The host absorption band positions were investigated in several host crystals.
初步总结了基质晶体中吸收带位置的规律 ,即氧化物 (CaO∶Eu ,Y2 O3∶Eu ,≈ 2 0 0nm) >多铝酸盐 (BaMgAl1 0 O1 7∶Eu ,≈ 175nm)≥硅酸盐 (Ca2 SiO4 ∶Tb ,160～ 170nm) >硼酸盐 [(Y ,Gd)BO3∶Eu ,15 0～ 160nm]≥钒酸盐 (YVO4 ∶Eu ,≈ 15 5nm)≈正磷酸盐 [(La,Gd)PO4 ∶Eu ,≈ 15 5nm] >五磷酸盐 (TbP5O1 4∶Eu ,≈ 13 5nm) >二磷酸盐 [Sr3(PO4 ) 2 ∶Eu或K3Tb(PO4 ) 2 ∶Eu ,≈ 12 5nm] >氟化物 (LaF3∶Eu或LiYF4 ∶Eu ,≈ 12 0nm)。
Methods: Calcium oxalate (CaOX) crystal matrix was extracted from 10 CaOX stone-formers and 11 normal subjects respectively by inducing CaOX crystallization in supersaturated state.
方法 :用过饱和结晶及溶晶、透析方法分别从 10例草酸钙结石患者和 11例正常人尿中提取与草酸钙晶体结合的尿大分子物 ,即晶体基质 ,并观测晶体基质和结晶前、后尿大分子物对人工尿中一水草酸钙晶体表面 Zeta电位的影响。
In this paper,the properties of the interaction between surface electron and surface optical phonon for a polyatomic crystals in magnetic field is studied.
本文研究磁场中多原子晶体中表面电子和表面光学声子相互作用的性质。