Fig. 39: NFS on EuNi2Ge2 at room temperature as a function of pressure. EuF3 (left column) and EuS (right column) serve as reference samples. The observed modulations in the time spectra are due to the isomer shift between EuNi2Ge2 and the reference samples (see diagram below the spectra). The isomer shift in the diagram at bottom is given vs. EuF3. 0.67 mm/s <=> 0 = 4.8 · 10-8 eV <=> 11.6 MHz.