{"id":4900,"date":"2022-02-17T15:07:29","date_gmt":"2022-02-17T18:07:29","guid":{"rendered":"https:\/\/sbfisica.org.br\/v1\/sbf\/2022\/02\/17\/vortices-supercondutores-e-skyrmions-formam-padroes-complexos\/"},"modified":"2022-08-15T00:44:08","modified_gmt":"2022-08-15T03:44:08","slug":"vortices-supercondutores-e-skyrmions-formam-padroes-complexos","status":"publish","type":"post","link":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/vortices-supercondutores-e-skyrmions-formam-padroes-complexos\/","title":{"rendered":"V\u00f3rtices supercondutores e skyrmions formam padr\u00f5es complexos"},"content":{"rendered":"<address><span style=\"background-color: inherit; color: inherit; font-family: inherit; font-size: 1rem;\">Simula\u00e7\u00f5es computacionais realizadas pelo f\u00edsico Cl\u00e9cio Clemente, professor da Universidade Federal de Pernambuco (UFPE), e seu aluno de doutorado, Jos\u00e9 Ferreira Neto, mostram como \u00e9 poss\u00edvel formar padr\u00f5es de listras, bolhas e got\u00edculas de tamanho nanom\u00e9trico na superf\u00edcie de materiais h\u00edbridos, compostos por uma camada supercondutora e outra magn\u00e9tica. O controle da forma\u00e7\u00e3o desses padr\u00f5es pode ter aplica\u00e7\u00f5es em novas tecnologias de spintr\u00f4nica e computa\u00e7\u00e3o qu\u00e2ntica.<\/span><\/address>\n<p><!--more--><\/p>\n<p><iframe style=\"color: inherit; font-family: inherit; font-size: 1rem; display: block; margin-left: auto; margin-right: auto;\" title=\"YouTube video player\" data-src=\"https:\/\/www.youtube.com\/embed\/R71qaeuNPFs\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" data-load-mode=\"1\"><\/iframe><\/p>\n<p>O trabalho publicado recentemente na revista Physical Review Letters mostra como v\u00f3rtices supercondutores interagindo com redemoinhos de spin podem formar estruturas complexas semelhantes a emuls\u00f5es em l\u00edquidos. Sob condi\u00e7\u00f5es apropriadas, dois l\u00edquidos imisc\u00edveis podem formar emuls\u00f5es est\u00e1veis, onde uma das subst\u00e2ncias encontra-se dispersa na outra na forma de got\u00edculas. Leite e manteiga s\u00e3o exemplos familiares de emuls\u00f5es formadas por gordura e solu\u00e7\u00e3o aquosa. \u00a8Nosso estudo te\u00f3rico mostra que skyrmions e v\u00f3rtices em uma heteroestrutura magneto-supercondutora podem se auto-organizar de maneira semelhante\u201d, diz Clemente.<\/p>\n<p><span style=\"background-color: inherit; color: inherit; font-family: inherit; font-size: 1rem;\">Materiais supercondutores s\u00e3o capazes de transportar cargas el\u00e9tricas sem qualquer dissipa\u00e7\u00e3o de energia. Isso permite a forma\u00e7\u00e3o de redemoinhos de carga el\u00e9trica. J\u00e1\u00a0\u00a0<\/span>em alguns materiais magn\u00e9ticos, uma propriedade chamada de quiralidade permite a forma\u00e7\u00e3o de v\u00f3rtices de spin, os skyrmions. Ambos s\u00e3o objetos nanom\u00e9tricos, dotados de estabilidade topol\u00f3gica, o que lhes permite se mover atrav\u00e9s do respectivo material hospedeiro como part\u00edculas min\u00fasculas. Recentemente, v\u00f3rtices e skyrmions mostraram interagir uns com os outros em heteroestruturas magneto-supercondutoras.