O
O. O. Bernal
Researcher at University of California, Riverside
Publications - 6
Citations - 367
O. O. Bernal is an academic researcher from University of California, Riverside. The author has contributed to research in topics: Kondo effect & Magnetic susceptibility. The author has an hindex of 4, co-authored 6 publications receiving 359 citations.
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Journal ArticleDOI
Copper NMR and Thermodynamics of UCu 5 − x Pd x : Evidence for Kondo Disorder
TL;DR: In this article, a simple phenomenological model with a distribution of Kondo temperatures fits the field and the temperature dependence of the susceptibility, and then describes the copper NMR linewidth semiquantitatively with no further adjustable parameters.
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Non fermi liquid behavior in strongly correlated f-electron materials
M. B. Maple,C. L. Seaman,D. A. Gajewski,Y. Dalichaouch,V. B. Barbetta,M. C. de Andrade,Herbert A. Mook,H. G. Lukefahr,O. O. Bernal,D. E. MacLaughlin +9 more
TL;DR: In this article, evidence for non Fermi liquid (NFL) behavior in y1−x UxPd3 and related systems is reviewed and discussed within the context of possible microscopic mechanisms.
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Kondo disorder and non-Fermi-liquid behavior in UCu5-xPdx and CeCu5.9Au0.1.
O. O. Bernal,D. E. MacLaughlin,Anthony A. Amato,Ralf Feyerherm,F. N. Gygax,A. Schenck,R. H. Heffner,L.P. Le,G.J. Nieuwenhuys,Bohdan Andraka,Hilbert von Löhneysen,O. Stockert,H. R. Ott +12 more
TL;DR: Comparisons of \ensuremath{\mu}SR and NMR linewidths suggest that a broad distribution of Kondo temperatures (``Kondo disorder'') is important in UCu, and suggests significant Kondo disorder only if the spatial correlation is long ranged, which is not indicated by other properties of this alloy.
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Inhomogeneous spin-polarization anomaly in the Kondo alloy Y1−xUxPd3
TL;DR: In this paper, an anomalous temperature dependence of the 89 Y line shape indicates that the U-induced host electronic spin polarization is modified on a distance scale orders of magnitude shorter that the Kondo coherence length, strongly suggesting a qualitative difference between the ground states of Y 1− x U x Pd 3 and more conventional Kondo alloys.
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μ+SR in the random bond spin glass URh2Ge2
G.J. Nieuwenhuys,S. Suellow,A.A. Menovsky,J. A. Mydosh,R. H. Heffner,L.P. Le,D. E. MacLaughlin,O. O. Bernal,A. Schenck +8 more
TL;DR: In this article, the authors carried out μ + SR experiments on a single crystal in both the as-grown and annealed states and found that the depolarization function can be described by a stretched exponential, characteristic for spin glasses.