{"id":112,"date":"2019-05-27T08:58:28","date_gmt":"2019-05-27T06:58:28","guid":{"rendered":"https:\/\/magnefi.c2n.u-psud.fr\/?page_id=112"},"modified":"2020-06-23T11:48:02","modified_gmt":"2020-06-23T09:48:02","slug":"upsud-ii-photo-active-ionic-gating","status":"publish","type":"page","link":"https:\/\/magnefi.c2n.u-psud.fr\/?page_id=112","title":{"rendered":"UPSud II: Photo-active ionic gating"},"content":{"rendered":"\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img loading=\"lazy\" src=\"https:\/\/magnefi.c2n.u-psud.fr\/wp-content\/uploads\/2019\/06\/PolymGates-1024x443.png\" alt=\"\" class=\"wp-image-282\" width=\"634\" height=\"273\" srcset=\"https:\/\/magnefi.c2n.u-psud.fr\/wp-content\/uploads\/2019\/06\/PolymGates-1024x443.png 1024w, https:\/\/magnefi.c2n.u-psud.fr\/wp-content\/uploads\/2019\/06\/PolymGates-300x130.png 300w, https:\/\/magnefi.c2n.u-psud.fr\/wp-content\/uploads\/2019\/06\/PolymGates-768x332.png 768w, https:\/\/magnefi.c2n.u-psud.fr\/wp-content\/uploads\/2019\/06\/PolymGates-612x265.png 612w, https:\/\/magnefi.c2n.u-psud.fr\/wp-content\/uploads\/2019\/06\/PolymGates-1224x529.png 1224w, https:\/\/magnefi.c2n.u-psud.fr\/wp-content\/uploads\/2019\/06\/PolymGates-936x405.png 936w, https:\/\/magnefi.c2n.u-psud.fr\/wp-content\/uploads\/2019\/06\/PolymGates-1872x809.png 1872w, https:\/\/magnefi.c2n.u-psud.fr\/wp-content\/uploads\/2019\/06\/PolymGates-1440x623.png 1440w, https:\/\/magnefi.c2n.u-psud.fr\/wp-content\/uploads\/2019\/06\/PolymGates-720x311.png 720w\" sizes=\"(max-width: 634px) 100vw, 634px\" \/><\/figure><\/div>\n\n\n\n<p><strong>Host:<\/strong> Paris Sud University<\/p>\n\n\n\n<p><strong>Location:<\/strong> Palaiseau, France<\/p>\n\n\n\n<p><strong>Supervisor:<\/strong> <a href=\"http:\/\/integnano.c2n.u-psud.fr\/\">Liza Herrera Diez <\/a><\/p>\n\n\n\n<p><strong>Scientific\nproject<\/strong><strong>:<\/strong><\/p>\n\n\n\n<p>This project will explore E-field gating of magnetic\ndomain wall motion using parallel arrays of bipolar and non-volatile gates defined\nby light-controlled ionics. Photo-active polymer films will be the support of\nmobile ionic charges which under a gate voltage can migrate to the surfaces of\nthe polymer. Photo-induced polymerisation will then fix the position of the\nionic charges creating non-volatile gates. By appropriately choosing the light\nexposure pattern and\/or the gate contact geometry, arrays of non-volatile gates\nwill be created across extended areas with both positive and negative charges. The\nflexible polymer containing the gate design can be later easily placed on top\nof a magnetic film to apply strong E-fields in a unique \u2018stick-on\u2019 device\nconcept that can be transferred and reused on multiple magnetic surfaces. This\ndevice design is inspired on energy harvesting technologies and this project\nwill innovate in adapting it to spintronics devices. <\/p>\n\n\n\n<p>This approach will allow for creating gate arrays with\naccumulation of charges of both polarities and different charge densities without\nthe need of wiring or applied voltages. Simply sticking the polymer containing\nthe gate array on a magnetic material with perpendicular anisotropy will\ndirectly transfer a multistate anisotropy landscape onto the film. This will be\nexploited to study in detail the motion of magnetic domain walls in a multilevel\nartificial pinning potential. A key aspect of the project will be creating gate\narrays that can effectively define DW paths and nucleation\/pinning points with\nthe ultimate goal of designing domain wall based \u2018stick-on\u2019 logic circuits. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Host: Paris Sud University Location: Palaiseau, France Supervisor: Liza Herrera Diez Scientific project: This project will explore E-field gating of magnetic domain wall motion using parallel arrays of bipolar and non-volatile gates defined by light-controlled ionics. Photo-active polymer films will be the support of mobile ionic charges which under a gate voltage can migrate to&#8230; <a href=\"https:\/\/magnefi.c2n.u-psud.fr\/?page_id=112\">Continue reading <span class=\"screen-reader-text\">&#8220;UPSud II: Photo-active ionic gating&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":52,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"templates\/fullwidth.php","meta":[],"_links":{"self":[{"href":"https:\/\/magnefi.c2n.u-psud.fr\/index.php?rest_route=\/wp\/v2\/pages\/112"}],"collection":[{"href":"https:\/\/magnefi.c2n.u-psud.fr\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/magnefi.c2n.u-psud.fr\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/magnefi.c2n.u-psud.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/magnefi.c2n.u-psud.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=112"}],"version-history":[{"count":12,"href":"https:\/\/magnefi.c2n.u-psud.fr\/index.php?rest_route=\/wp\/v2\/pages\/112\/revisions"}],"predecessor-version":[{"id":467,"href":"https:\/\/magnefi.c2n.u-psud.fr\/index.php?rest_route=\/wp\/v2\/pages\/112\/revisions\/467"}],"up":[{"embeddable":true,"href":"https:\/\/magnefi.c2n.u-psud.fr\/index.php?rest_route=\/wp\/v2\/pages\/52"}],"wp:attachment":[{"href":"https:\/\/magnefi.c2n.u-psud.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}