Time differential perturbed angular correlations of Gd160 implanted into ferromagnetic Gd and of Yb176 into Fe and Ni
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Time differential perturbed angular correlation measurements of Gd160 in ferromagnetic Gd at various temperatures and of Yb176 in Fe and Ni have been performed following Coulomb excitation with a pulsed beam and recoil implantation. Using the theory of combined static magnetic and electric hyperfine interaction the measured time spectra are reasonably well reproduced, the magnetic fields and electric field gradients being in agreement with other works. A phase shift of the Larmor precession, however, points to anomalous hyperfine fields acting on the nuclei in a very short time interval after the beam pulse.
KeywordsHyperfine Interaction Electric Field Gradient Hyperfine Field Angular Correlation Time Spectrum
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