{"id":30849,"date":"2019-10-31T21:37:45","date_gmt":"2019-10-31T18:37:45","guid":{"rendered":"https:\/\/prohoster.info\/blog\/nafarshirovannye-magnitnymi-chastitsami-nanotrubki-mogut-povysit-plotnost-zapisi-na-zhyostkih-diskah\/"},"modified":"2026-02-14T21:16:18","modified_gmt":"2026-02-14T19:16:18","slug":"nafarshirovannye-magnitnymi-chastitsami-nanotrubki-mogut-povysit-plotnost-zapisi-na-zhyostkih-diskah","status":"publish","type":"post","link":"https:\/\/prohoster.info\/fr\/blog\/news\/nafarshirovannye-magnitnymi-chastitsami-nanotrubki-mogut-povysit-plotnost-zapisi-na-zhyostkih-diskah","title":{"rendered":"Des nanotubes charg\u00e9s de particules magn\u00e9tiques peuvent augmenter la densit\u00e9 d'enregistrement sur les disques durs","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Des applications suppl\u00e9mentaires ont \u00e9t\u00e9 trouv\u00e9es pour les nanotubes de carbone. Il y a quelques jours, un article a \u00e9t\u00e9 publi\u00e9 dans la revue Nature Scientific Reports, examinant pour la premi\u00e8re fois la possibilit\u00e9 d'utiliser des nanotubes de carbone multi-parois (Multiwall carbon nanotubes, MWCNT) pour l'enregistrement magn\u00e9tique sur disques durs. Ces structures CNT complexes se pr\u00e9sentent sous forme de \u00ab poup\u00e9es russes \u00bb, de \u00ab rouleaux \u00bb et d'autres constructions. Dans tous les cas, l'objectif est de remplir chaque nanotube de carbone complexe avec des nanoparticules magn\u00e9tiques. Chaque nanoparticule magn\u00e9tique, prise individuellement, ne produira pas d'effet d'enregistrement de donn\u00e9es. La magn\u00e9tisation ne peut \u00eatre modifi\u00e9e que par le tube entier, mais cela sera n\u00e9anmoins plus dense que l'enregistrement magn\u00e9tique. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/fr\/domain\/\"   title=\"domaine\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"4071\">domaine<\/a> plaque magn\u00e9tique HDD ordinaire. Bien plus dense.<\/p>\n<p><img decoding=\"async\" alt=\"Des nanotubes charg\u00e9s de particules magn\u00e9tiques peuvent augmenter la densit\u00e9 d&#039;enregistrement sur les disques durs\" src=\"\/wp-content\/uploads\/2019\/04\/a132de36bd98415906032dee10fc2cf4.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>L'\u00e9tude sur l'enregistrement magn\u00e9tique avec les MWCNT a \u00e9t\u00e9 men\u00e9e par des chercheurs de l'Universit\u00e9 de l'\u00c9tat de l'Alaska (Fairbanks) et d'autres \u00e9tablissements de recherche aux \u00c9tats-Unis et <a href=\"https:\/\/prohoster.info\/fr\/server\/dts-prague\/\"  data-wpil-monitor-id=\"3278\">en R\u00e9publique tch\u00e8que<\/a>L'un des responsables du projet est le scientifique tch\u00e8que Gunther Kletetschka. L'expert souligne que les m\u00e9thodes existantes pour augmenter la densit\u00e9 d'enregistrement sur les disques durs ne r\u00e9pondent plus \u00e0 la rapidit\u00e9 de la croissance des donn\u00e9es. Pour ma\u00eetriser la croissance des donn\u00e9es, la densit\u00e9 de stockage sur les disques durs doit augmenter de 40 % par an, alors qu'elle n'augmente ces derni\u00e8res ann\u00e9es que de 10 \u00e0 15 % par an. L'enregistrement utilisant des tubes magn\u00e9tiques en carbone pourrait r\u00e9pondre aux d\u00e9fis de l'\u00e8re de l'information, mais un \u00e9norme travail de recherche reste \u00e0 accomplir.