain walls with a topology different from that for at elements[1, 2]. Com- pared to cylindrical nanowires, reports on mag- netism of isolated metallic nanotubes are scarce and so far no material has given rise to well- defined magnetic domains. Here we report the fabrication of high-aspect ratio CoNiB nanotubes by electroless plating inside a porous template. Through imaging, we evidenced multiple mag- netic domains and domain walls in these nano- tubes. Surprisingly, magnetization in the do- mains is orthoradial (azimuthal, vortex-like), a situation not anticipated by theory for long nano- tubes. The material is therefore technologically appealing for a dense 3D magnetic device such as the racetrack memory[3] (based on shifting mag- netic walls), as ux-closure domains should efi- ciently prevent cross-talk related to internal di- polar fields. Further, we show tuning of a growth- induced anisotropy and thus of the magnetic state of the tube by annealing.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2017 |
| Autor(en): | Stano, Michal ; Schaefer, Sandra ; Wartelle, Alexis ; Rioult, Maxime ; Belkhou, Rachid ; Sala, Alessandro ; Mentes, Tevfik Onur ; Locatelli, Andrea ; Cagnon, Laurent ; Trapp, Beatrix ; Bochmann, Sebastian ; Martin, Sylvain ; Gautier, Eric ; Toussaint, Jean-Christophe ; Ensinger, Wolfgang ; Fruchart, Olivier |
| Art des Eintrags: | Bibliographie |
| Titel: | Imaging magnetic flux-closure domains and domain walls in electroless-deposited CoNiB nanotubes |
| Sprache: | Englisch |
| Publikationsjahr: | 21 April 2017 |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Condensed Matter - Materials Science |
| Kurzbeschreibung (Abstract): | Magnetic nanotubes are predicted to host mag- netic domains and domain walls with a topology different from that for at elements[1, 2]. Com- pared to cylindrical nanowires, reports on mag- netism of isolated metallic nanotubes are scarce and so far no material has given rise to well- defined magnetic domains. Here we report the fabrication of high-aspect ratio CoNiB nanotubes by electroless plating inside a porous template. Through imaging, we evidenced multiple mag- netic domains and domain walls in these nano- tubes. Surprisingly, magnetization in the do- mains is orthoradial (azimuthal, vortex-like), a situation not anticipated by theory for long nano- tubes. The material is therefore technologically appealing for a dense 3D magnetic device such as the racetrack memory[3] (based on shifting mag- netic walls), as ux-closure domains should efi- ciently prevent cross-talk related to internal di- polar fields. Further, we show tuning of a growth- induced anisotropy and thus of the magnetic state of the tube by annealing. |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Materialanalytik |
| Hinterlegungsdatum: | 21 Jul 2017 11:10 |
| Letzte Änderung: | 31 Jan 2019 07:12 |
| PPN: | |
| Sponsoren: | M.S. acknowledges grant from the Laboratoire d'excellence LANEF in Grenoble (ANR-10-LABX-51-01)., S.S. gratefully acknowledge funding by the LOEWE project RESPONSE of the Hessen State Ministry of Higher Education, Research and the Arts (HMWK). |
| Export: | |
| Suche nach Titel in: | TUfind oder in Google |
 |
Frage zum Eintrag |
Optionen (nur für Redakteure)
 |
Redaktionelle Details anzeigen |
Drucken
Impressum