{"id":263,"date":"2020-09-02T17:46:57","date_gmt":"2020-09-02T21:46:57","guid":{"rendered":"https:\/\/sciences.ucf.edu\/physics\/afmspin\/?p=263"},"modified":"2021-09-03T13:09:45","modified_gmt":"2021-09-03T17:09:45","slug":"spin-wave-transmission-through-an-internal-boundary","status":"publish","type":"post","link":"https:\/\/sciences.ucf.edu\/physics\/afmspin\/spin-wave-transmission-through-an-internal-boundary\/","title":{"rendered":"Spin-wave transmission through an internal boundary"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"263\" class=\"elementor elementor-263\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ec51895 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ec51895\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5e87681\" data-id=\"5e87681\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-13d5e5b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"13d5e5b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-0f8cf19\" data-id=\"0f8cf19\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1035e60 elementor-widget elementor-widget-heading\" data-id=\"1035e60\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Spin-wave transmission through an internal boundary: Beyond the scalar approximation<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-48969bb elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"48969bb\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-9afd429\" data-id=\"9afd429\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b95ba64 elementor-widget elementor-widget-image\" data-id=\"b95ba64\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"347\" height=\"262\" src=\"https:\/\/sciences.ucf.edu\/physics\/afmspin\/wp-content\/uploads\/sites\/31\/2020\/09\/spin-waves.jpg\" class=\"attachment-large size-large wp-image-219\" alt=\"Graphs (a) through (d) display the relationships between SW frequency in GHz or SW ellipticity versus wave number (k_y), with varying magnetic fields (B_x) and electric fields (E) indicated in the legends.\" srcset=\"https:\/\/sciences.ucf.edu\/physics\/afmspin\/wp-content\/uploads\/sites\/31\/2020\/09\/spin-waves.jpg 347w, https:\/\/sciences.ucf.edu\/physics\/afmspin\/wp-content\/uploads\/sites\/31\/2020\/09\/spin-waves-300x227.jpg 300w\" sizes=\"(max-width: 347px) 100vw, 347px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-f515668 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f515668\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-184e3b6\" data-id=\"184e3b6\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-deec8b5 elementor-widget elementor-widget-text-editor\" data-id=\"deec8b5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"color: #000000\">The transmission and reflection of a spin wave at an internal boundary created by the local variation of anisotropy (or a bias magnetic field) are studied taking into account not only the changes in the wave amplitude, but also the changes in the wave polarization. It is shown that the account of the changes in the spin-wave polarization before and after the boundary leads to (i) increase of the spin-wave amplitude reflection coefficient, (ii) appearance of an additional phase shift 0<em>,\u03c0 <\/em>in both transmitted and reflected waves, and (iii) creation of additional evanescent waves in the vicinity of the boundary. It is also shown that even when significant changes in the transmitted wave polarization take place at the boundary, a spin wave could pass a finite-width boundary without reflection, if a certain resonance condition is satisfied. The effect of the polarization change at an internal boundary is especially pronounced for the exchange-dominated spin waves, while in the case of the dipole-dominated spin waves, this effect can vanish completely for certain configurations of the static magnetization. This work has been published in PRB and can be accessed <a href=\"https:\/\/journals.aps.org\/prb\/abstract\/10.1103\/PhysRevB.101.144430\">here<\/a>.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Spin-wave transmission through an internal boundary: Beyond the scalar approximation The transmission and reflection of a spin wave at an internal boundary created by the local variation of anisotropy (or <a class=\"more-link\" href=\"https:\/\/sciences.ucf.edu\/physics\/afmspin\/spin-wave-transmission-through-an-internal-boundary\/\">Continue Reading &rarr;<\/a><\/p>\n","protected":false},"author":61,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_links_to":"","_links_to_target":""},"categories":[7],"tags":[],"class_list":["post-263","post","type-post","status-publish","format-standard","hentry","category-publications"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Spin-wave transmission through an internal boundary -<\/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:\/\/sciences.ucf.edu\/physics\/afmspin\/spin-wave-transmission-through-an-internal-boundary\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Spin-wave transmission through an internal boundary -\" \/>\n<meta property=\"og:description\" content=\"Spin-wave transmission through an internal boundary: Beyond the scalar approximation The transmission and reflection of a spin wave at an internal boundary created by the local variation of anisotropy (or Continue Reading &rarr;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sciences.ucf.edu\/physics\/afmspin\/spin-wave-transmission-through-an-internal-boundary\/\" \/>\n<meta property=\"article:published_time\" content=\"2020-09-02T21:46:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2021-09-03T17:09:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sciences.ucf.edu\/physics\/afmspin\/wp-content\/uploads\/sites\/31\/2020\/09\/spin-waves.jpg\" \/>\n<meta name=\"author\" content=\"Gyan Khatri\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Gyan Khatri\" 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