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@Article{ZiminGANJSAR:2019:PlSuNa,
               author = "Zimin, S. P. and Gorlachev, E. S. and Amirov, I. I. and Naumov, V. 
                         V. and Juskenas, R. and Skapas, M. and Abramof, Eduardo and Rappl, 
                         Paulo Henrique de Oliveira",
          affiliation = "{Yaroslavl State University} and {Russian Academy of Sciences} and 
                         {Russian Academy of Sciences} and {Centre for Physical Sciences 
                         and Technology} and {Centre for Physical Sciences and Technology} 
                         and {Centre for Physical Sciences and Technology} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)}",
                title = "Plasma-assisted surface nanostructuring of epitaxial 
                         Pb1\−xSnxTe (0<= x<=1) films",
              journal = "Semiconductor Science and Technology",
                 year = "2019",
               volume = "34",
                pages = "095001",
             keywords = "surface nanostructuring, plasma treatment, lead tin telluride, 
                         vapour-liquid-solid mechanism, micromasking mechanism, 
                         quasi-spherical droplets.",
             abstract = "In this work, we report a novel approach to the surface 
                         nanostructuring of lead tin telluride films using inductively 
                         coupled argon plasma treatment with the average ion energy of 200 
                         eV and the duration of 2060 s. The nanostructuring was carried out 
                         on the plasma treated surface of epitaxial single-crystal 
                         Pb1\−xSnxTe films grown on BaF2(111) substrates using 
                         molecular beam epitaxy. The plasma treatment of the surface of the 
                         Pb1\−xSnxTe films with the low and medium Sn content 
                         (x\=\00.6) resulted in the formation of the 
                         arrays of capped conical nanostructures with the height up to 420 
                         nm, depending on the Sn content and treatment duration, and the 
                         surface density of \∼109 cm\−2. The plasma treatment 
                         of the surface of the films with the high Sn content 
                         (x\=\0.81) yielded the formation of a second 
                         group of flat nanostructures without caps, which had necklace-like 
                         rings consisting of multiple nanodroplets around their rims. Using 
                         transmission electron microscopy, we show that the quasi-spherical 
                         droplet caps of the nanostructures consist of Pb wrapped in Sn. We 
                         explain the physical mechanism of the observed plasma-assisted 
                         nanostructure self-formation in the framework of the multi-stage 
                         model including physical sputtering, redeposition, 
                         vapour-liquid-solid mechanism and micromasking mechanism.",
                  doi = "10.1088/1361-6641/ab2e9b",
                  url = "http://dx.doi.org/10.1088/1361-6641/ab2e9b",
                 issn = "0268-1242",
             language = "en",
           targetfile = "Zimin_2019_Semicond._Sci._Technol._34_095001.pdf",
        urlaccessdate = "17 abr. 2021"
}


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