Micromorphology and fractal parameters of growth surfaces of single crystals of paratellurite
S.V. Molchanov, S.A. Tretyakov, I.A. Kaplunov, A.M. Ivanov, V.S. Stepanov, V.P. Tsvetkov, I.V. Tsvetkov, S.A. Mikheev
Tver State University
DOI: 10.26456/pcascnn/2023.15.787
Original article
Abstract: This paper presents studies of the influence of growth conditions of paratellurite single crystals on the side surface of grown boules and the possibility of assessing the quality of crystals based on the values and dynamics of the roughness parameters and fractal parameters of juvenile surfaces. Two single crystals were grown under similar technological conditions and differing from each other in structural quality. Their lateral surfaces were studied using the optical interference profilometer NanoMap 1000WLI employing SPIP and Gwyddion softwares. As a result, roughness parameters of profiles, and fractal parameters of crystal surfaces along the growth direction were obtained,. It was concluded that under conditions corresponding to the formation of stable flows in the melt, the values of the surface roughness over the entire length of the crystal is less than 5 μm, and the fractal energy parameter can be used as a marker of the quality and homogeneity of crystals.
Keywords: paratellurite single crystals, untreated crystal surface, roughness parameters, fractal parameters
- Sergey V. Molchanov – Junior Researcher, Management of Scientific Research, Tver State University
- Sergey A. Tretyakov – Ph. D., Docent, Applied Physics Department, Tver State University
- Ivan A. Kaplunov – Dr. Sc., Professor, Head of the Applied Physics Department, Tver State University
- Alexey M. Ivanov – Lead Programmer, Applied Physics Department, Tver State University
- Valeriy S. Stepanov – Junior Researcher, Management of Scientific Research, Tver State University
- Victor P. Tsvetkov – Dr. Sc., Head of the Department of General Mathematics and Mathematical Physics, Tver State University
- Ilya V. Tsvetkov – Dr. Sc., Professor, Department of Enterprise Economics and Management, Tver State University
- Sergey A. Mikheev – Ph. D., Docent, Department of General Mathematics and Mathematical Physics, Tver State University
Reference:
Molchanov, S.V. Micromorphology and fractal parameters of growth surfaces of single crystals of paratellurite / S.V. Molchanov, S.A. Tretyakov, I.A. Kaplunov, A.M. Ivanov, V.S. Stepanov, V.P. Tsvetkov, I.V. Tsvetkov, S.A. Mikheev // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2023. — I. 15. — P. 787-798. DOI: 10.26456/pcascnn/2023.15.787. (In Russian).
Full article (in Russian): download PDF file
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