Magnetic behaviour of the semimagnetic semiconductor Zn1-xMnxIn2Te4

The magnetic behavior of the Zn1-xMnxIn2Te4 compounds with 0.1 less than or equal to x less than or equal to 0.9 has been studied in the temperature r ange 1.8 to 300 K by means of electron paramagnetic resonance (EPR). We hav e found that the peak to peak linewidth decreases when the Mn concentration increases and when the temperature increases. The signal has a Lorentzian shape in the high temperature region and is slightly asymmetrically broaden ed when the temperature goes down to 10 K except for x = 0.1. The observed magnetic behavior is intimately related with the exchange between magnetic ions. The magnetic properties were studied by an ac susceptometer for the l ow temperature range (1.8 to 80 K).