<\/p>\n<p><span style=\"background-color: inherit; color: inherit; font-family: inherit; font-size: 1rem;\">O trabalho mostra que a redu\u00e7\u00e3o da temperatura do sistema leva ao aumento do acoplamento skyrmion-v\u00f3rtice em rela\u00e7\u00e3o \u00e0s outras intera\u00e7\u00f5es presentes em cada subsistema, levando \u00e0 forma\u00e7\u00e3o de got\u00edculas, listras e bolhas dispostas em padr\u00f5es surpreendentemente diversos, modulados por densidade. Esses resultados s\u00e3o de fundamental import\u00e2ncia, porque lan\u00e7am luz sobre a forma\u00e7\u00e3o de padr\u00f5es em escala mesosc\u00f3pica em geral, fornecendo novos insights sobre sistemas de v\u00f3rtice-skyrmion acoplados, que podem ser \u00fateis para spintr\u00f4nica e aplica\u00e7\u00f5es em computa\u00e7\u00e3o qu\u00e2ntica.<\/span><\/p>\n<p><span style=\"background-color: inherit; color: inherit; font-family: inherit; font-size: 1rem;\">A pesquisa foi realizada com apoio financeiro das ag\u00eancias FACEPE, CAPES e CNPq.<\/span><\/p>\n<p><strong>Artigo cient\u00edfico<\/strong><br \/>\nMesoscale Phase Separation of Skyrmion-Vortex Matter in Chiral-Magnet\u2013Superconductor Heterostructures<br \/>\nJos\u00e9 F. Neto e Cl\u00e9cio C. de Souza Silva<br \/>\n<a href=\"https:\/\/doi.org\/10.1103\/PhysRevLett.128.057001\">Phys. Rev. Lett.128, 057001 \u2013 2 de fevereiro 2022<br \/>\n<\/a><a href=\"https:\/\/arxiv.org\/abs\/2104.09619\">ArXiv:2104.09619<\/a><\/p>\n<p><strong>Contato para imprensa<\/strong><br \/>\nIgor Zolnerkevic<br \/>\nAssessor de comunica\u00e7\u00e3o<br \/>\n<span id=\"cloakaea3a6d92c0b296f2c2656f3e15e66ed\"><span id=\"cloak36935a41aed49900fdfcd0ccc07756b0\"><span id=\"cloak1d0784f7944e77e5959d8acb3f4f841c\"><span id=\"cloak260329287650011057a9ea428c5d9667\"><span id=\"cloak70b06bc3011fdfd0bf25446e0b7febc2\"><span id=\"cloak6e91b9d3f8e87e4bc1b0aa101ab4faec\"><span id=\"cloakb4fb8d6e48379e9da5bb6f643ced88ca\"><span id=\"cloak0cafab7efee5686b4649f627df782102\"><span id=\"cloak16ea127c092c7641257ee108a4c02db5\"><span id=\"cloakbfb02956d181edbfde48338c6a26de04\"><span id=\"cloakdd2ffa7fbe353844aa302ac5b56c9d8d\"><span id=\"cloakcd6a2f8ba9c58f7915cd9858e4f6715b\"><span id=\"cloak7881b31ca4ca8c858bca5deda2759490\"><span id=\"cloaka1b234b5c1312839e9cb5149440f93dd\"><span id=\"cloakb46904c0dd26640555168eca35cf687e\"><span id=\"cloakab8a18b4788575a2fb004defede27223\"><span id=\"cloak3f76891238eeb85532c45d02f957727b\"><span id=\"cloak796eff52e85be4a4e9ac2d01e9770468\"><span id=\"cloak6c56a3169aedb00255530523c37f5ec6\"><span id=\"cloakf41b17c1fe162429965acf86a7a78745\"><span id=\"cloak99ca8e9374ab3f18d1379a33a136f095\"><span id=\"cloak32959540776525133bfda097c265956b\"><span id=\"cloak7c02ed46096391dc385965f86dbb9b24\"><span id=\"cloak3f6811053eb0e17d0e2b74919f51301a\"><span id=\"cloak258520f4717194dfc5d747907002c8f9\"><span id=\"cloakbd34a7c5e2bc2056fbee4aa77336bf6e\"><span id=\"cloak8eb44673fab2d827335949b56922b578\"><span id=\"cloak3b09f6b02815b1b1bec4750f39cb0880\"><span