資源描述：
《鋇鐵氧體磁光薄膜的制備與性能研究》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、上海大學(xué)碩士學(xué)位論文鋇鐵氧體磁光薄膜的制備與性能研究姓名：周炯申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：光學(xué)指導(dǎo)教師：馬洪良20060501上海大學(xué)碩=E學(xué)位論文AbstractBariumferritehasattractedla塢ea札emionduetoitsexcellentchemistrystability，aJlti—causticity，hi曲aIlisotropya11dhi曲coercivityrecemyears．ThisfeHDmagneticmateriaIhasbeenwideIyappIiedinthemanufactllring
2、ofmagnetismandmagneto—opticdeVices．Firstly，血ebestmixtureratioofSol·gelmethodprecursorwaspreparedbychangingtheinitialfactorssuchlikedi丘毫rentFe／Bamolratio，molratioRofcitricacidtothenitrate，pHvaluea11dtl】eannealedtemperature．MagneticpowdersofBaFelI501825andBa(CoZr)xFell5—2xO28
3、25serieswerepr印ared．Then，cobaltnitrateandzirconiumnitratewereinnovativelyintroducedaccordingtothesubject．Magnetict11infilmsofBaFeH501825andBaFe2280442se“eswerepreparedbyusingSol—gelspinningandmagneto-opticthinfilmsofBa(CoZr)xFell5．2xol825serieswerepreparedbyPulsedLaserDepos
4、itjon(PLD)technique．Secondly，DSC／TGXRD，AFM，VSMandRamanSpectroscopicAnalysiswereutilizedtostudyonthebariumfbrritepowdeLthinfilmandthedopedsamples．Theresuhsshowedthecorrespondingsurfacemicrostmcture，magneticperformanceandR鋤anspectrum．Finally，putthe“nmmwimopticalrotationasmagn
5、et0—0pticmaterialdirectlybetweenpol捌zerandpolarizationa芏1alyzer，usingextinctionmethodtomeasuremagneto—opticeff毫ct，weobtainedthetransmissionratiocurve，mtationa1191eandmagneto—opticalflgureofmeritbychangingthewaVelengthoflaseLThemainexperimentalresultsasfollows：1、AsthebariLln
6、lferritcthiⅡ丘lm，t}lebestmagneticperforfnanceofBaFe2280442thinfilmwaspreparedundertheannealedtemperatureof1000℃whenpH=8aIldR=1．TheexperimentalresultexhibitedthattheperpendicularsquarenesswasO．60whilethein-plane’swas0．53．Theperpendjcularandin—plane’ssaturationmagnetizationsan
7、dcoercivitieswerel79em“cm3，47640ea11d198emu／cm5，36450e，respectiveIy．上海大學(xué)碩士學(xué)位論文2、AstheBa(Cozr)xFell5—2x01825magneticperfomlancewithdin、erem鋤ountofdoping，山ebestdoping鋤oum、vas0．2．Thein—plane’scoercivitywas10000e，whjleM§(1T)aildMrwas54cm毗mjaIld25em“cm3．耵leperpendiclll盯coercivit
8、ywas9500e，whileMs(1T)andM，was56emu／cm3and27em“cm3．3、Magneto·optice行bctwasmeasllred
