Experimental and theoretical study of the effect of bombardment with Ar+ ions on the spectrum of valence electrons of a Si (111) single crystalYokub Ergashov, Boltaxodja Umirzakov, Nebodir Nurmatov and Golib OtamurodovE3S Web Conf., 288 (2021) 01013DOI: https://doi.org/10.1051/e3sconf/202128801013