Spontaneous and field induced spin reorientation transitions of DyFe11Ti single crystal

Abstract

The spontaneous and field induced spin reorientation transitions (SRT) have been studied in the DyFe11Ti compound, using different experimental techniques as: ac magnetic susceptibility, magnetization, and electric resistivity. From these measurements, the thermal dependence of the easy magnetization direction has been undoubtedly determined from 4.2 to 300 K, range in which two SRT take place (at ∼69 and 187 K). We have checked the continuous character of the SRT at 187 K. On the other hand, it has been established that the SRT at 69 K under an applied magnetic field (H≥2 kOe) becomes of first order.