Abstract
High-resolution raster electron microscopy, X-ray phase analysis, and atomic force microscopy were used to study the phase composition and morphological features of Pb5Ge3O11 surface nanostructure formed as a result of thermostimulated surface segregation. It was experimentally established that, at some temperature, oriented Pb3GeO5 nanoparticles of 10–50 nm in size appeared. A probable mechanism of this phenomenon (which can be attributed to a new type of epitaxy implemented by selective intrinsic mass transfer to the surface) was discussed.
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