Magnetic fluctuations in the magnetically ordering heavy-fermion compounds UCu5 and U2Zn17
Physical Review B, ISSN: 0163-1829, Vol: 36, Issue: 4, Page: 1981-1986
1987
- 34Citations
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Article Description
We report on the first direct observation of magnetic fluctuations in magnetically ordering heavy-fermion U systems above TN. They were measured for UCu5 and U2Zn17 via the quasielastic lines by inelastic neutron scattering. Both compounds behave very similarly. We observe a common broad Lorentzian quasielastic line with width of order QE 10 meV, virtually unaffected by the magnetic phase transition, but also a narrow Gaussian quasielastic line, which we attribute to critical spin fluctuations. We discuss the occurrence of magnetic order in spite of the fast valence-fluctuation rate as in contrast to similar magnetically ordering 4f systems. © 1987 The American Physical Society.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0001045453&origin=inward; http://dx.doi.org/10.1103/physrevb.36.1981; http://www.ncbi.nlm.nih.gov/pubmed/9943042; https://link.aps.org/doi/10.1103/PhysRevB.36.1981; http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevB.36.1981/fulltext; http://link.aps.org/article/10.1103/PhysRevB.36.1981
American Physical Society (APS)
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