Crystal Structure, Phase Transition and Optical Properties of v-PrBO3
Source abstract
Abstract
采用高温固相合成法分别在1200和1500℃合成了λ-PrBO 3 和ν-PrBO 3 样品, 并通过单晶X射线衍射确定了ν-PrBO3的晶体结构。结果表明该结构为三斜晶系, 空间群为P1, 晶胞参数为 a = 0.6302 (4) nm, b = 0.6521 (4) nm, c = 0.6525 (4) nm, α = 94.312(7) °, β = 107.335(7) °, γ = 106.455(7) °, V = 0.2417(2) nm 3 , Z = 4。同时研究了从λ-PrBO 3 到ν-PrBO 3 的相变过程, 并从漫反射光谱得出λ-PrBO3和?-PrBO3的光学带隙均为4.96 eV。在X射线和紫外激发下,均未观测到λ-PrBO3和?-PrBO3样品在紫外可见波长范围内的Pr 3+ 特征发光。
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Crystal Structures and Properties · High-pressure geophysics and materials · Advanced Condensed Matter Physics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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