Science Advances

Supplementary Materials

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  • Fig. S1. A neutron powder diffraction profile of the δ-Pu sample enclosed in a double-wall Al can used for the experiments reported here is shown.
  • Fig. S2. Visual method of adjusting the analytically calculated self-shielding factor SSFPu for δ-Pu.
  • Fig. S3. Analytical method of adjusting the analytically calculated self-shielding factor SSFPu for δ-Pu.
  • Fig. S4. The dynamic magnetic susceptibility of δ-Pu measured via neutron spectroscopy for incident neutron energies of Ei = 500 meV (A) and 250 meV (B), respectively.
  • Fig. S5. Theoretical fluctuating magnetic moment of δ-Pu defined in eq. S16.
  • Fig. S6. Summary of the main results of our DMFT calculation.
  • Table S1. Isotopics and coherent and absorption neutron cross sections of the δ-Pu sample used for the experiment described in this report.
  • Table S2. Self-shielding factors SSF for the δ-Pu and Th samples for both used incident energies Ei = 250 and 500 meV obtained via eqs. S3 to S6.
  • Table S3. Results of the sum rule analysis for both the fluctuating magnetic moment 〈μz〉 (eq. S13) and the static susceptibility x'(0) (eq. S14) are provided for incident energies Ei = 250 and 500 meV.
  • References (35–45)

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