{"id":9411,"date":"2023-12-03T09:49:10","date_gmt":"2023-12-03T08:49:10","guid":{"rendered":"https:\/\/fermi.univ-tlse3.fr\/?post_type=tribe_events&#038;p=9411"},"modified":"2023-12-04T08:48:17","modified_gmt":"2023-12-04T07:48:17","slug":"fluctuations-in-an-ising-ferromagnet-driven-by-a-slowly-oscillating-field-with-a-constant-bias-experimentsimulation-match-gloria-buendia-lpt-seminar-5-12-2023-14h","status":"publish","type":"tribe_events","link":"https:\/\/fermi.univ-tlse3.fr\/fr\/home\/event\/fluctuations-in-an-ising-ferromagnet-driven-by-a-slowly-oscillating-field-with-a-constant-bias-experimentsimulation-match-gloria-buendia-lpt-seminar-5-12-2023-14h\/","title":{"rendered":"Fluctuations in an Ising ferromagnet driven by a slowly oscillating field with a constant bias (Experiment+Simulation match). &#8211; (Gloria Buend\u00eda \/ LPT \/ Seminar). &#8211; 5\/12\/2023, 14H"},"content":{"rendered":"<p><span style=\"font-size: 20px;\"><span style=\"color: #191970;\"><strong>Gloria Buend\u00eda <\/strong><\/span> (Universit\u00e9 Sim\u00f3n Bol\u00edvar, Caracas, Venezuela)<\/span><\/p>\n<p><span style=\"background-color: #cecece;\">Seminar LPT, 5\/12\/2023, 14H, 3R1, seminar room, 3rd floor<\/span><\/p>\n<p><strong>Summary :<\/strong><br \/>\nWe present a numerical and theoretical study that supports and explains experimental results on anomalous magnetization fluctuations observed in a uniaxial ferromagnetic film which is forced by an oscillating field to which is added a constant bias field. We perform numerical Monte Carlo simulations of a 2D kinetic Ising model and analyze the data using a droplet model of metastable decay. Our results clearly show that the experimental results are not due to any residual magnetostatic interactions. We find that the origin of the anomalous magnetization fluctuations are not a a critical phenomenon associated with a phase transition. Rather it is a stochastic-resonance phenomena that have no counterpart in the corresponding thermodynamic phase transition, providing a reminder that the equivalence between the dynamical phase transition to an equilibrium phase transition is only valid near the critical region.<\/p>\n<hr \/>\n<div class=\"leaflet-map WPLeafletMap\" style=\"height:300px; width:80%;\"><\/div><script>\nwindow.WPLeafletMapPlugin = window.WPLeafletMapPlugin || [];\nwindow.WPLeafletMapPlugin.push(function WPLeafletMapShortcode() {\/*<script>*\/\nvar baseUrl = atob('aHR0cHM6Ly97c30udGlsZS5vcGVuc3RyZWV0bWFwLm9yZy97en0ve3h9L3t5fS5wbmc=');\nvar base = (!baseUrl && window.MQ) ?\n    window.MQ.mapLayer() : L.tileLayer(baseUrl,\n        L.Util.extend({}, {\n            detectRetina: 0,\n        },\n        {\"subdomains\":\"abc\",\"noWrap\":false,\"maxZoom\":18}        )\n    );\n    var options = L.Util.extend({}, {\n        layers: [base],\n        attributionControl: false\n    },\n    {\"zoomControl\":true,\"scrollWheelZoom\":true,\"doubleClickZoom\":true,\"fitBounds\":true,\"minZoom\":9,\"maxZoom\":18,\"maxBounds\":null,\"attribution\":\"<a href=\\\"http:\\\/\\\/leafletjs.com\\\" title=\\\"Une biblioth\\u00e8que JS pour des cartes interactives\\\">Leaflet<\\\/a>; \\u00a9 <a href=\\\"http:\\\/\\\/www.openstreetmap.org\\\/copyright\\\">OpenStreetMap<\\\/a> contributeurs\"},\n    {});\nwindow.WPLeafletMapPlugin.createMap(options).setView([43.560705280387,1.4674275538563],16);window.WPLeafletMapPlugin.createScale({});});<\/script>\n<script>\nwindow.WPLeafletMapPlugin = window.WPLeafletMapPlugin || [];\nwindow.WPLeafletMapPlugin.push(function WPLeafletMarkerShortcode() {\/*<script>*\/\nvar map = window.WPLeafletMapPlugin.getCurrentMap();\nvar group = window.WPLeafletMapPlugin.getCurrentGroup();\nvar marker_options = window.WPLeafletMapPlugin.getIconOptions({});\nvar marker = L.marker(\n    [0,0],\n    marker_options\n);\nvar is_image = map.is_image_map;\n    marker.setLatLng( map.getCenter() );\nif (marker_options.draggable) {\n    marker.on('dragend', function () {\n        var latlng = this.getLatLng();\n        var lat = latlng.lat;\n        var lng = latlng.lng;\n        if (is_image) {\n            console.log('leaflet-marker y=' + lat + ' x=' + lng);\n        } else {\n            console.log('leaflet-marker lat=' + lat + ' lng=' + lng);\n        }\n    });\n}\nmarker.addTo( group );\nmarker.bindPopup(window.WPLeafletMapPlugin.unescape('Seminar room, 3R1'));window.WPLeafletMapPlugin.markers.push( marker );\n        });<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Gloria Buend\u00eda (Universit\u00e9 Sim\u00f3n Bol\u00edvar, Caracas, Venezuela) Seminar LPT, 5\/12\/2023, 14H, 3R1, seminar room, 3rd floor Summary : We present a numerical and theoretical study that supports and explains experimental&hellip;&nbsp;<a href=\"https:\/\/fermi.univ-tlse3.fr\/fr\/home\/event\/fluctuations-in-an-ising-ferromagnet-driven-by-a-slowly-oscillating-field-with-a-constant-bias-experimentsimulation-match-gloria-buendia-lpt-seminar-5-12-2023-14h\/\" rel=\"bookmark\">Lire la suite &raquo;<span class=\"screen-reader-text\">Fluctuations in an Ising ferromagnet driven by a slowly oscillating field with a constant bias (Experiment+Simulation match). &#8211; (Gloria Buend\u00eda \/ LPT \/ Seminar). &#8211; 5\/12\/2023, 14H<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"template":"","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","_tribe_events_status":"","_tribe_events_status_reason":"","footnotes":""},"tags":[],"tribe_events_cat":[48,313,233],"class_list":["post-9411","tribe_events","type-tribe_events","status-publish","hentry","tribe_events_cat-events","tribe_events_cat-lpt","tribe_events_cat-seminars","cat_events","cat_lpt","cat_seminars"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Fluctuations in an Ising ferromagnet driven by a slowly oscillating field with a constant bias (Experiment+Simulation match). - (Gloria Buend\u00eda \/ LPT \/ Seminar). - 5\/12\/2023, 14H - FeRMI<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fermi.univ-tlse3.fr\/fr\/home\/event\/fluctuations-in-an-ising-ferromagnet-driven-by-a-slowly-oscillating-field-with-a-constant-bias-experimentsimulation-match-gloria-buendia-lpt-seminar-5-12-2023-14h\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fluctuations in an Ising ferromagnet driven by a slowly oscillating field with a constant bias (Experiment+Simulation match). - (Gloria Buend\u00eda \/ LPT \/ Seminar). - 5\/12\/2023, 14H - FeRMI\" \/>\n<meta property=\"og:description\" content=\"Gloria Buend\u00eda (Universit\u00e9 Sim\u00f3n Bol\u00edvar, Caracas, Venezuela) Seminar LPT, 5\/12\/2023, 14H, 3R1, seminar room, 3rd floor Summary : We present a numerical and theoretical study that supports and explains experimental&hellip;&nbsp;Lire la suite &raquo;Fluctuations in an Ising ferromagnet driven by a slowly oscillating field with a constant bias (Experiment+Simulation match). &#8211; 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