id=\"cloak86f5967951bde189a5c4a9a3a69df955\"><span id=\"cloak2b6ead48b2ab51e24efa86744faced80\"><span id=\"cloak18ea95729e7614f61f1c72ba9b73e4e5\"><span id=\"cloaka0031e32f0a8f748392f51856e99c354\"><span id=\"cloak41aa5aa49439d923ae5da3b418049dd8\"><span id=\"cloake1f52b7df2a60539b685b55ddbbd38ca\"><span id=\"cloak9b27e74b5f374c2634667b2bdf86d600\"><span id=\"cloakef6eba96fa77e934b1b62395c9bb3275\"><span id=\"cloakec13b66700c047076a55319d3418e15c\"><span id=\"cloakf08c39a763a17019adcc3a0246597f03\"><span id=\"cloakff810a6b774139f21b0128c4c4c6584f\"><span id=\"cloakccac4f890f002320b759eb1e9b915b4e\"><span id=\"cloak256c6aebf3beef560a35e2f1301b3e23\"><span id=\"cloak8c795a67310efc0ad4167c3825a142e2\"><span id=\"cloak18c514794cbfaf5fb17b5a19f5eb9c6c\"><span id=\"cloakc981a0dfe692b813ecf3df3fc33c9719\"><span id=\"cloakfc3f7bbb68ba01b628e3c62f87f19f42\"><span id=\"cloak5e447598ad3ced17f006dc7adae1d929\"><span id=\"cloak032b5b8e3e78b5de911dc54ad91dc1c6\"><span id=\"cloak5569f52ba4489b1e3247bb53481a89c5\"><span id=\"cloak37271e2e5d0634611c2f1d87444f6379\"><span id=\"cloak388adad93e4991029d4b1efae70fe0e4\"><span id=\"cloake18d291159bd11e2d168a2187db5b219\"><span id=\"cloak6cb97520ba1767ef80772480802f69e1\"><span id=\"cloakabc918bb4b5c60dcfed96ae7c5e0f941\"><span id=\"cloak86c9b871732573cc404d77134a9e55c2\"><span id=\"cloak81a21af2635bbd1ad6ed1ca15ef8cb43\"><span id=\"cloakc8f098ecfaa846e8429490acf30658af\"><span id=\"cloakb3d1ae543001e920759fe12449ab6549\"><a href=\"mailto:comunicacao@sbfisica.org.br\">comunicacao@sbfisica.org.br<\/a><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Simula\u00e7\u00f5es computacionais realizadas pelo f\u00edsico Cl\u00e9cio Clemente, professor da Universidade Federal de Pernambuco (UFPE), e seu aluno de doutorado, Jos\u00e9 Ferreira Neto, mostram como \u00e9 poss\u00edvel formar padr\u00f5es de listras, bolhas e got\u00edculas de tamanho nanom\u00e9trico na superf\u00edcie de materiais h\u00edbridos, compostos por uma camada supercondutora e outra magn\u00e9tica. O controle da forma\u00e7\u00e3o desses padr\u00f5es [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":16665,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[124],"tags":[],"class_list":["post-4900","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-destaque-em-fisica"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/posts\/4900","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/comments?post=4900"}],"version-history":[{"count":3,"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/posts\/4900\/revisions"}],"predecessor-version":[{"id":16676,"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/posts\/4900\/revisions\/16676"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/media\/16665"}],"wp:attachment":[{"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/media?parent=4900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/categories?post=4900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.sbfisica.org.br\/v1\/sbf\/wp-json\/wp\/v2\/tags?post=4900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}