Rotational motion of a magnetic vortex in a circular disk induced by injection of an electric current through an off-centered point contact
The dynamics of a magnetic vortex in a circular disk with an off-centered point contact is theoretically studied based on Thiele's equation and two-vortices model. It is shown that the steady-state rotational motion of a vortex core is induced by an electric current, and the threshold current o...
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| Veröffentlicht in: | Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2014-12, Vol.90 (21), Article 214437 |
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| container_title | Physical review. B, Condensed matter and materials physics |
| container_volume | 90 |
| creator | Tsukahara, Hiroshi Imamura, Hiroshi |
| description | The dynamics of a magnetic vortex in a circular disk with an off-centered point contact is theoretically studied based on Thiele's equation and two-vortices model. It is shown that the steady-state rotational motion of a vortex core is induced by an electric current, and the threshold current of this rotational motion increases as the distance between the point contact and the center of the disk increases. The increase rate of the threshold current depends on the curling of the vortex because the Oersted field acts as an attractive or repulsive force between the vortex core and the point contact, depending on the curling of the vortex. |
| doi_str_mv | 10.1103/PhysRevB.90.214437 |
| format | Article |
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It is shown that the steady-state rotational motion of a vortex core is induced by an electric current, and the threshold current of this rotational motion increases as the distance between the point contact and the center of the disk increases. The increase rate of the threshold current depends on the curling of the vortex because the Oersted field acts as an attractive or repulsive force between the vortex core and the point contact, depending on the curling of the vortex.</description><identifier>ISSN: 1098-0121</identifier><identifier>EISSN: 1550-235X</identifier><identifier>DOI: 10.1103/PhysRevB.90.214437</identifier><language>eng</language><subject>Circularity ; Condensed matter ; Disks ; Electric current ; Fluid flow ; Point contact ; Rotational ; Threshold currents ; Vortices</subject><ispartof>Physical review. 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B, Condensed matter and materials physics</title><description>The dynamics of a magnetic vortex in a circular disk with an off-centered point contact is theoretically studied based on Thiele's equation and two-vortices model. It is shown that the steady-state rotational motion of a vortex core is induced by an electric current, and the threshold current of this rotational motion increases as the distance between the point contact and the center of the disk increases. The increase rate of the threshold current depends on the curling of the vortex because the Oersted field acts as an attractive or repulsive force between the vortex core and the point contact, depending on the curling of the vortex.</description><subject>Circularity</subject><subject>Condensed matter</subject><subject>Disks</subject><subject>Electric current</subject><subject>Fluid flow</subject><subject>Point contact</subject><subject>Rotational</subject><subject>Threshold currents</subject><subject>Vortices</subject><issn>1098-0121</issn><issn>1550-235X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNo9UE1LAzEQXUTBWv0DnnL0snWSzdrmqOIXFJSi4C2kyaRN3d3UJFvsb_BPm1L1NG_ex8C8ojinMKIUqsuX5TbOcHMzEjBilPNqfFAMaF1Dyar6_TBjEJMSKKPHxUmMKwDKBWeD4nvmk0rOd6ohrd8B4i1RpFWLDpPTZONDwi_iukxqF3TfqECMix-ZMr1GQ-bbDFeo_8MdwSavIad1HwJ2iaRl8P1iudO8taXOHIacXXuXVe27pHQ6LY6saiKe_c5h8XZ_93r7WE6fH55ur6elrvhVKg0YgTjXNXAmMsMoMGMNVGaurKLK5tdqtIzVlAPnNWVCGcE0s1RorbAaFhf7u-vgP3uMSbYuamwa1aHvo6RjACEmMBlnK9tbdfAxBrRyHVyrwlZSkLvm5V_zUoDcN1_9AJIte7Q</recordid><startdate>20141224</startdate><enddate>20141224</enddate><creator>Tsukahara, Hiroshi</creator><creator>Imamura, Hiroshi</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20141224</creationdate><title>Rotational motion of a magnetic vortex in a circular disk induced by injection of an electric current through an off-centered point contact</title><author>Tsukahara, Hiroshi ; Imamura, Hiroshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c346t-d0d9eebc504293462102dfd03dbafa1af1495ef225140445129ad92c2f19ccae3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Circularity</topic><topic>Condensed matter</topic><topic>Disks</topic><topic>Electric current</topic><topic>Fluid flow</topic><topic>Point contact</topic><topic>Rotational</topic><topic>Threshold currents</topic><topic>Vortices</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tsukahara, Hiroshi</creatorcontrib><creatorcontrib>Imamura, Hiroshi</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physical review. B, Condensed matter and materials physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tsukahara, Hiroshi</au><au>Imamura, Hiroshi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Rotational motion of a magnetic vortex in a circular disk induced by injection of an electric current through an off-centered point contact</atitle><jtitle>Physical review. B, Condensed matter and materials physics</jtitle><date>2014-12-24</date><risdate>2014</risdate><volume>90</volume><issue>21</issue><artnum>214437</artnum><issn>1098-0121</issn><eissn>1550-235X</eissn><abstract>The dynamics of a magnetic vortex in a circular disk with an off-centered point contact is theoretically studied based on Thiele's equation and two-vortices model. It is shown that the steady-state rotational motion of a vortex core is induced by an electric current, and the threshold current of this rotational motion increases as the distance between the point contact and the center of the disk increases. The increase rate of the threshold current depends on the curling of the vortex because the Oersted field acts as an attractive or repulsive force between the vortex core and the point contact, depending on the curling of the vortex.</abstract><doi>10.1103/PhysRevB.90.214437</doi></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1098-0121 |
| ispartof | Physical review. B, Condensed matter and materials physics, 2014-12, Vol.90 (21), Article 214437 |
| issn | 1098-0121 1550-235X |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1700998087 |
| source | American Physical Society Journals |
| subjects | Circularity Condensed matter Disks Electric current Fluid flow Point contact Rotational Threshold currents Vortices |
| title | Rotational motion of a magnetic vortex in a circular disk induced by injection of an electric current through an off-centered point contact |
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