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dc.contributor.author蔡宏智en_US
dc.contributor.authorHung-Chi Tsaien_US
dc.contributor.author謝漢萍en_US
dc.contributor.authorDr. Han-Ping D. Shiehen_US
dc.date.accessioned2014-12-12T02:13:14Z-
dc.date.available2014-12-12T02:13:14Z-
dc.date.issued1994en_US
dc.identifier.urihttp://140.113.39.130/cdrfb3/record/nctu/#NT830123035en_US
dc.identifier.urihttp://hdl.handle.net/11536/58891-
dc.description.abstract「長期穩定性」是記錄媒體必須具備的條件之一。在磁光碟片的記錄層材 料中,DyFeCo薄膜已被證實比傳統的記錄媒體TbFeCo,能在較低的外加磁 場(bias fild)及雷射功率,達到良好的記錄效果。本論文的目的是以 Dy- FeCo薄膜與目前的磁光記錄媒體TbFeCo,做長期穩定性的比較,兩種 磁光薄膜劣化條件為85℃,85﹪相對濕度的高溫高濕之下進行加速劣化測 試。比較兩種磁光薄膜的各項性質隨時間的變化情形,可發現兩種磁光薄 膜在加速劣化的測試環境之下,(a)矯頑磁力、克爾旋轉角與磁化量,(b) 表面特性及(c)CNR皆有類似的變化;且在SiN良好的保護下,兩種磁光薄 膜均具有相當的穩定性。此結果顯示DyFeCo與TbFeCo兩種磁光薄膜的長期 穩定性相當類似,相信DyFeCo薄膜製成碟片後,也能像傳統的記錄媒體 TbFeCo一般供長期使用,成為更先進的記錄媒體。 "Long term stability" is one of the most important requirements in the recording media. It was found that DyFeCo magneto- optical (MO) thin film has almost the same recording properties as TbFe- Co, but at lower bias field and laser power. We compare the long term stabilities of DyFeCo and TbFeCo by acclerating test in the environment of 85℃ and 85﹪ reletive humidity (RH). We find th- at (a) coercivities, Kerr angles and magnetizations, (b) surface properties, and (c) CNR of these two thin films are almost the s- ame in the accelerated testing. Both of the two MO thin films are very stable under the protecting of the dielectric layer- SiN. T- he above experimental results indicate that a MO disk with DyFeCo active layer has a similar long term stability as TbFeCo thin fi- lm and therefore has the potential to become an advanced recordi- ng medium.zh_TW
dc.language.isozh_TWen_US
dc.subject磁光薄膜;長期穩定性;矯頑磁力;克爾旋轉角;磁化量zh_TW
dc.subjectMagneto-Optical Film;Long term Stability;Coercivity;Kerr Angle; Magnetizationen_US
dc.title(Dy,Tb)FeCo 磁光薄膜的長期穩定性量測zh_TW
dc.titleLong Term Stability Study of (Dy,Tb)FeCo Magneto-Optical Record- ing Filmen_US
dc.typeThesisen_US
dc.contributor.department光電工程學系zh_TW
Appears in Collections:Thesis