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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202107779
|2 doi
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|a pubmed24n1118.xml
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|a (DE-627)NLM33558103X
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|a (NLM)35023226
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Xu, Changsong
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Assembling Diverse Skyrmionic Phases in Fe3 GeTe2 Monolayers
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|c 2022
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 24.03.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a Skyrmionic magnetic states are promising in advanced spintronics. This topic is experiencing recent progress in 2D magnets, with, for example, a near 300 K Curie temperature observed in Fe3 GeTe2 . However, despite previous studies reporting skyrmions in Fe3 GeTe2 , such a system remains elusive, since it has been reported to host either Néel-type or Bloch-type textures, while a net Dzyaloshinskii-Moriya interaction (DMI) cannot occur in this compound for symmetry reasons. It is thus desirable to develop an accurate model to deeply understand Fe3 GeTe2 . Here, a newly developed method adopting spin invariants is applied to build a first-principle-based Hamiltonian, which predicts colorful topological defects assembled from the unit of Bloch lines, and reveals the critical role of specific forms of fourth-order interactions in Fe3 GeTe2 . Rather than the DMI, it is the multiple fourth-order interactions, with symmetry and spin-orbit couplings considered, that stabilize both Néel-type and Bloch-type skyrmions, as well as antiskyrmions, without any preference for clockwise versus counterclockwise spin rotation. This study also demonstrates that spin invariants can be used as a general approach to study complex magnetic interactions
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|a Journal Article
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|a Fe3GeTe2
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4 |
|a first-principle-based effective Hamiltonian
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| 650 |
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4 |
|a fourth order interactions
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4 |
|a spin invariants
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| 650 |
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4 |
|a topological defects
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| 700 |
1 |
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|a Li, Xueyang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Peng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Yun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xiang, Hongjun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bellaiche, Laurent
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 34(2022), 12 vom: 08. März, Seite e2107779
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:34
|g year:2022
|g number:12
|g day:08
|g month:03
|g pages:e2107779
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202107779
|3 Volltext
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|d 34
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