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Electronic parameters and top surface chemical stability of RbPb_2Br_5

机译:RbPb_2Br_5的电子参数和顶表面化学稳定性

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The RbPb_2Br_5 crystal has been grown by Bridgman method. The electronic structure of RbPb_2Br_5 has been measured with XPS for a powder sample. High chemical stability of RbPb_2Br_5 surface is verified by weak intensity of O 1s core level recorded by XPS and structural RHEED measurements. Chemical bonding effects have been observed by the comparative analysis of element core levels and crystal structure of RbPb_2Br_5 and several rubidium- and lead-containing bromides using binding energy difference parameters Δ_(Rb) =(BE Rb 3d- BE Br 3d) and Δ_(Pb) = (BE Pb 4f_(7/2) - BE Br 3d).
机译:RbPb_2Br_5晶体已通过Bridgman方法生长。用XPS测量了粉末样品的RbPb_2Br_5的电子结构。通过XPS记录的O 1s核心水平的弱强度和结构RHEED测量,证明了RbPb_2Br_5表面的高化学稳定性。通过结合能差参数Δ_(Rb)=(BE Rb 3d- BE Br 3d)和Δ_(RbPb_2Br_5和几种含id和铅的溴化物的元素核能级和晶体结构的比较分析,观察到化学键合效果。 Pb)=(BE Pb 4f_(7/2)-BE Br 3d)。

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