{"id":3116,"date":"2009-10-08T18:08:48","date_gmt":"2009-10-08T22:08:48","guid":{"rendered":"https:\/\/www.bu.edu\/tech\/research\/scv_import\/visualization\/gallery\/pivbl\/"},"modified":"2023-05-22T14:00:46","modified_gmt":"2023-05-22T18:00:46","slug":"pivbl","status":"publish","type":"page","link":"https:\/\/www.bu.edu\/tech\/support\/research\/whats-happening\/highlights\/pivbl\/","title":{"rendered":"Simulations of 3D Non-Periodic Structures of Pi VBL and 2Pi-VBL in Magnetic Garnet"},"content":{"rendered":"<div style=\"margin-left: auto; margin-right: auto; text-align:center\"><img src=\"https:\/\/www.bu.edu\/tech\/files\/2010\/02\/series2_bigthumb.gif\" alt=\"series2\" \/>\n<\/div>\n<p>Makhlouf Redjdal and Floyd B. Humphrey<br \/>\nDepartment of Electrical, Computer and Systems Engineering<br \/>\nBoston University<\/p>\n<p>The dynamics of three-dimensional non-periodic structures of single Pi vertical Bloch line (VBL) and single 2Pi-VBL in magnetic garnet are investigated using micromagnetic simulations by solving the Lifshitz Gilbert equation.<\/p>\n<p>A comoving technique is used to track a single domain wall with a single Pi-VBL when a field is applied perpendicularly to the surface of the film. A 2Pi-VBL is split into two single Pi VBLs when an in-plane field is applied in the same direction as that of the center spin of the 2Pi-VBL. The images show the magnetization direction in a side view of the domain center slice starting from the equilibrium state until the steady state is reached, The color map represents the in-plane magnetization angle ranging from 0 to 180 degrees.<\/p>\n<h4>Video Sequences<\/h4>\n<p><a name=\"PIVBL1\" href=\"http:\/\/scv.bu.edu\/SCV\/vizgal\/pivbl\/pivbl1.mpg\" id=\"PIVBL1\" aria-label=\"Video Sequence opens a video that shows Pi-VBL in a Perpendicular Field. 3D Dynamics in a Comoving system\"><\/p>\n<div class=\"alignleft\" style=\"padding-right: 10px\"><img src=\"https:\/\/www.bu.edu\/tech\/files\/2010\/02\/pivbl_0.jpg\" alt=\"pivbl0\" align=\"left\" hspace=\"5\" \/><\/div>\n<p>Video Sequence<\/a><\/p>\n<p>Pi-VBL in a Perpendicular Field. 3D Dynamics in a Comoving system.<\/p>\n<div style=\"clear: left;\">&nbsp;<\/div>\n<p><a name=\"PIVBL2\" href=\"http:\/\/scv.bu.edu\/SCV\/vizgal\/pivbl\/pivbl2.mpg\" id=\"PIVBL2\" aria-label=\"Video Sequence opens a video to that shows 2Pi-VBL in a 30 Oe In-Plane Field. Field applied for 8 nanoseconds. Subsequent motion is with no field applied\"><\/p>\n<div class=\"alignleft\" style=\"padding-right: 10px\"><img src=\"https:\/\/www.bu.edu\/tech\/files\/2010\/02\/pivbl_1.jpg\" alt=\"pivbl1\" align=\"left\" hspace=\"5\" \/><\/div>\n<p>Video Sequence<\/a><\/p>\n<p>2Pi-VBL in a 30 Oe In-Plane Field. Field applied for 8 nanoseconds. Subsequent motion is with no field applied.<\/p>\n<hr \/>\n<p><strong>Hardware:<\/strong> Thinking Machines Corporation CM-5 at Boston University.<br \/>\n<strong>Software:<\/strong> Program written by Makhlouf Redjdal in CM Fortran and CMSSL.<br \/>\n<strong>Graphics programming and video production:<\/strong> Erik Brisson, Scientific Computing and Visualization Group, Boston University.<br \/>\n<strong>Acknowledgments:<\/strong> Special thanks to Robert Putnam.<\/p>\n<p style=\"margin:0px\">&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Makhlouf Redjdal and Floyd B. Humphrey Department of Electrical, Computer and Systems Engineering Boston University The dynamics of three-dimensional non-periodic structures of single Pi vertical Bloch line (VBL) and single 2Pi-VBL in magnetic garnet are investigated using micromagnetic simulations by solving the Lifshitz Gilbert equation. A comoving technique is used to track a single domain&#8230;<\/p>\n","protected":false},"author":1692,"featured_media":0,"parent":57322,"menu_order":57,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"_links":{"self":[{"href":"https:\/\/www.bu.edu\/tech\/wp-json\/wp\/v2\/pages\/3116"}],"collection":[{"href":"https:\/\/www.bu.edu\/tech\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.bu.edu\/tech\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.bu.edu\/tech\/wp-json\/wp\/v2\/users\/1692"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bu.edu\/tech\/wp-json\/wp\/v2\/comments?post=3116"}],"version-history":[{"count":10,"href":"https:\/\/www.bu.edu\/tech\/wp-json\/wp\/v2\/pages\/3116\/revisions"}],"predecessor-version":[{"id":145732,"href":"https:\/\/www.bu.edu\/tech\/wp-json\/wp\/v2\/pages\/3116\/revisions\/145732"}],"up":[{"embeddable":true,"href":"https:\/\/www.bu.edu\/tech\/wp-json\/wp\/v2\/pages\/57322"}],"wp:attachment":[{"href":"https:\/\/www.bu.edu\/tech\/wp-json\/wp\/v2\/media?parent=3116"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}