Nuclear magnetic resonance studies of the normal state of the heavy fermion system UBe13

9Be nuclear magnetic resonance measurements are reported for the normal state of the actinide intermetallic compound UBe13. The motivation for this work was to examine the enhancement effect of the heavy fermions in this material in terms of their effect on the dynamic and static parts of the local magnetic field provided by the heavy fermions. The NMR experiments were done over a wide range of temperature and magnetic field. In the normal state of UBe13, measurements in the temperature range extending from 0.8 K to room temperature were carried out, while a magnetic field of up to 70 kOe was applied. The measured 9Be Knight shift in the normal state of UBe13 is large, strongly temperature-dependent and highly anisotropic. The 9Be spin-lattice relaxation rate in UBe13 shows that the noise power of 9Be local-field fluctuation due to the presence of heavy electrons is three orders of magnitude larger than the value observed in the corresponding non-5f intermetallic compounds ThBe13. The magnetic field dependence of 9Be spin-lattice relaxation rate was also measured in the superconducting state to understand the role of undetermined paramagnetic impurities in the heavy-fermion system