Abstract
The magnetoresistance and magnetocaloric properties of the Pr0.1Gd0.9Mn2Ge2 compound have been investigated by resistance and magnetization measurements. This compound shows ferrimagnetism, antiferromagnetism, ferromagnetism, antiferromagnetism and paramagnetism with increasing temperature. The metamagnetic transition occurs from antiferromagnetism to ferrimagnetism and ferromagnetism at around TCR and TNinter, respectively. Magnetoresistance is observed at magnetic transition temperature, as expected. Normal and inverse magnetocaloric effects are observed at magnetic transition temperatures. Magnetic entropy changes are calculated from isothermal magnetization curves using Maxwell's relation and Landau theory. Both the calculated magnetic entropy changes are in good agreement.
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