Micromagnetic simulations study of skyrmions in magnetic FePt nanoelements
•Magnetic Skyrmions are generated by varying the magnetocrystalline anisotropy.•Skyrmions appear for magnetocrystalline anisotropy normal to nanoelement’s base.•Three skyrmions are formed and persist for a wide range of external field values. The magnetization reversal in 330nm triangular prismatic...
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| Veröffentlicht in: | Journal of magnetism and magnetic materials 2019-07, Vol.481, p.111-121 |
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| container_title | Journal of magnetism and magnetic materials |
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| creator | Gergidis, Leonidas N. Stavrou, Vasileios D. Kourounis, Drosos Panagiotopoulos, Ioannis |
| description | •Magnetic Skyrmions are generated by varying the magnetocrystalline anisotropy.•Skyrmions appear for magnetocrystalline anisotropy normal to nanoelement’s base.•Three skyrmions are formed and persist for a wide range of external field values.
The magnetization reversal in 330nm triangular prismatic magnetic nanoelements with variable magnetocrystalline anisotropy similar to that of partially chemically ordered FePt is studied using micromagnetic simulations employing Finite Element discretizations. Several magnetic properties including the evaluation of the magnetic skyrmion number S are computed in order to characterize magnetic configurations exhibiting vortex-like formations. Magnetic vortices and skyrmions are revealed in different systems generated by the variation of the magnitude and relative orientation of the magnetocrystalline anisotropy direction, with respect to the normal to the triangular prism base. Micromagnetic configurations with skyrmion number greater than one have been detected for the case where magnetocrystalline anisotropy was normal to nanoelement’s base. For particular magnetocrystalline anisotropy values three distinct skyrmions are formed and persist for a range of external fields. The simulation-based calculations of the skyrmion number S revealed that skyrmions can be created for magnetic nanoparticle systems lacking of chiral interactions such as Dzyaloshinsky-Moriya, but by only varying the magnetocrystalline anisotropy. |
| doi_str_mv | 10.1016/j.jmmm.2019.02.096 |
| format | Article |
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The magnetization reversal in 330nm triangular prismatic magnetic nanoelements with variable magnetocrystalline anisotropy similar to that of partially chemically ordered FePt is studied using micromagnetic simulations employing Finite Element discretizations. Several magnetic properties including the evaluation of the magnetic skyrmion number S are computed in order to characterize magnetic configurations exhibiting vortex-like formations. Magnetic vortices and skyrmions are revealed in different systems generated by the variation of the magnitude and relative orientation of the magnetocrystalline anisotropy direction, with respect to the normal to the triangular prism base. Micromagnetic configurations with skyrmion number greater than one have been detected for the case where magnetocrystalline anisotropy was normal to nanoelement’s base. For particular magnetocrystalline anisotropy values three distinct skyrmions are formed and persist for a range of external fields. The simulation-based calculations of the skyrmion number S revealed that skyrmions can be created for magnetic nanoparticle systems lacking of chiral interactions such as Dzyaloshinsky-Moriya, but by only varying the magnetocrystalline anisotropy.</description><identifier>ISSN: 0304-8853</identifier><identifier>EISSN: 1873-4766</identifier><identifier>DOI: 10.1016/j.jmmm.2019.02.096</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Anisotropy ; Computer simulation ; Configurations ; Finite element method ; Finite element simulations ; Hypothetical particles ; Intermetallic compounds ; Iron compounds ; Magnetic nanoparticles ; Magnetic properties ; Magnetic skyrmions ; Magnetic vortices ; Magnetization reversal ; Mathematical analysis ; Micromagnetic simulations ; Nanoparticles ; Organic chemistry ; Particle theory ; Platinum compounds ; Skyrmion number</subject><ispartof>Journal of magnetism and magnetic materials, 2019-07, Vol.481, p.111-121</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright Elsevier BV Jul 1, 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c328t-cc4a2fa25e4fb99e1bb935d447b8546e40a390af38e769926309bbb9a1c458f13</citedby><cites>FETCH-LOGICAL-c328t-cc4a2fa25e4fb99e1bb935d447b8546e40a390af38e769926309bbb9a1c458f13</cites><orcidid>0000-0003-4907-1400</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0304885318331901$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Gergidis, Leonidas N.</creatorcontrib><creatorcontrib>Stavrou, Vasileios D.</creatorcontrib><creatorcontrib>Kourounis, Drosos</creatorcontrib><creatorcontrib>Panagiotopoulos, Ioannis</creatorcontrib><title>Micromagnetic simulations study of skyrmions in magnetic FePt nanoelements</title><title>Journal of magnetism and magnetic materials</title><description>•Magnetic Skyrmions are generated by varying the magnetocrystalline anisotropy.•Skyrmions appear for magnetocrystalline anisotropy normal to nanoelement’s base.•Three skyrmions are formed and persist for a wide range of external field values.
