Cov qauv sib nqus vortex me tshaj plaws, skyrmions (lub npe tom qab British theoretical physicist Tony Skyrme, uas tau kwv yees cov qauv no nyob rau hauv 60s ntawm lub xyoo pua xeem) cog lus tias yuav ua lub hauv paus ntawm lub cim xeeb sib nqus ntawm lub neej yav tom ntej. Cov no yog topologically ruaj khov magnetic formations uas yuav zoo siab nyob rau hauv magnetic films thiab ces lawv lub xeev yuav nyeem tau. Hauv qhov no, kev sau ntawv thiab kev nyeem ntawv tshwm sim siv cov kiv cua tam sim no - los ntawm kev hloov lub angular momentum ntawm electron spin. Qhov no txhais tau hais tias kev sau ntawv thiab kev nyeem ntawv tuaj yeem ua tiav nrog cov dej ntws qis heev. Tsis tas li ntawd, kev txhawb nqa qhov sib nqus vortex tsis tas yuav muaj lub zog hluav taws xob tas li, uas ua rau kev lag luam tsis muaj zog nco.
Ob peb xyoos dhau los, cov kws tshawb fawb hauv thiab rau tab tom kawm zoo txog tus cwj pwm ntawm skyrmions thiab, tsis yog tsis tsim nyog, ntseeg tias cov qauv no yuav pab tau kom muaj qhov sib nqus kaw ntom ntom. Ntxiv mus, tsis ntev los no British thiab Asmeskas cov kws tshawb fawb , yuav ua li cas nws muaj peev xwm ua kom cov ntaub ntawv ceev ceev siv skyrmions yam tsis muaj teeb meem tshwj xeeb hauv daim ntawv ntawm kev txo txoj kab uas hla ntawm cov qauv vortex, uas tuaj yeem ua rau kev siv sai ntawm cov tswv yim tshawb fawb rau hauv cov khoom lag luam.
Hloov chaw ntawm cov ntawv sau binary ib txwm muaj, qhov twg 1 thiab 0 yuav yog skyrmion lossis tsis muaj skyrmion, cov kws tshawb fawb los ntawm University of Birmingham, Bristol thiab University of Colorado Boulder tau nthuav tawm cov qauv sib xyaw ua ke uas lawv hu ua "lub hnab skyrmion." Undoubtedly, "lub hnab" ntawm skyrmions zoo dua li ib lub skyrmion. Tus naj npawb ntawm skyrmions nyob rau hauv lub hnab tuaj yeem yog ib qho, uas yuav tso cai rau nws muab cov nqi ntau dua 0 lossis 1. Qhov no yog txoj hauv kev ncaj qha los ua kom cov ntaub ntawv ceev ceev. Rau qee qhov, qhov no yog piv rau ntau qib kev sau ntawv rau NAND flash cell. Tsis muaj qhov yuav tsum tau ceeb toom ib zaug ntxiv sai npaum li cas lub lag luam flash drive pib nthuav dav tom qab pib tsim ntau ntawm NAND TLC nco nrog kev sau peb lub xov tooj ntawm tes.
Cov kws tshawb fawb los ntawm Askiv tau nthuav tawm cov qauv tsim ntawm "lub hnab ntawm skyrmions" nyob rau hauv daim ntawv ntawm tus qauv paub daws teeb thiab rov tsim dua qhov tshwm sim hauv qhov kev sim simulator. Lawv cov npoj yaig Asmeskas tau tsim tawm qhov tshwm sim hauv kev xyaum, txawm hais tias lawv siv cov kua siv lead ua kua ntau dua li cov qauv sib nqus los tsim cov qauv vortex. Cov kua nplaum yog paub tias yuav tswj tau los ntawm qhov chaw sib nqus, uas tso cai rau lawv siv rau kev sim ua kom pom qhov tshwm sim sib nqus. Peb tab tom tos rau qhov kev sim hloov mus rau cov yeeb yaj kiab sib nqus.
Tau qhov twg los: 3d xov.ru