Jiang, Lingzi ; Huang, Can ; Zhu, Yan ; Pan, Yanfei ; Fan, Jiyu ; Zhang, Kaicheng ; Ma, Chunlan ; Shi, Daning ; Zhang, Hongbin (2022)
Tuning the size of skyrmion by strain at the Co/Pt₃ interfaces.
In: iScience, 2022, 25 (4)
doi: 10.26083/tuprints-00021411
Artikel, Zweitveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
Based on density functional theory calculations, we elucidated the tunability of the atomic structures and magnetic interactions of Co/Pt₃ interface (one layer of hcp(0001) Co and three layers of fcc(111) Pt) and thus the skyrmion sizes using strain. The dispersion relations of the spin spiral in the opposite directions, E(q) and E(-q), were evaluated based on generalized Bloch equations. Effective exchange coupling (EC) and Dzyaloshinsky-Moriya interaction (DMI) parameters between different neighbors Ji and di at different lattice constants were derived by fitting the resulting spin spiral dispersion E(q) to EC model with DMI and E(q)- E(-q) formula, respectively. We observed an increase in DMI and a significant decrease in EC with an increase in strain. Hence, the size of Ne´ el-type skyrmions determined by the ratio of EC/DMI can be controlled by applying strain, leading to an effective approach to tailor the formation of skyrmion lattices by inducing slight structural modifications on the magnetic thin films.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2022 |
| Autor(en): | Jiang, Lingzi ; Huang, Can ; Zhu, Yan ; Pan, Yanfei ; Fan, Jiyu ; Zhang, Kaicheng ; Ma, Chunlan ; Shi, Daning ; Zhang, Hongbin |
| Art des Eintrags: | Zweitveröffentlichung |
| Titel: | Tuning the size of skyrmion by strain at the Co/Pt₃ interfaces |
| Sprache: | Englisch |
| Publikationsjahr: | 2022 |
| Publikationsdatum der Erstveröffentlichung: | 2022 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | iScience |
| Jahrgang/Volume einer Zeitschrift: | 25 |
| (Heft-)Nummer: | 4 |
| Kollation: | 13 Seiten |
| DOI: | 10.26083/tuprints-00021411 |
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/21411 |
| Zugehörige Links: | |
| Herkunft: | Zweitveröffentlichung aus gefördertem Golden Open Access |
| Kurzbeschreibung (Abstract): | Based on density functional theory calculations, we elucidated the tunability of the atomic structures and magnetic interactions of Co/Pt₃ interface (one layer of hcp(0001) Co and three layers of fcc(111) Pt) and thus the skyrmion sizes using strain. The dispersion relations of the spin spiral in the opposite directions, E(q) and E(-q), were evaluated based on generalized Bloch equations. Effective exchange coupling (EC) and Dzyaloshinsky-Moriya interaction (DMI) parameters between different neighbors Ji and di at different lattice constants were derived by fitting the resulting spin spiral dispersion E(q) to EC model with DMI and E(q)- E(-q) formula, respectively. We observed an increase in DMI and a significant decrease in EC with an increase in strain. Hence, the size of Ne´ el-type skyrmions determined by the ratio of EC/DMI can be controlled by applying strain, leading to an effective approach to tailor the formation of skyrmion lattices by inducing slight structural modifications on the magnetic thin films. |
| Status: | Verlagsversion |
| URN: | urn:nbn:de:tuda-tuprints-214114 |
| Zusätzliche Informationen: | Part of special issue: SI: 2D materials electronics (s. verwandtes Werk) Keywords: Condensed matter physics, interface science, nanomaterials |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft LOEWE LOEWE > LOEWE-Schwerpunkte LOEWE > LOEWE-Schwerpunkte > FLAME - Fermi Level Engineering Antiferroelektrischer Materialien für Energiespeicher und Isolatoren |
| Hinterlegungsdatum: | 24 Mai 2022 10:13 |
| Letzte Änderung: | 25 Mai 2022 06:00 |
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