简介:Energylevels,radiativerates,oscillatorstrengthsandlinestrengthsarereportedfortransitionsamongthelowest97levelsofthe(1s22s22p6)3s23p2,3s23p3d,3s3p3,3p4,3s3p23d,and3s23d2configurationsofRbXXIV.AmulticonfigurationDirac–Fock(MCDF)methodisadoptedforthecalculations.Radiativerates,oscillatorstrengths,andlinestrengthsareprovidedforallelectricdipole(E1),magneticdipole(M1),electricquadrupole(E2),andmagneticquadrupole(M2)transitionsfromthegroundleveltoall97levels,althoughcalculationsareperformedforamuchlargernumberoflevels.Toachievetheaccuracyofthedata,comparisonsareprovidedwithsimilardataobtainedfromtheFlexibleAtomicCode(FAC)andalsowiththeavailabletheoreticalandexperimentalresults.Ourenergylevelsarefoundtobeaccuratetobetterthan1.2%.WavelengthscalculatedarefoundtolieinEUV(extremeultraviolet)andx-rayregions.Additionally,lifetimesforall97levelsareobtainedforthefirsttime.
简介:套住的协调人口(CPT)现象在量精确大小发现了普遍申请。各种各样的图案基于相应于线性Zeeman效果的狭窄的反响的光谱被表明了完成高效。在这篇文章,非线性的Zeeman87在linlin安装的Rb被调查。我们观察重新切开为在一个大磁场的两根磁性的敏感、磁性的感觉迟钝的CPT反响的线的现象。在磁性的敏感的线的重新切开提起一个实际问题到磁强计当另一个在大磁场为应用程序显示出一个好潜力时,在linlin安装工作了。我们基于磁性的感觉迟钝的线的非线性的裂口建议一个图案并且测试它的表演。它与线性的相比提供一个大得多的测量范围,提供为一个大动态范围被比较喜欢的原子磁强计的一种选择。
简介:Weperformfirst-principlecalculationsforthestudyoftheorthorhombicRb2Cd2(SO4)3structure.Electronicenergybands,totalandpartialdensitiesofstatesarereportedandanalysed.Itisfoundthatoxygenatomic2pelectronsstronglyhybridizewithRb/orCd4dandS2pstates,resultingintwo-typeionicgroupswithweakcouplings.Itisshownthatmacroscopicdomainwallsoriginatefromsuchweak-couplingionicgroups,arisingatthecellboundaries.Theasymmetriccationbonds(Rb-OandCd-O)andthesubsequentrotationsoftheS04tetrahedracanleadtothedrivingforceoftheferroelectricbehaviour.Thepredictedpyroelectriccurrenteffectsareobservedexperimentallyintheferroelectricphase.
简介:Thispaperhasdevelopedandcharacterizedamethodtoproduceavelocity-tunable87Rbcoldatomicsourceforatomicinterferometryapplication.Usingahighspeedfluorescenceimagingtechnology,itreportsthatthedynamicprocessoftheatomicsourceformationisobservedandthesourceperformancesincludingthefluxandtheinitialvelocityarecharacterized.Atunableatomicsourcewiththeinitialvelocityof1.4~2.6m/sandtheatomicsourcefluxof2×108~6×109atoms/shasbeenobtainedwiththebuiltexperimentalsetup.