The magnetization reversal in 330nm triangular prismatic magnetic nanoelements with variable magnetocrystalline anisotropy similar to that of partially chemically ordered FePt is studied using micromagnetic simulations employing Finite Element discretizations. Several magnetic properties including the evaluation of the magnetic skyrmion number S are computed in order to characterize magnetic configurations exhibiting vortex-like formations. Magnetic vortices and skyrmions are revealed in different systems generated by the variation of the magnitude and relative orientation of the magnetocrystalline anisotropy direction, with respect to the normal to the triangular prism base. Micromagnetic configurations with skyrmion number greater than one have been detected for the case where magnetocrystalline anisotropy was normal to nanoelement’s base. For particular magnetocrystalline anisotropy values three distinct skyrmions are formed and persist for a range of external fields. The simulation-based calculations of the skyrmion number S revealed that skyrmions can be created for magnetic nanoparticle systems lacking of chiral interactions such as Dzyaloshinsky-Moriya, but by only varying the magnetocrystalline anisotropy.</description><subject>Anisotropy</subject><subject>Computer simulation</subject><subject>Configurations</subject><subject>Finite element method</subject><subject>Finite element simulations</subject><subject>Hypothetical particles</subject><subject>Intermetallic compounds</subject><subject>Iron compounds</subject><subject>Magnetic nanoparticles</subject><subject>Magnetic properties</subject><subject>Magnetic skyrmions</subject><subject>Magnetic vortices</subject><subject>Magnetization reversal</subject><subject>Mathematical analysis</subject><subject>Micromagnetic simulations</subject><subject>Nanoparticles</subject><subject>Organic chemistry</subject><subject>Particle theory</subject><subject>Platinum compounds</subject><subject>Skyrmion number</subject><issn>0304-8853</issn><issn>1873-4766</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kMtKxDAUhoMoOI6-gKuC69bcmibgRgbHC4oudB3SzKmkTtIxSYV5ezuOuHR14PD95_IhdE5wRTARl33Ve-8riomqMK2wEgdoRmTDSt4IcYhmmGFeSlmzY3SSUo8xJlyKGXp4cjYO3rwHyM4WyflxbbIbQipSHlfbYuiK9LGN_qflQvGHLuElF8GEAdbgIeR0io46s05w9lvn6G1587q4Kx-fb-8X14-lZVTm0lpuaGdoDbxrlQLStorVK86bVtZcAMeGKWw6JqERSlHBsGonxhDLa9kRNkcX-7mbOHyOkLLuhzGGaaWmlAgqRE2biaJ7anovpQid3kTnTdxqgvXOme71zpneOdOY6snZFLrah2C6_8tB1Mk6CBZWLoLNejW4_-Lfwlt18Q</recordid><startdate>20190701</startdate><enddate>20190701</enddate><creator>Gergidis, Leonidas N.</creator><creator>Stavrou, Vasileios D.</creator><creator>Kourounis, Drosos</creator><creator>Panagiotopoulos, Ioannis</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0003-4907-1400</orcidid></search><sort><creationdate>20190701</creationdate><title>Micromagnetic simulations study of skyrmions in magnetic FePt nanoelements</title><author>Gergidis, Leonidas N. ; Stavrou, Vasileios D. ; Kourounis, Drosos ; Panagiotopoulos, Ioannis</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-cc4a2fa25e4fb99e1bb935d447b8546e40a390af38e769926309bbb9a1c458f13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Anisotropy</topic><topic>Computer simulation</topic><topic>Configurations</topic><topic>Finite element method</topic><topic>Finite element simulations</topic><topic>Hypothetical particles</topic><topic>Intermetallic compounds</topic><topic>Iron compounds</topic><topic>Magnetic nanoparticles</topic><topic>Magnetic properties</topic><topic>Magnetic skyrmions</topic><topic>Magnetic vortices</topic><topic>Magnetization reversal</topic><topic>Mathematical analysis</topic><topic>Micromagnetic simulations</topic><topic>Nanoparticles</topic><topic>Organic chemistry</topic><topic>Particle theory</topic><topic>Platinum compounds</topic><topic>Skyrmion number</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gergidis, Leonidas N.