Micromagnetic simulation of an antiferromagnetic particle
[Display omitted] •A continuous micromagnetic model is derived for an antiferromagnet.•The resulting PDE are solved by FEM for a spherical uniaxial particle.•Without the dipole interactions spin flop/flip transitions are predicted.•Introducing dipole interactions different magnetization modes appear...
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| Veröffentlicht in: | Computational materials science 2015-02, Vol.97, p.42-47 |
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| container_title | Computational materials science |
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| creator | Ntallis, N. Efthimiadis, K.G. |
| description | [Display omitted]
•A continuous micromagnetic model is derived for an antiferromagnet.•The resulting PDE are solved by FEM for a spherical uniaxial particle.•Without the dipole interactions spin flop/flip transitions are predicted.•Introducing dipole interactions different magnetization modes appear.
A continuum micromagnetic model is derived, describing an antiferromagnet. Using the finite element method, magnetization curves are calculated for a spherical uniaxial particle, varying the particle’s size and the anisotropy field strength. Different magnetization processes appear by increasing the size of the particle. For large particles nucleation and expansion of a reversed domain is observed, separated by an almost 90° wall. An estimation of the single domain radius Rc is made. |
| doi_str_mv | 10.1016/j.commatsci.2014.10.010 |
| format | Article |
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•A continuous micromagnetic model is derived for an antiferromagnet.•The resulting PDE are solved by FEM for a spherical uniaxial particle.•Without the dipole interactions spin flop/flip transitions are predicted.•Introducing dipole interactions different magnetization modes appear.
A continuum micromagnetic model is derived, describing an antiferromagnet. Using the finite element method, magnetization curves are calculated for a spherical uniaxial particle, varying the particle’s size and the anisotropy field strength. Different magnetization processes appear by increasing the size of the particle. For large particles nucleation and expansion of a reversed domain is observed, separated by an almost 90° wall. An estimation of the single domain radius Rc is made.</description><identifier>ISSN: 0927-0256</identifier><identifier>EISSN: 1879-0801</identifier><identifier>DOI: 10.1016/j.commatsci.2014.10.010</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Antiferromagnet ; Antiferromagnetism ; Computer simulation ; Field strength ; Finite element method ; Magnetization ; Mathematical analysis ; Mathematical models ; Micromagnetic simulation ; Nucleation ; Walls</subject><ispartof>Computational materials science, 2015-02, Vol.97, p.42-47</ispartof><rights>2014 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c348t-6a844eabbeb9c085ebf52680ea0f652b5883bb812183541de0cb9368731d8da63</citedby><cites>FETCH-LOGICAL-c348t-6a844eabbeb9c085ebf52680ea0f652b5883bb812183541de0cb9368731d8da63</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0927025614006843$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Ntallis, N.</creatorcontrib><creatorcontrib>Efthimiadis, K.G.</creatorcontrib><title>Micromagnetic simulation of an antiferromagnetic particle</title><title>Computational materials science</title><description>[Display omitted]
•A continuous micromagnetic model is derived for an antiferromagnet.•The resulting PDE are solved by FEM for a spherical uniaxial particle.•Without the dipole interactions spin flop/flip transitions are predicted.•Introducing dipole interactions different magnetization modes appear.
A continuum micromagnetic model is derived, describing an antiferromagnet. Using the finite element method, magnetization curves are calculated for a spherical uniaxial particle, varying the particle’s size and the anisotropy field strength. Different magnetization processes appear by increasing the size of the particle. For large particles nucleation and expansion of a reversed domain is observed, separated by an almost 90° wall. An estimation of the single domain radius Rc is made.</description><subject>Antiferromagnet</subject><subject>Antiferromagnetism</subject><subject>Computer simulation</subject><subject>Field strength</subject><subject>Finite element method</subject><subject>Magnetization</subject><subject>Mathematical analysis</subject><subject>Mathematical models</subject><subject>Micromagnetic simulation</subject><subject>Nucleation</subject><subject>Walls</subject><issn>0927-0256</issn><issn>1879-0801</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqFkEtLBDEQhIMouK7-BvfoZcbOYzKZ47L4ghUveg5JpkeyzGNNMoL_3iwr4k1oKOiuaqiPkGsKJQUqb3elm4bBpOh8yYCKvC2BwglZUFU3BSigp2QBDasLYJU8Jxcx7iAnG8UWpHn2LkyDeR8xebeKfph7k_w0rqZuZcY8yXcY_lj2JmTp8ZKcdaaPePWjS_J2f_e6eSy2Lw9Pm_W2cFyoVEijhEBjLdrGgarQdhWTCtBAJytmK6W4tYoyqnglaIvgbMOlqjltVWskX5Kb4999mD5mjEkPPjrsezPiNEdNpQQQQkmerfXRmivFGLDT--AHE740BX2ApXf6F5Y-wDocMqycXB-TmJt8egw6O3B02PqALul28v_--AbmkneC</recordid><startdate>20150201</startdate><enddate>20150201</enddate><creator>Ntallis, N.</creator><creator>Efthimiadis, K.G.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>20150201</creationdate><title>Micromagnetic simulation of an antiferromagnetic particle</title><author>Ntallis, N. ; Efthimiadis, K.G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c348t-6a844eabbeb9c085ebf52680ea0f652b5883bb812183541de0cb9368731d8da63</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Antiferromagnet</topic><topic>Antiferromagnetism</topic><topic>Computer simulation</topic><topic>Field strength</topic><topic>Finite element method</topic><topic>Magnetization</topic><topic>Mathematical analysis</topic><topic>Mathematical models</topic><topic>Micromagnetic simulation</topic><topic>Nucleation</topic><topic>Walls</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ntallis, N.</creatorcontrib><creatorcontrib>Efthimiadis, K.G.</creatorcontrib><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</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>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Computational materials science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ntallis, N.</au><au>Efthimiadis, K.G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Micromagnetic simulation of an antiferromagnetic particle</atitle><jtitle>Computational materials science</jtitle><date>2015-02-01</date><risdate>2015</risdate><volume>97</volume><spage>42</spage><epage>47</epage><pages>42-47</pages><issn>0927-0256</issn><eissn>1879-0801</eissn><abstract>[Display omitted]
•A continuous micromagnetic model is derived for an antiferromagnet.•The resulting PDE are solved by FEM for a spherical uniaxial particle.•Without the dipole interactions spin flop/flip transitions are predicted.•Introducing dipole interactions different magnetization modes appear.
A continuum micromagnetic model is derived, describing an antiferromagnet. Using the finite element method, magnetization curves are calculated for a spherical uniaxial particle, varying the particle’s size and the anisotropy field strength. Different magnetization processes appear by increasing the size of the particle. For large particles nucleation and expansion of a reversed domain is observed, separated by an almost 90° wall. An estimation of the single domain radius Rc is made.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.commatsci.2014.10.010</doi><tpages>6</tpages></addata></record> |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Antiferromagnet Antiferromagnetism Computer simulation Field strength Finite element method Magnetization Mathematical analysis Mathematical models Micromagnetic simulation Nucleation Walls |
| title | Micromagnetic simulation of an antiferromagnetic particle |
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