简介:StudyofNeutron-richHgIsotopes¥ZhangLi;ZhaoJinhua;WangJichengandZhengJiwenTheneutron-richHgisotopes205-208Hgwereproducedin...
简介:StructurePropertiesofLightNeutron-richNuclei¥GuJinnanandZhangChanghuaIntileframeworkoflarge-basisshellmodel[1],thestruct...
简介:γ Decay of New Neutron-rich Nuclei 175ErγDecayofNewNeutron-richNuclei175Er¥ZhangXueqian;YuanShuanggui;YangWeifan;YuXian;...
简介:Primary Search for New Neutron-rich Nuclide 209HgPrimarySearchforNewNeutron-richNuclide209Hg¥ZhangLi;ZhaoJinhua;ZhengJiw...
简介:Anewcompositioncontentquaternary-alloy-basedphasechangethinfilm,Sb-richAglnSbTe,hasbeenpreparedbyDC-magnetronsputteringonaK9glasssubstrate.Afterthefilmhasbeensubsequentlyannealedat200℃for30min,itbecomesacrystallinethinfilm.Thediffractionpeakofantimony(Sb)areobservedbyshallow(0.5degree)x-raydiffractioninthequaternaryalloythinfilm.Theanalysesofthemeasurementfromdifferentialscanningcalorimetry(DSC)showthatthecrystallizationtemperatureofthephasechangethinfilmisabout190℃andincreaseswiththeheatingrate.ByKissingerplot,theactivationenergyforcrystallizationisdeterminedtobe3.05eV.Thereflectivity,refractiveindexandextinctioncoefficientofthecrystallineandamorphousphasechangethinfilmsarepresented.Theopticalabsorptioncoefficientofthephasechangethinfilmsasafunctionofphotonenergyisobtainedfromtheextinctioncoefficient.Theopticalbandgapsoftheamorphousandcrystallizationphasechangethinfilmsare0.265eVand1.127eV,respectively.
简介:Highspinstatesintheneutron-rich^108Runucleushavebeenstudiedthroughmeasuringpromptγ-raycoincidencesfollowingthespontaneousfissionof^252CfwiththeGammaspheredetectorarray.Theyrastbandhasbeenconfirmed.Theone-phononγ-vibrationalbandandthetwo-quasiparticlebandbasedonthe5^-levelhavebeenextendedupto13^+and15^-,respectively.Inaddition,twolevelsat1644.8keVand1826.5keVexcitationenergiesarenewlyidentifiedandproposedtobethemembersofatwo-phononγ-vibrationalband.Itisshownthatthe^108Runucleushastriaxialdeformationwithparametersβ2~0.29andγ=-22°fromthetotalRouthiansurfacecalculations.Theobservedbandcrossingintheyrastbandisduetothealignmentofapairofh11/2neutronsaccordingtothecrankedshellmodelcalculations.Thepossibleconfigurationforthetwo-quasiparticlebandhasbeendiscussed.
简介:在哪儿在核物理学研究触发了一个新时代,在铁以外的重元素什么时候,并且怎么充实我们的宇宙的待研究的问题。所有相关核物理学输入,很充满中子的核种的团是为在铁以外揭示重元素的起源的关键数量。尽管这个性质的精确决心是大挑战,庞大的进步在最近的十年被取得了,并且它显著地作出贡献到原子结构和天体物理学的nucleosynthesis研究。在这评论,我们首先调查我们原子集体表面的现在的知识,强调在r过程计算的原子集体精确的重要性。我们然后与一些选择例子在原子集体测量的各种各样的方法讨论最近的进步。为每个方法,我们集中于最近的突破并且讨论改进称r过程核种的可能的方法。
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简介:我们在Mn50Ni40SnSbx(x=1,2,3,和4)合金。所有准备样品在房间温度与空间组一起展出B2类型结构。Sb的替换增加原子价电子集中并且减少联合起来的房间体积。作为结果,当x增加,magnetostructural转变向更高的温度很快变。在在不同磁场变化下面的磁性的熵的变化在这转变附近被探索。等温的磁化曲线展出典型metamagnetic行为,显示magnetostructural转变能被一个磁场导致。悦耳的martensitic转变和磁性的熵变化建议那Mn50Ni40SnSbx合金是应用在的吸引人的候选人固态制冷。