Abstract
The magnetic and transport properties of the Er0.9Tb0.1Mn6Sn6 compound have been investigated in the temperature range of 5–375 K. The compound shows paramagnetism, ferrimagnetism, antiferromagnetism, and reentrant ferrimagnetism with decreasing temperature. Around 60 K, a spin orientation takes place, the easy magnetization direction changing from the c axis to the ab plane. The antiferroferrimagnetic transition is accompanied by a large magnetoresistance (MR) effect of about −5.5% at 200 K in a magnetic field of 50 kOe. It is observed that the sign of MR reverses to positive below 25 K.
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