</creatorcontrib><creatorcontrib>Stavrou, Vasileios D.</creatorcontrib><creatorcontrib>Kourounis, Drosos</creatorcontrib><creatorcontrib>Panagiotopoulos, Ioannis</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of magnetism and magnetic materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gergidis, Leonidas N.</au><au>Stavrou, Vasileios D.</au><au>Kourounis, Drosos</au><au>Panagiotopoulos, Ioannis</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Micromagnetic simulations study of skyrmions in magnetic FePt nanoelements</atitle><jtitle>Journal of magnetism and magnetic materials</jtitle><date>2019-07-01</date><risdate>2019</risdate><volume>481</volume><spage>111</spage><epage>121</epage><pages>111-121</pages><issn>0304-8853</issn><eissn>1873-4766</eissn><abstract>•Magnetic Skyrmions are generated by varying the magnetocrystalline anisotropy.•Skyrmions appear for magnetocrystalline anisotropy normal to nanoelement’s base.•Three skyrmions are formed and persist for a wide range of external field values.
The magnetization reversal in 330nm triangular prismatic magnetic nanoelements with variable magnetocrystalline anisotropy similar to that of partially chemically ordered FePt is studied using micromagnetic simulations employing Finite Element discretizations. Several magnetic properties including the evaluation of the magnetic skyrmion number S are computed in order to characterize magnetic configurations exhibiting vortex-like formations. Magnetic vortices and skyrmions are revealed in different systems generated by the variation of the magnitude and relative orientation of the magnetocrystalline anisotropy direction, with respect to the normal to the triangular prism base. Micromagnetic configurations with skyrmion number greater than one have been detected for the case where magnetocrystalline anisotropy was normal to nanoelement’s base. For particular magnetocrystalline anisotropy values three distinct skyrmions are formed and persist for a range of external fields. The simulation-based calculations of the skyrmion number S revealed that skyrmions can be created for magnetic nanoparticle systems lacking of chiral interactions such as Dzyaloshinsky-Moriya, but by only varying the magnetocrystalline anisotropy.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jmmm.2019.02.096</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0003-4907-1400</orcidid></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Anisotropy Computer simulation Configurations Finite element method Finite element simulations Hypothetical particles Intermetallic compounds Iron compounds Magnetic nanoparticles Magnetic properties Magnetic skyrmions Magnetic vortices Magnetization reversal Mathematical analysis Micromagnetic simulations Nanoparticles Organic chemistry Particle theory Platinum compounds Skyrmion number |
| title | Micromagnetic simulations study of skyrmions in magnetic FePt nanoelements |
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