Figure 4
From: Giant Rashba effect at the topological surface of PrGe revealing antiferromagnetic spintronics
Temperature dependent MR and XRD measurements on PrGe: (a) Field dependence of the MR along the [010] direction performed at different temperatures. The MR is quantified in percentage by the following relation: MR(T, H) = \({\textstyle \tfrac{[\rho (T,H)-\rho (T,H=0)]}{(\rho (T,H=0))}}\times 100{\rm{ \% }}\). (b) Zoomed MR in the low field region to show the anisotropic MR behavior w.r.t. field direction. Temperature dependent XRD patterns measured with (c) Cu K α laboratory based source and (d) linearly polarized synchrotron source at 13 KeV energy. Inset in (c) shows the rietveld refinement of the X-ray diffraction pattern measured with Cu K α source at 38 K confirming the CrB type crystal structure with Cmcm space group. (e) The intensity of the peak A marked in (d) is plotted as a function of temperature which shows a clear hysteresis in both PM to AFM and AFM to FM phase transitions. The hysterisis in XRD pattern is characteristic of the first order nature of the magnetic transition.
