Y - yig 中文 - EN166

yig YIG ＝ yttrium iron garnet 釔鐵...

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Studies showed that process and condition control had critical effect on the preparation of yig phase , and the proper conditions specialized as follows : using ammonia - ammonium nitrate ( nh3 - nh4no3 ) as precipitant , ph scope from 10 to 10 . 5 , using dissolving salt as law materials , dropping their mixed solution into precipitant , precipitation rate at 0 . 8ml / min 研究表明，共沉淀的過程和條件控制對yig的合成具有重要影響。實驗得出共沉淀的合適條件為：以nh _ 3 - nh _ 4no _ 3為緩沖溶液，控制ph范圍為10 . 0 ? 10 . 5 ，采用可溶性鹽為原料配制溶液，滴加到沉淀劑中的共沉淀方式，共沉淀速度為0 . 8ml min左右。
The bragg diffraction efficiency of gows in bismuth - doped yig film is caculated by considering the edge cut - off effect . the obtained theoretical curve is basically agreement with the experimental results . it is shown that the diffraction performance for mo bragg cells can be greatly increased by using an appropriately nonuniform bias field 2 .考慮到邊緣截止效應,論文中計算了靜磁正向體波對導波光的衍射效率,理論結果與實驗符合;從而表明,與均勻場情形相比,適當不均勻場可以大大提高磁光bragg器件的衍射效率。
Cerium - substituted yttrium iron garnets ( cexy3 - xfe5o12 , ce : yig ) , the promising materials for magneto - optical ( mo ) application , have been widely attended for great improvement on faraday rotation due to the substitution of ce3 + ions to y3 + ions . however , studies on synthesis of ce : yig were restrained by two factors : the first was radium of ce3 + ions were much larger than that of y3 + ions , the second was ce3 + ions tended to transfer to ce4 + ions which were more chemically stable 摻鈰釔鐵石榴石( ce - substitutedyttriumirongarnets ，簡稱ce ： yig )中，由于ce ~ ( 3 + )離子對y ~ ( 3 + )離子的取代，將大大提高釔鐵石榴石( yttriumirongarnets ，簡稱yig )磁光材料的法拉第旋轉角和磁光優值，使其能夠廣泛應用于激光和光通信等高技術領域。
Yig and ce : yig precursors were prepared via coprecipitation . by means of improving homogeneity and decreasing synthesis temperature , harmful yfeo3 phase was restrained , the oxidation of ce3 + was under control , and pure phase yig and ce : yig ( x = 0 . 2 ) were obtained 采用共沉淀法合成yig及ce ： yig前驅體，通過提高組分均勻性、降低煅燒溫度等手段，有效地抑制了yfeo _ 3雜相的生成和ce ~ ( 3 + )離子的氧化，合成了單相yig和ce ： yig 。
The results of x - ray photoelectron spectrum ( xps ) demonstrated the ce ions in pure phase ce : yig ( x < 0 . 2 ) were in the state of trivalence . scanning electron microscope ( sem ) analysis showed conglobation of yig and ce : yig particles , whose size were smaller than 1 urn Xps的分析結果顯示單相ce ： yig ( x 0 . 2時)中ce離子是以正三價的狀態存在，這與物相分析結果是一致的。
Vibrating samples magnetometer ( vsm ) testing implied that yig were of ferrimagnetism , and cerium substitution had effects on saturation magnetization ( ms ) , residual magnetization ( mr ) and coercive force ( hc ) Vsm測試結果表明yig屬于亞鐵磁性物質， ce離子的摻雜對飽和磁化強度( ms ) 、剩余磁化強度( mr ) 、矯頑力( hc )都有一定的影響。
The investigation of synthesis , composition and structure analysis , and characterization of magnetic properties of yig and ce : yig would build foundation for the study of ce : yig single crystal in the future Yig和ce ： yig的合成及其成分、結構和性能的分析，為ce ： yig單晶的制備和研究奠定了良好的基礎。
In this paper , yig and ce : yig were prepared via chemical synthesis method , and their composition , structure , magnetic properties were investigated 本文在充分分析本領域國內外研究現狀的基礎上，采用化學合成法制得單相yig和ce ： yig ，并對其組分、結構特征和磁性能進行了分析研究。
Measurement of magnetic properties of yig single crystal magnetic - films 釔鐵石榴石單晶磁性薄膜磁特性的測量方法
The propagation characteristics of msfvws in a double - layered yig waveguide 波導中靜磁體波的傳播特性
Two issues about the yig - tshangs gao - shen system during tubo dynasty 吐蕃告身制度的兩個問題