(1) Lvivska Politekhnika National University, ul. St. Bandera 12, Lviv, 79013, Ukraine;(2) Institute of Applied Problems of Mechanics and Mathematics, National Academy of Sciences of Ukraine, Lviv, 79013, Ukraine
Abstract:
Intercalated crystals of indium and gallium selenide are prepared. It is shown that laser intercalation of nickel into GaSe samples leads to a giant magnetoresistive effect whose magnitude and sign depend on the concentration of the guest component. The giant magnetoresistive effect in the InSe intercalation compounds is considerably weaker and does not exceed 5%. The experimental data obtained are explained in terms of magnetic delocalization (localization) of charge carriers with the participation of states of intercalated magnetically active atoms in the vicinity of the Fermi level.