期刊
SCIENCE
卷 359, 期 6372, 页码 186-190出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aan0593
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资金
- Russian Foundation for Basic Research [16-02-01086]
- Materials Sciences and Engineering Division, Office of Basic Energy Sciences, U.S. Department of Energy
- Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy
In common with many strongly correlated electron systems, intermediate valence compounds are believed to display a crossover from a high-temperature regime of incoherently fluctuating local moments to a low-temperature regime of coherent hybridized bands. We show that inelastic neutron scattering measurements of the dynamic magnetic susceptibility of CePd3 provides a benchmark for ab initio calculations based on dynamical mean field theory. The magnetic response is strongly momentum dependent thanks to the formation of coherent f-electron bands at low temperature, with an amplitude that is strongly enhanced by local particle-hole interactions. The agreement between experiment and theory shows that we have a robust first-principles understanding of the temperature dependence of f-electron coherence.
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