Hauv cov teb tshiab xws li kev tsim khoom semiconductor thiab kev ntsuas quantum precision, uas muaj kev nkag siab zoo rau qhov chaw electromagnetic, txawm tias qhov cuam tshuam electromagnetic me me hauv cov khoom siv tuaj yeem ua rau muaj kev hloov pauv precision, cuam tshuam rau qhov zoo ntawm cov khoom kawg thiab cov txiaj ntsig sim. Raws li ib qho tseem ceeb uas txhawb nqa cov khoom siv precision, cov yam ntxwv magnetic susceptibility ntawm granite precision platforms tau dhau los ua ib qho tseem ceeb hauv kev ua kom ruaj khov ntawm cov khoom siv. Kev tshawb nrhiav tob tob ntawm kev ua tau zoo magnetic susceptibility ntawm granite precision platforms yog qhov zoo rau kev nkag siab lawv tus nqi tsis hloov pauv hauv kev tsim khoom siab thiab kev tshawb fawb scientific scenarios. Granite feem ntau yog tsim los ntawm cov zaub mov xws li quartz, feldspar thiab mica. Cov qauv hluav taws xob ntawm cov pob zeb no txiav txim siab cov yam ntxwv magnetic susceptibility ntawm granite. Los ntawm qhov pom ntawm microscopic, hauv cov zaub mov xws li quartz (SiO_2) thiab feldspar (xws li potassium feldspar (KAlSi_3O_8)), electrons feem ntau muaj nyob rau hauv khub hauv covalent lossis ionic bonds. Raws li txoj cai Pauli tsis suav nrog hauv quantum mechanics, cov kev taw qhia ntawm cov electrons sib txuas yog qhov sib txawv, thiab lawv cov magnetic moments tshem tawm ib leeg, ua rau tag nrho cov lus teb ntawm cov minerals rau sab nraud magnetic teb tsis muaj zog heev. Yog li ntawd, granite yog ib qho khoom siv diamagnetic ib txwm muaj nrog qhov tsis tshua muaj magnetic susceptibility, feem ntau nyob ib puag ncig qhov kev txiav txim ntawm \(-10^{-5}\), uas yuav luag tsis quav ntsej. Piv nrog cov khoom siv hlau, qhov zoo ntawm magnetic susceptibility ntawm granite yog qhov tseem ceeb heev. Feem ntau cov khoom siv hlau xws li hlau yog ferromagnetic lossis paramagnetic tshuaj, nrog rau ntau tus unpaired electrons sab hauv. Lub spin magnetic moments ntawm cov electrons no tuaj yeem sai Orient thiab sib dhos raws li qhov kev ua ntawm sab nraud magnetic teb, ua rau muaj magnetic susceptibility ntawm cov khoom siv hlau siab li qhov kev txiav txim ntawm \(10^2-10^6\). Thaum muaj cov teeb liab electromagnetic los ntawm sab nraud, cov khoom siv hlau yuav sib txuas nrog lub magnetic teb, tsim cov electromagnetic eddy currents thiab hysteresis losses, uas ua rau cuam tshuam rau kev ua haujlwm ib txwm ntawm cov khoom siv hluav taws xob hauv cov khoom siv. Cov platforms granite precision, nrog lawv qhov kev cuam tshuam magnetic qis heev, tsis tshua muaj kev sib cuam tshuam nrog cov teb magnetic sab nraud, ua kom tsis txhob muaj kev cuam tshuam electromagnetic thiab tsim kom muaj ib puag ncig ua haujlwm ruaj khov rau cov khoom siv precision. Hauv kev siv ua haujlwm, qhov kev cuam tshuam magnetic qis ntawm cov platforms granite precision ua lub luag haujlwm tseem ceeb. Hauv cov txheej txheem computer quantum, cov qubits superconducting muaj kev cuam tshuam loj heev rau lub suab nrov electromagnetic. Txawm tias qhov kev hloov pauv ntawm lub teb magnetic ntawm 1nT (nanotesla) theem yuav ua rau poob ntawm kev sib raug zoo ntawm cov qubits, ua rau muaj kev ua yuam kev suav. Tom qab ib pab pawg tshawb fawb hloov lub platform sim nrog cov khoom siv granite, lub suab nrov magnetic tom qab nyob ib puag ncig cov khoom siv tau poob qis los ntawm 5nT mus rau qis dua 0.1nT. Lub sijhawm sib raug zoo ntawm cov qubits tau ntev los ntawm peb zaug, thiab qhov yuam kev ua haujlwm tau txo qis los ntawm 80%, ua rau muaj kev ruaj khov thiab qhov tseeb ntawm kev suav quantum. Hauv thaj chaw ntawm cov khoom siv semiconductor lithography, qhov chaw ultraviolet lub teeb ci ntsa iab thiab cov sensors precision thaum lub sijhawm lithography muaj cov kev cai nruj rau ib puag ncig electromagnetic. Tom qab siv lub granite precision platform, cov khoom siv tau zoo tiv taus kev cuam tshuam electromagnetic sab nraud, thiab qhov tseeb ntawm qhov chaw tau txhim kho los ntawm ± 10nm mus rau ± 3nm, muab kev lees paub zoo rau kev tsim khoom ruaj khov ntawm cov txheej txheem siab heev ntawm 7nm thiab hauv qab no. Tsis tas li ntawd, hauv cov tshuab microscopes electron siab, cov khoom siv nuclear magnetic resonance imaging thiab lwm yam twj paj nruag uas rhiab rau electromagnetic ib puag ncig, granite precision platforms kuj ua kom ntseeg tau tias cov khoom siv tuaj yeem ua tau zoo tshaj plaws vim lawv cov yam ntxwv tsis tshua muaj magnetic. Qhov ze li ntawm xoom magnetic susceptibility ntawm granite precision platforms ua rau lawv yog qhov kev xaiv zoo tshaj plaws rau cov khoom siv precision los tiv taus kev cuam tshuam electromagnetic. Raws li thev naus laus zis nce qib mus rau qhov tseeb dua thiab cov kab ke nyuaj dua, cov kev cai rau kev sib raug zoo electromagnetic ntawm cov khoom siv tau dhau los ua nruj dua. Granite precision platforms, nrog rau qhov zoo tshwj xeeb no, yuav tsum txuas ntxiv ua lub luag haujlwm tseem ceeb hauv kev tsim khoom siab thiab kev tshawb fawb txog kev tshawb fawb, pab kev lag luam tas li tawg los ntawm kev tsis sib haum xeeb thiab ncav cuag qhov siab tshiab.
Lub sijhawm tshaj tawm: Tsib Hlis-14-2025