1) specific 4f electronic concentration
4f电子浓度
2) f electron
4f电子
1.
Based on the principle of symmetry operation, the formulae of crystal field potential of 4f electron with different symmetry are presented.
研究了不同对称环境下,对称操作对4f电子晶场势的限制规律,得到了表示4f电子晶场势的快捷方法,为稀土化合物晶场参数的确定提供了方便。
3) 4f electron transition
4f电子跃迁
1.
The characters of 4f electron transition are analyzed, and the blue and green visible band upconversion luminescence of Er3+ co-doped in ZrF2-SiO2 and the exciting state absorp-tino(ESA) near wave length 404、445、525 and 548nm under 980nm LD excitation are presented.
分析了稀土Er3+中4f电子跃迁的特征,证实了在980 nm泵浦的激发下,ZrF2-SiO2:Er3+ 在404、445 nm和525、548nm附近的蓝/绿可见波段上转换发光过程是激发态吸收(ESA)。
4) Electron density
电子浓度
1.
How to measure argon plasma parameters of dielectric barrier discharge at atmospheric pressure are described, Electron temperature and electron density of argon plasma are measured and calculated from their emission spectrogram.
介绍发射光谱法测量常压介质阻挡氩等离子体的放电参数的方法,通过常压介质阻挡放电氩等离子体的光谱图,测量和计算了等离子体的电子温度和电子浓度。
5) electron concentration
电子浓度
1.
Six bulk metallic galsses series alloys of Zr-Al-Ni-Cu with different compositions were designed and prepared ac- cording to electron concentration constant and atomic size constant criteria.
以等电子浓度和等原子尺寸为判据,设计并制备了6种成分的系列Zr-Al-Ni-Cu块体非晶合金,利用X射线衍射对其中的5种合金在晶化过程中的相转变进行了分析,结果表明,Ni含量较低、Cu含量较高的前两种合金,其晶化相主要以体心四方的Zr2Cu相为主,随着Ni含量升高、Cu含量降低,后三种合金的晶化以体心四方的Zr2Cu相、简单六角Zr6Al2Ni相和面心立方Zr2Ni相等多种晶化相析出为特征。
2.
The criteria that we have developed are respectively related to the conduction electron concentration, termed the e/o-constant criterion, and to the special cluster structure, termed the e/α-variant criterion.
运用等电子浓度和变电子浓度线判据实现了Zr-Al-Co块状非晶合金的成分优化。
3.
A new bulk Zr-Al-Ni-Cu amorphous alloy has been designed and prepared according to the rule of constant valence electron concentrations (e/a), which satisfies e/a=1.
依据非晶态合金与其相关相具有相近的电子浓度的规律,对Zr-Al-Ni-Cu系进行了电子浓度e/a=1。
6) electron concentration (e/a)
电子浓度(e/a)
补充资料：电子-电子双共振
在垂直静磁场H的方向,施加两个微波电磁场:①较弱的微波电磁场，激发电子从能级2向能级3跃迁，不致于饱和；②强的微波电磁场，激发电子从能级1向能级4跃迁，使达到饱和，从而导致能级4的电子转移至能级3，以观察反映2→3跃迁的电子自旋共振信号强度的变化，故称为电子－电子双共振。它与电子-核双共振不同之处是不涉及核的跃迁，并且观察的与电子自旋共振有关的能级和未观察的跃迁能级之间无共享的公共能级。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条