{"id":53384,"date":"2019-11-30T00:00:00","date_gmt":"2019-11-29T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/uchenye-iz-mfti-sdelali-shag-k-poyavleniyu-novoj-fleshki"},"modified":"2020-02-18T14:01:17","modified_gmt":"2020-02-18T11:01:17","slug":"uchenye-iz-mfti-sdelali-shag-k-poyavleniyu-novoj-fleshki","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/uchenye-iz-mfti-sdelali-shag-k-poyavleniyu-novoj-fleshki","title":{"rendered":"Des scientifiques de l'Institut de MIPT ont fait un pas vers l'apparition d'une nouvelle \u00ab cl\u00e9 USB \u00bb","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>La cr\u00e9ation et le d\u00e9veloppement de dispositifs pour le stockage d'informations num\u00e9riques sans \u00e9nergie se poursuivent depuis des d\u00e9cennies. Une v\u00e9ritable perc\u00e9e a eu lieu il y a un peu moins de 20 ans avec la m\u00e9moire de type NAND, bien que son d\u00e9veloppement ait commenc\u00e9 pr\u00e8s de 20 ans plus t\u00f4t. Aujourd'hui, apr\u00e8s environ un demi-si\u00e8cle de recherches \u00e0 grande \u00e9chelle, de production et d'efforts constants pour am\u00e9liorer la NAND, ce type de m\u00e9moire est proche de l'\u00e9puisement de ses possibilit\u00e9s d'\u00e9volution. Il est n\u00e9cessaire de poser les bases d'un passage \u00e0 un autre type de cellule m\u00e9moire avec de meilleures caract\u00e9ristiques \u00e9nerg\u00e9tiques, de vitesse et autres. \u00c0 long terme, un tel type de m\u00e9moire pourrait \u00eatre la m\u00e9moire ferro\u00e9lectrique de nouvelle g\u00e9n\u00e9ration.<\/p>\n<p><img decoding=\"async\" alt=\"Des scientifiques de l&#039;Institut de MIPT ont fait un pas vers l&#039;apparition d&#039;une nouvelle \u00ab cl\u00e9 USB \u00bb\" src=\"\/wp-content\/uploads\/2019\/11\/decafd3e34f3cbc8fbea7600e3953312.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Les ferro\u00e9lectriques (le terme ferro\u00e9lectriques est utilis\u00e9 dans la litt\u00e9rature \u00e9trang\u00e8re) sont des dielectrics qui conservent une m\u00e9moire de champ \u00e9lectrique appliqu\u00e9 ou, en d'autres termes, se caract\u00e9risent par une polarisation r\u00e9siduelle des charges. La m\u00e9moire sur ferroelectriques n'est pas quelque chose de nouveau. Le d\u00e9fi \u00e9tait de r\u00e9duire l'\u00e9chelle des cellules ferro\u00e9lectriques \u00e0 un niveau nanom\u00e9trique.<\/p>\n<p>Il y a trois ans, des scientifiques \u00e0 l'universit\u00e9 MFTI <noindex><a rel=\"nofollow noopener noreferrer\" href=\"https:\/\/3dnews.ru\/931429\" target=\"_blank\">a \u00e9t\u00e9 pr\u00e9sent\u00e9e<\/a><\/noindex> la technologie de fabrication de mat\u00e9riaux en couches minces pour la m\u00e9moire ferro\u00e9lectrique bas\u00e9e sur l'oxyde d'hafnium (HfO2). Ce n'est pas non plus un mat\u00e9riau unique. Ce di\u00e9lectrique a \u00e9t\u00e9 utilis\u00e9 pendant plusieurs d\u00e9cennies pour la fabrication de transistors \u00e0 grilles m\u00e9talliques dans les processeurs et d'autres logiques num\u00e9riques. Sur la base des films polycristallins alli\u00e9s en oxyde d'hafnium et en zirconium propos\u00e9s \u00e0 MFTI, il a \u00e9t\u00e9 possible de cr\u00e9er des jonctions avec des propri\u00e9t\u00e9s ferro\u00e9lectriques.<\/p>\n<p><center><\/center><\/p>\n<p>Pour que les condensateurs ferro\u00e9lectriques (comme ils commencent \u00e0 \u00eatre appel\u00e9s \u00e0 MFTI) puissent \u00eatre utilis\u00e9s comme cellules de m\u00e9moire, il est n\u00e9cessaire d'atteindre la polarisation maximale possible, ce qui n\u00e9cessite une \u00e9tude d\u00e9taill\u00e9e des processus physiques dans la couche nanoparticulaire. En particulier, il est n\u00e9cessaire de comprendre la distribution du potentiel \u00e9lectrique \u00e0 l'int\u00e9rieur de la couche lors de l'application d'une tension. Jusqu'\u00e0 r\u00e9cemment, les scientifiques pouvaient seulement s'appuyer sur un appareil math\u00e9matique pour d\u00e9crire le ph\u00e9nom\u00e8ne, et ce n'est que maintenant qu'une m\u00e9thode a \u00e9t\u00e9 mise en \u0153uvre, gr\u00e2ce \u00e0 laquelle il a \u00e9t\u00e9 litt\u00e9ralement possible de jeter un coup d'\u0153il \u00e0 l'int\u00e9rieur du mat\u00e9riau pendant le ph\u00e9nom\u00e8ne.<\/p>\n<p><img decoding=\"async\" alt=\"Des scientifiques de l&#039;Institut de MIPT ont fait un pas vers l&#039;apparition d&#039;une nouvelle \u00ab cl\u00e9 USB \u00bb\" src=\"\/wp-content\/uploads\/2019\/11\/4ed4dcfea256213964ca7e9c4978563e.