001008688 001__ 1008688 001008688 005__ 20231215103936.0 001008688 0247_ $$2doi$$a10.3389/fphy.2023.1223609 001008688 0247_ $$2datacite_doi$$a10.34734/FZJ-2023-02479 001008688 0247_ $$2WOS$$aWOS:001017882900001 001008688 037__ $$aFZJ-2023-02479 001008688 082__ $$a530 001008688 1001_ $$0P:(DE-Juel1)180822$$aSavchenko, Andrii S.$$b0$$eCorresponding author 001008688 245__ $$aMagnetic bubbles with alternating chirality in domain walls 001008688 260__ $$aLausanne$$bFrontiers Media$$c2023 001008688 3367_ $$2DRIVER$$aarticle 001008688 3367_ $$2DataCite$$aOutput Types/Journal article 001008688 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1688024461_2761 001008688 3367_ $$2BibTeX$$aARTICLE 001008688 3367_ $$2ORCID$$aJOURNAL_ARTICLE 001008688 3367_ $$00$$2EndNote$$aJournal Article 001008688 520__ $$aIn magnetic multilayers with perpendicular anisotropy, the competition of short-range and long-range interactions gives rise to the stability of cylindrical magnetic domains, also known as magnetic bubbles. The presence of Dzyaloshinsky-Moriya interaction induced by asymmetric interfaces between magnetic and nonmagnetic layers may lead to the formation of cylindrical bubble domains with Neel-type domain walls across the whole thickness of the multilayer. Such domain walls produce no contrast in Lorentz TEM under the normal incidence of the electron beam to the film. The latter is often used as an argument for the presence of Dzyaloshinskii-Moriya interaction in the system. Here we show that in magnetic multilayers, the absence of the Lorentz TEM contrast might also have another origin. In particular, in the absence of interfacial Dzyaloshinskii-Moriya interaction and weak interlayer exchange coupling, the magnetic bubbles might have Bloch-type domain walls of alternate chirality in adjacent layers. Such domain walls also do not produce magnetic contrast in Lorentz TEM at normal incidence of the electron beam. We show that, in the absence of interlayer exchange coupling, the magnetic bubble domains with the domain walls of fixed and alternate chirality have nearly identical energies and can coexist in the same range of magnetic fields. Using the geodesic nudged elastic band method, we prove that these states are separated by finite energy barriers. Furthermore, we demonstrate that magnetic multilayers with only dipolar coupling, besides the magnetic bubbles with nontrivial topology in all layers, can accommodate solutions with trivial topology within the internal layers. 001008688 536__ $$0G:(DE-HGF)POF4-5211$$a5211 - Topological Matter (POF4-521)$$cPOF4-521$$fPOF IV$$x0 001008688 536__ $$0G:(EU-Grant)856538$$a3D MAGiC - Three-dimensional magnetization textures: Discovery and control on the nanoscale (856538)$$c856538$$fERC-2019-SyG$$x1 001008688 588__ $$aDataset connected to CrossRef, Journals: juser.fz-juelich.de 001008688 7001_ $$0P:(DE-Juel1)176480$$aKuchkin, Vladyslav$$b1$$ufzj 001008688 7001_ $$0P:(DE-HGF)0$$aRybakov, Filipp N.$$b2 001008688 7001_ $$0P:(DE-Juel1)145390$$aKiselev, Nikolai$$b3$$ufzj 001008688 773__ $$0PERI:(DE-600)2721033-9$$a10.3389/fphy.2023.1223609$$gVol. 11, p. 1223609$$p1223609$$tFrontiers in physics$$v11$$x2296-424X$$y2023 001008688 8564_ $$uhttps://juser.fz-juelich.de/record/1008688/files/fphy-11-1223609.pdf$$yOpenAccess 001008688 8767_ $$d2023-06-27$$eAPC$$jDeposit$$z2312 $ 001008688 909CO $$ooai:juser.fz-juelich.de:1008688$$pdnbdelivery$$popenCost$$pec_fundedresources$$pVDB$$pdriver$$pOpenAPC$$popen_access$$popenaire 001008688 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)180822$$aForschungszentrum Jülich$$b0$$kFZJ 001008688 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)176480$$aForschungszentrum Jülich$$b1$$kFZJ 001008688 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)145390$$aForschungszentrum Jülich$$b3$$kFZJ 001008688 9131_ $$0G:(DE-HGF)POF4-521$$1G:(DE-HGF)POF4-520$$2G:(DE-HGF)POF4-500$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF4-5211$$aDE-HGF$$bKey Technologies$$lNatural, Artificial and Cognitive Information Processing$$vQuantum Materials$$x0 001008688 9141_ $$y2023 001008688 915__ $$0StatID:(DE-HGF)0160$$2StatID$$aDBCoverage$$bEssential Science Indicators$$d2022-11-15 001008688 915__ $$0LIC:(DE-HGF)CCBY4$$2HGFVOC$$aCreative Commons Attribution CC BY 4.0 001008688 915__ $$0StatID:(DE-HGF)0501$$2StatID$$aDBCoverage$$bDOAJ Seal$$d2021-05-12T10:34:55Z 001008688 915__ $$0StatID:(DE-HGF)0500$$2StatID$$aDBCoverage$$bDOAJ$$d2021-05-12T10:34:55Z 001008688 915__ $$0StatID:(DE-HGF)0113$$2StatID$$aWoS$$bScience Citation Index Expanded$$d2022-11-15 001008688 915__ $$0StatID:(DE-HGF)0700$$2StatID$$aFees$$d2022-11-15 001008688 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess 001008688 915__ $$0StatID:(DE-HGF)0561$$2StatID$$aArticle Processing Charges$$d2022-11-15 001008688 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bFRONT PHYS-LAUSANNE : 2022$$d2023-08-23 001008688 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS$$d2023-08-23 001008688 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline$$d2023-08-23 001008688 915__ $$0StatID:(DE-HGF)0030$$2StatID$$aPeer Review$$bDOAJ : Anonymous peer review$$d2021-05-12T10:34:55Z 001008688 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bClarivate Analytics Master Journal List$$d2023-08-23 001008688 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection$$d2023-08-23 001008688 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences$$d2023-08-23 001008688 915__ $$0StatID:(DE-HGF)9900$$2StatID$$aIF < 5$$d2023-08-23 001008688 915pc $$0PC:(DE-HGF)0000$$2APC$$aAPC keys set 001008688 915pc $$0PC:(DE-HGF)0003$$2APC$$aDOAJ Journal 001008688 920__ $$lyes 001008688 9201_ $$0I:(DE-Juel1)IAS-1-20090406$$kIAS-1$$lQuanten-Theorie der Materialien$$x0 001008688 9201_ $$0I:(DE-Juel1)PGI-1-20110106$$kPGI-1$$lQuanten-Theorie der Materialien$$x1 001008688 980__ $$ajournal 001008688 980__ $$aVDB 001008688 980__ $$aUNRESTRICTED 001008688 980__ $$aI:(DE-Juel1)IAS-1-20090406 001008688 980__ $$aI:(DE-Juel1)PGI-1-20110106 001008688 980__ $$aAPC 001008688 9801_ $$aAPC 001008688 9801_ $$aFullTexts