Abstract
Single crystals of Zn 1− x Mn x Te for x=0.1, 0.25, 0.45, 0.5 and 0.6 were prepared using vertical Bridgman technique. EPR (electron paramagnetic resonance) spectra were recorded at room temperature (303 K) between 0 and 6 kG magnetic field and range of frequency 8.8–9.6 GHz. As the concentration of Mn increases the line width (Δ H) and the number of spins ( N s) were increased. Susceptibility studies were carried out at room temperature in the range of dc magnetic field 0–10 kG using vibrating sample magnetometer (VSM). Non-linear variation in susceptibility as a function of concentration ( x) was observed and was explained on the basis of sp–d and d–d exchange interactions between Mn 2+ ions and ZnTe lattice ions. Both EPR and susceptibility studies confirm the paramagnetic state of Zn 1− x Mn x Te system at RT.
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