Magnetoresistance and metamagnetic transition in La2CuO4+δ with a low Neel temperature
Zakharov A. A., Teplov A. A., Krasnoperov E. P., Tstelin M. B.,Tsygankov A. K., Barilo S. N., Gritskov P. V.
An anomalous increase in the hysteresis in the magnetoresistance and magnetization in the course of a metamagnetic transition has been observed in La2Cu04 + δ single crystals with 7^ ~ 165 К as the temperature was lowered below 20 K. At the same time, the size of the jump in the magnetoresistance was observed to decrease. Both effects are interpreted as manifestations of the reentrant transition from an antiferromagnetic phase.