Large interlayer Dzyaloshinskii-Moriya interactions across Ag-layers
Abstract Seeking to enhance the strength of the interlayer Dzyaloshinskii-Moriya interaction (IL-DMI) through a combination of atomic and Rashba type spin-orbit coupling (SOC) we studied the strength and the thickness evolution of effective interlayer coupling in Co/Ag/Co trilayers by means of surfa...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-10-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-023-42426-9 |
| _version_ | 1797636829316382720 |
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| author | Jon Ander Arregi Patricia Riego Andreas Berger Elena Y. Vedmedenko |
| author_facet | Jon Ander Arregi Patricia Riego Andreas Berger Elena Y. Vedmedenko |
| author_sort | Jon Ander Arregi |
| collection | DOAJ |
| description | Abstract Seeking to enhance the strength of the interlayer Dzyaloshinskii-Moriya interaction (IL-DMI) through a combination of atomic and Rashba type spin-orbit coupling (SOC) we studied the strength and the thickness evolution of effective interlayer coupling in Co/Ag/Co trilayers by means of surface sensitive magneto-optical measurements that take advantage of the light penetration depth. Here, we report the observation of oscillatory, thickness-dependent chiral interaction between ferromagnetic layers. Despite the weakness of the Ag atomic SOC, the IL-DMI in our trilayers is orders of magnitude larger than that of known systems using heavy metals as a spacer except of recently reported −0.15 mJ/m2 in Co/Pt/Ru(t)/Pt/Co and varies between ≈ ±0.2 mJ/m2. In contrast to known multilayers Co/Ag/Co promotes in-plane chirality between magnetic layers. The strength of IL-DMI opens up new routes for design of three-dimensional chiral spin structures combining intra- and interlayer DMI and paves the way for enhancements of the DMI strength. |
| first_indexed | 2024-03-11T12:39:46Z |
| format | Article |
| id | doaj.art-89d586f4b6424ad49e38e23b22244ca2 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-03-11T12:39:46Z |
| publishDate | 2023-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-89d586f4b6424ad49e38e23b22244ca22023-11-05T12:22:18ZengNature PortfolioNature Communications2041-17232023-10-0114111010.1038/s41467-023-42426-9Large interlayer Dzyaloshinskii-Moriya interactions across Ag-layersJon Ander Arregi0Patricia Riego1Andreas Berger2Elena Y. Vedmedenko3CIC nanoGUNE BRTACIC nanoGUNE BRTACIC nanoGUNE BRTAUniversität HamburgAbstract Seeking to enhance the strength of the interlayer Dzyaloshinskii-Moriya interaction (IL-DMI) through a combination of atomic and Rashba type spin-orbit coupling (SOC) we studied the strength and the thickness evolution of effective interlayer coupling in Co/Ag/Co trilayers by means of surface sensitive magneto-optical measurements that take advantage of the light penetration depth. Here, we report the observation of oscillatory, thickness-dependent chiral interaction between ferromagnetic layers. Despite the weakness of the Ag atomic SOC, the IL-DMI in our trilayers is orders of magnitude larger than that of known systems using heavy metals as a spacer except of recently reported −0.15 mJ/m2 in Co/Pt/Ru(t)/Pt/Co and varies between ≈ ±0.2 mJ/m2. In contrast to known multilayers Co/Ag/Co promotes in-plane chirality between magnetic layers. The strength of IL-DMI opens up new routes for design of three-dimensional chiral spin structures combining intra- and interlayer DMI and paves the way for enhancements of the DMI strength.https://doi.org/10.1038/s41467-023-42426-9 |
| spellingShingle | Jon Ander Arregi Patricia Riego Andreas Berger Elena Y. Vedmedenko Large interlayer Dzyaloshinskii-Moriya interactions across Ag-layers Nature Communications |
| title | Large interlayer Dzyaloshinskii-Moriya interactions across Ag-layers |
| title_full | Large interlayer Dzyaloshinskii-Moriya interactions across Ag-layers |
| title_fullStr | Large interlayer Dzyaloshinskii-Moriya interactions across Ag-layers |
| title_full_unstemmed | Large interlayer Dzyaloshinskii-Moriya interactions across Ag-layers |
| title_short | Large interlayer Dzyaloshinskii-Moriya interactions across Ag-layers |
| title_sort | large interlayer dzyaloshinskii moriya interactions across ag layers |
| url | https://doi.org/10.1038/s41467-023-42426-9 |
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