<\/p>\n<p>L'essence de l'ouverture r\u00e9side dans le fait que des nanotubes de carbone contenant des nanoparticules magn\u00e9tiques ont \u00e9t\u00e9 soumis \u00e0 un champ \u00e9lectromagn\u00e9tique de diff\u00e9rentes amplitudes et fr\u00e9quences. La fabrication de nanotubes de carbone charg\u00e9s de nanoparticules, d'ailleurs, s'est faite par d\u00e9p\u00f4t dans un environnement gazeux - rien de nouveau. Lorsqu'un champ magn\u00e9tique \u00e9tait appliqu\u00e9 \u00e0 une fr\u00e9quence allant jusqu'\u00e0 10 kHz, rien ne se produisait (\u00e0 cause de l'effet de surface de conductivit\u00e9 des nanotubes de carbone), mais avec l'augmentation de la fr\u00e9quence au-del\u00e0 de 10 kHz et la diminution de l'amplitude du champ, un effet de magn\u00e9tisation du nanotube de carbone avec des nanoparticules magn\u00e9tiques apparaissait. Selon les scientifiques, le champ externe correspondait au champ magn\u00e9tique des particules individuelles, permettant d'attribuer au nanotube une magn\u00e9tisation stable dans une direction donn\u00e9e.<\/p>\n<p><img decoding=\"async\" alt=\"Des nanotubes charg\u00e9s de particules magn\u00e9tiques peuvent augmenter la densit\u00e9 d&#039;enregistrement sur les disques durs\" src=\"\/wp-content\/uploads\/2019\/04\/ddcdd625b7306a039ad4d92383b19e02.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>Les scientifiques n'ont pour l'instant aucune proposition sur la mani\u00e8re de cr\u00e9er des m\u00e9canismes d'enregistrement et de lecture pour stocker des donn\u00e9es sur un r\u00e9seau de nanotubes de carbone, mais ils promettent de bien travailler dans cette direction, car avec le temps, la quantit\u00e9 de donn\u00e9es ne va pas diminuer.<\/p>\n<p><center><\/center><\/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 \/>\n<br \/>Source : <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/3dnews.ru\/985154\">3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0423\u0433\u043b\u0435\u0440\u043e\u0434\u043d\u044b\u043c \u043d\u0430\u043d\u043e\u0442\u0440\u0443\u0431\u043a\u0430\u043c \u043d\u0430\u0448\u043b\u0438 \u0435\u0449\u0451 \u043e\u0434\u043d\u043e \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0435. \u041d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0434\u043d\u0435\u0439 \u043d\u0430\u0437\u0430\u0434 \u0432 \u0436\u0443\u0440\u043d\u0430\u043b\u0435 Nature Scientific Reports \u0432\u044b\u0448\u043b\u0430 \u0441\u0442\u0430\u0442\u044c\u044f, \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u0432\u043f\u0435\u0440\u0432\u044b\u0435 \u0440\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0432 \u043c\u0430\u0433\u043d\u0438\u0442\u043d\u043e\u0439 \u0437\u0430\u043f\u0438\u0441\u0438 \u043d\u0430 \u0436\u0451\u0441\u0442\u043a\u0438\u0445 \u0434\u0438\u0441\u043a\u0430\u0445 \u043c\u043d\u043e\u0433\u043e\u0441\u0442\u0435\u043d\u043d\u044b\u0445 \u0443\u0433\u043b\u0435\u0440\u043e\u0434\u043d\u044b\u0445 \u043d\u0430\u043d\u043e\u0442\u0440\u0443\u0431\u043e\u043a (Multiwall carbon nanotubes, MWCNT). \u042d\u0442\u043e \u0440\u0430\u0437\u043d\u043e\u043e\u0431\u0440\u0430\u0437\u043d\u044b\u0435 \u0441\u043b\u043e\u0436\u043d\u044b\u0435 CNT-\u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b \u0432 \u0432\u0438\u0434\u0435 &laquo;\u043c\u0430\u0442\u0440\u0451\u0448\u043a\u0438&raquo;, &laquo;\u0441\u0432\u0451\u0440\u0442\u043a\u043e\u0432&raquo; \u0438 \u0434\u0440\u0443\u0433\u0438\u0445 \u043a\u043e\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0439. \u0417\u0430\u0434\u0430\u0447\u0430 \u0432\u043e \u0432\u0441\u0435\u0445 \u0441\u043b\u0443\u0447\u0430\u044f\u0445 \u0441\u0432\u043e\u0434\u0438\u0442\u0441\u044f \u043a \u043e\u0434\u043d\u043e\u043c\u0443 \u2015 \u043d\u0430\u0444\u0430\u0440\u0448\u0438\u0440\u043e\u0432\u0430\u0442\u044c [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":22833,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-30849","post","type-post","status-publish","format-standard","has-post-thumbnail","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=\"\u0423\u0433\u043b\u0435\u0440\u043e\u0434\u043d\u044b\u043c \u043d\u0430\u043d\u043e\u0442\u0440\u0443\u0431\u043a\u0430\u043c \u043d\u0430\u0448\u043b\u0438 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