Low temperature magnetoresistance properties of Ag2+δSexTe1−x nanocrystalline thin films

► The first report on the magnetic resistance (MR) properties of Ag2+δSexTe1−x NCs thin films. ► The MR effect of NCs thin films is found to be related to the composition as well as annealing conditions. ► Resistance measurement results imply that these materials have positive MR effect under applied magnetic field ► MR of the Ag2.2Se0.2Te0.8 NC thin films shows a maximum value of 68% at 239 K and 8 T.