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>La m\u00e9thode propos\u00e9e, qui repose sur la photo\u00e9lectronique \u00e0 rayons X \u00e0 haute \u00e9nergie, ne pouvait \u00eatre r\u00e9alis\u00e9e que sur un \u00e9quipement sp\u00e9cial (acc\u00e9l\u00e9rateurs-synchrotrons). Un tel appareil se trouve \u00e0 Hambourg (Allemagne). Tous les exp\u00e9riences avec les \u00ab condensateurs ferro\u00e9lectriques \u00bb fabriqu\u00e9s \u00e0 l'Institut de physique et de technologie de Moscou (MIPT) ont eu lieu en Allemagne. L'article concernant le travail effectu\u00e9 est publi\u00e9 dans <noindex><a rel=\"nofollow noopener noreferrer\" href=\"https:\/\/pubs.rsc.org\/en\/content\/articlelanding\/2019\/NR\/C9NR05904K#!divAbstract\" target=\"_blank\">Nanoscale<\/a><\/noindex>.<\/p>\n<p>\u00abLes condensateurs ferro\u00e9lectriques con\u00e7us dans notre laboratoire, lorsqu'ils sont utilis\u00e9s pour la fabrication industrielle de cellules de m\u00e9moire non volatile, peuvent garantir 10^10 cycles d'\u00e9criture \u2014 soit cent mille fois plus que ce que permettent les cl\u00e9s USB modernes\u00bb, affirme Andrey Zenkevich, l'un des auteurs de l'\u00e9tude et responsable du laboratoire des mat\u00e9riaux fonctionnels et des dispositifs pour la nano\u00e9lectronique \u00e0 l'Universit\u00e9 de l'\u00c9tat de Moscou. Ainsi, un nouveau pas a \u00e9t\u00e9 franchi vers une nouvelle m\u00e9moire, bien qu'il reste encore \u00e9norm\u00e9ment de travail \u00e0 accomplir.<\/p>\n<p><center><\/p>\n<p><\/center><\/p>\n<p>\t\t\t\t<center><br \/>\n\t\t\t\t\t\t\t\t<\/center><br \/>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/3dnews.ru\/998626\">3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0437\u0434\u0430\u043d\u0438\u0435 \u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u0434\u043b\u044f \u044d\u043d\u0435\u0440\u0433\u043e\u043d\u0435\u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0433\u043e \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0446\u0438\u0444\u0440\u043e\u0432\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432\u0435\u0434\u0451\u0442\u0441\u044f \u043d\u0430 \u043f\u0440\u043e\u0442\u044f\u0436\u0435\u043d\u0438\u0438 \u043c\u043d\u043e\u0433\u0438\u0445 \u0434\u0435\u0441\u044f\u0442\u0438\u043b\u0435\u0442\u0438\u0439. \u041d\u0430\u0441\u0442\u043e\u044f\u0449\u0438\u0439 \u043f\u0440\u043e\u0440\u044b\u0432 \u0447\u0443\u0442\u044c \u043c\u0435\u043d\u044c\u0448\u0435 20 \u043b\u0435\u0442 \u043d\u0430\u0437\u0430\u0434 \u0441\u043e\u0432\u0435\u0440\u0448\u0438\u043b\u0430 \u043f\u0430\u043c\u044f\u0442\u044c \u0442\u0438\u043f\u0430 NAND, \u0445\u043e\u0442\u044f \u0435\u0451 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0441\u0442\u0430\u0440\u0442\u043e\u0432\u0430\u043b\u0430 \u0435\u0449\u0451 \u043b\u0435\u0442 \u043d\u0430 20 \u0440\u0430\u043d\u044c\u0448\u0435. \u0421\u0435\u0433\u043e\u0434\u043d\u044f, \u0441\u043f\u0443\u0441\u0442\u044f \u043f\u0440\u0438\u043c\u0435\u0440\u043d\u043e \u043f\u043e\u043b\u0432\u0435\u043a\u0430 \u043f\u043e\u0441\u043b\u0435 \u043d\u0430\u0447\u0430\u043b\u0430 \u0448\u0438\u0440\u043e\u043a\u043e\u043c\u0430\u0441\u0448\u0442\u0430\u0431\u043d\u044b\u0445 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u0439, \u043d\u0430\u0447\u0430\u043b\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0441\u0442\u0432\u0430 \u0438 \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u044b\u0445 \u0443\u0441\u0438\u043b\u0438\u0439 \u043f\u043e \u0441\u043e\u0432\u0435\u0440\u0448\u0435\u043d\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u0438\u044e NAND, \u044d\u0442\u043e\u0442 \u0442\u0438\u043f \u043f\u0430\u043c\u044f\u0442\u0438 \u0431\u043b\u0438\u0437\u043e\u043a \u043a [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-53384","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043e\u0437\u0434\u0430\u043d\u0438\u0435 \u0438 \u0440\u0430\u0437\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0443\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432 \u0434\u043b\u044f \u044d\u043d\u0435\u0440\u0433\u043e\u043d\u0435\u0437\u0430\u0432\u0438\u0441\u0438\u043c\u043e\u0433\u043e \u0445\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u0446\u0438\u0444\u0440\u043e\u0432\u044b\u0445 \u0434\u0430\u043d\u043d\u044b\u0445 \u0432\u0435\u0434\u0451\u0442\u0441\u044f \u043d\u0430 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