Abstract
Methods of laser modification allow us to observe macroscopic quantum phenomena in nanostructured (cluster) materials. The laser synthesis of nanoparticles/nanoclusters with different topologies in semiconductor PbTe samples is performed via direct laser modification of thin films under the action of continuous laser radiation with a wavelength of 1.06 μm and a power density of ~105 W/cm2. Nanoparticles with bimodal distribution in lateral dimensions are obtained on the surfaces of the samples. The electrophysical properties of such structures can be controlled as desired by modifying their topology. Variations in electric properties depending on the particle location density are demonstrated. The results are interpreted based on the existence of quantum coherent processes with tunneling transitions and hopping conductivity. This approach is promising for the fabrication of elements and devices in optoelectronics and photonics based on new physical principles, and of different hybrid optoelectrical schemes.
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Original Russian Text © A.A. Antipov, S.M. Arakelian, S.V. Kutrovskaya, A.O. Kucherik, D.S. Nogtev, A.V. Osipov, V.I. Emel’yanov, S.P. Zimin, 2016, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2016, Vol. 80, No. 7, pp. 896–906.
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Antipov, A.A., Arakelian, S.M., Kutrovskaya, S.V. et al. Electric conductivity of nanocluster PbTe structures with controlled topology: Manifestation of macroscopic quantum effects. Bull. Russ. Acad. Sci. Phys. 80, 818–827 (2016). https://doi.org/10.3103/S1062873816070042
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DOI: https://doi.org/10.3103/S1062873816070042