Surface physics, thin films

Topological dendrite structures with regulated micro-nanomodification with controlled electrophysical characteristics in experiment with laser ablation from a hard surface of stainless steel

D. D. Tumarkina, A. F. Lelekova, K. S. Khor'kov, D. N. Bukharov, S. M. Arakelian

Vladimir State University

Abstract: Topological dendritic structures with controlled micro-nanomodification on the surface, obtained in different schemes of laser experiment with stainless steel AISI 304, are investigated. The synthesis of such structures and the methodology for measuring their characteristics in certain configurations on the surface of steels with a high-entropy composition are considered. The measurements were conducted using scanning tunneling/atomic force microscopy and Raman spectroscopy. Model calculations of fractal dimensions have been performed for the obtained heterogeneous topological surface objects in samples with a controlled dendritic fractal structure. The paper discusses the electrophysics of such structures and their possible applications based on the results of the conducted research. The paper presents the results of experiments on measuring the dependencies for the current-voltage characteristics of the micro-nanostructured surface of AISI 304 stainless steel samples modified by laser exposure.

Keywords: thin films, solid surface, laser exposure, micro-nanostructures, dendrite configurations, fractal dimension, high-entropy compounds with controlled topology, phase transformations.

Received: 01.06.2025
Revised: 06.08.2025
Accepted: 19.08.2025

DOI: 10.61011/FTT.2025.09.61626.153-25

Bibliographic databases:

•