Wednesday, March 4, 2015
Abstract-Terahertz probes of magnetic field induced spin reorientation in YFeO3 single crystal
Using the we demonstrate the spin reorientation of a canted YFeO by evaluating the temperature and dependence of frequency and amplitude for the quasi-ferromagnetic and quasi-antiferromagnetic modes a deeper insight into the dynamics of spin reorientation in rare-earth orthoferrites is established. Due to the absence of -electrons in Y ion, the spin reorientation of Fe sublattices can only be induced by the applied rather than temperature. In agreement with the theoretical predication, the frequency of mode decreases with In addition, an obvious step of spin reorientation phase transition occurs with a relatively large applied of 4 T. By comparison with the family members of RFeO (R = Y3+ or our results suggest that the chosen of R would tailor the dynamical rotation properties of Fe leading to the designable spin switching in the orthoferrite systems.