Site occupancy of copper and gadolinium in PbMoO4 single crystals
Site occupancy of copper and gadolinium in PbMoO4 single crystals
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PbMoO4 单晶中铜和钆的位点占用
DOI：
10.1063/1.1661830
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发表时间：
1972
影响因子：
3.2
通讯作者：
G. Azarbayejani
中科院分区：
文献类型：
--
作者：
G. Azarbayejani
在78 ° K和300 °K下，对掺铜钼酸铅（PbMoO 4）单晶（含和不含钆痕量杂质）进行的光学和电子自旋共振测量表明：（i）Gd 3+占据Pb 2+替代位点，（ii）铜在无Gd晶体中作为Cu 2+和Cu+进入晶格，但在Gd掺杂晶体中主要作为Cu+进入晶格，（iii）Cu ~（2+）占据几个不同的位置，没有一个具有Pb ~（2+）或Mo ~（6+）的S4对称性。
Optical and electron‐spin resonance measurements, at 78 and 300 °K, of copper‐doped lead molybdate (PbMoO4) single crystals, with and without gadolinium trace impurity, have shown that: (i) Gd3+ occupies the Pb2+ substitutional site, (ii) copper enters the lattice as both Cu2+ and Cu+ in Gd‐free crystals but mostly as Cu+ in Gd‐doped crystals, and (iii) Cu2+ occupies several distinct sites, none of which has the S4 symmetry of the sites of either Pb2+ or Mo6+.