{"id":33036,"date":"2019-10-31T21:50:24","date_gmt":"2019-10-31T18:50:24","guid":{"rendered":"https:\/\/prohoster.info\/blog\/skirmiony-mogut-obespechit-mnogourovnevuyu-magnitnuyu-zapis\/"},"modified":"2019-10-31T21:50:24","modified_gmt":"2019-10-31T18:50:24","slug":"skirmiony-mogut-obespechit-mnogourovnevuyu-magnitnuyu-zapis","status":"publish","type":"post","link":"https:\/\/prohoster.info\/da\/blog\/news\/skirmiony-mogut-obespechit-mnogourovnevuyu-magnitnuyu-zapis","title":{"rendered":"Skirminer kan give multilevel magnetisk optagelse","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

De mindste magnetiske vortexstrukturer, skyrmioner (opkaldt efter den britiske teoretiske fysiker Tony Skyrme, der forudsagde denne struktur i 1960'erne), lover at blive grundlaget for fremtidens magnetiske hukommelse. Dette er topologisk stabile magnetiske formationer, der kan v\u00e6kkes i magnetiske film og derefter afl\u00e6ses deres tilstand. Her foreg\u00e5r skrivning og l\u00e6sning ved hj\u00e6lp af spinstr\u00f8mme - ved at overf\u00f8re spinnets vinkelmoment fra elektroner. Det betyder, at skrivning og l\u00e6sning kan udf\u00f8res med ekstremt sm\u00e5 str\u00f8mme. Desuden kr\u00e6ver opretholdelse af magnetvortexen ikke en konstant str\u00f8mforsyning, hvilket f\u00f8rer til en omkostningseffektiv, energiuafh\u00e6ngig hukommelse.<\/p>\n

\"Skirminer<\/p>\n

I de seneste \u00e5r har forskere i Rusland<\/a><\/noindex> og i udlandet<\/a><\/noindex> n\u00f8je studeret adf\u00e6rden af skyrmioner og mener ikke uden grund, at disse strukturer kan hj\u00e6lpe med v\u00e6sentligt at \u00f8ge densiteten af magnetisk optagelse. Desuden har britiske og amerikanske forskere for nylig fundet en m\u00e5de<\/a><\/noindex>, hvorp\u00e5 man kan \u00f8ge optagelsest\u00e6theden med flere gange ved at bruge skyrmioner uden s\u00e6rlige vanskeligheder i form af at reducere diameteren p\u00e5 vortexstrukturerne, hvilket kan f\u00f8re til en hurtigere realisering af den videnskabelige id\u00e9 i et kommercielt produkt.<\/p>\n

\"Skirminer
\n<\/center><\/p>\n

I stedet for den traditionelle bin\u00e6re repr\u00e6sentation, hvor 1 og 0 repr\u00e6senterer henholdsvis tilstedev\u00e6relsen eller frav\u00e6ret af en skyrmion, har forskere fra Birmingham Universitet, Bristol Universitet og University of Colorado Boulder pr\u00e6senteret en kombineret virvelstruktur, de kalder \"skyrmion pose\" (skyrmion bag). Uden tvivl er en \"pose\" med skyrmioner bedre end en enkelt skyrmion. Antallet af skyrmioner i posen kan v\u00e6re vilk\u00e5rligt, hvilket giver det mulighed for at have flere v\u00e6rdier end 0 eller 1. Dette er en direkte vej til at \u00f8ge \u0437\u0430\u043f\u0438\u0441\u043d\u043e\u0439 \u043f\u043b\u043e\u0442\u044b. I en vis forstand kan det sammenlignes med multilagslagring i NAND-flashceller. Det er un\u00f8dvendigt at minde om, hvor hurtigt markedet for flash-lagring er vokset siden starten af masseproduktionen af NAND TLC-hukommelse, som kan skrive tre bit i hver celle.<\/p>\n

\"Skirminer<\/p>\n

Oprettelsen af strukturen \"skyrmion pose\" pr\u00e6senterede forskerne fra England som en abstrakt model og genskabte f\u00e6nomenet i et simulatorprogram. Deres amerikanske kolleger genskabte f\u00e6nomenet praktisk, selvom de brugte flydende krystaller til at aktivere virvelstrukturerne frem for magnetiske strukturer. Flydende krystaller, som det er velkendt, styres af et magnetfelt, hvilket g\u00f8r det muligt at anvende dem til setup-eksperimenter til visualisering af magnetiske f\u00e6nomener. Vi ser frem til overf\u00f8rslen af eksperimenter til magnetiske filmer.<\/p>\n

<\/p>\n

<\/center><\/p>\n

\t\t\t\t


\n\t\t\t\t\t\t\t\t<\/center>
Kilde: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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teoretiske fysiker Tony Skyrme, der forudsagde denne struktur i 1960'erne), lover at blive grundlaget for magnetisk lager.","canonical_url":"https:\/\/prohoster.info\/da\/blog\/news\/skirmiony-mogut-obespechit-mnogourovnevuyu-magnitnuyu-zapis","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"da_DK","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0421\u043a\u0438\u0440\u043c\u0438\u043e\u043d\u044b \u043c\u043e\u0433\u0443\u0442 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0438\u0442\u044c \u043c\u043d\u043e\u0433\u043e\u0443\u0440\u043e\u0432\u043d\u0435\u0432\u0443\u044e 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