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Heavy Fermion Behavior, Crystalline Electric Field Effects, and Weak Ferromagnetism in SmOs_{4}Sb_{12}
W. M. Yuhasz, N. A. Frederick, P. -C. Ho +8
The filled skutterudite compound SmOs_{4}Sb_{12} was prepared in single crystal form and characterized. The SmOs_{4}Sb_{12} crystals have the LaFe_{4}P_{12}-type structure with lat…
Ferromagnetism and possible heavy fermion behavior in single crystals of NdOsSb
P. -C. Ho, W. M. Yuhasz, N. P. Butch +8
Single crystals of the filled-skutterudite compound NdOsSb have been investigated by means of electrical resistivity, magnetization, and specific heat measurements. The…
Pronounced enhancement of the lower critical field and critical current deep in the superconducting state of PrOsSb
T. Cichorek, A. C. Mota, F. Steglich +3
We have observed an unexpected enhancement of the lower critical field and the critical current deep in the superconducting state below K ($T…
Local Distortion Induced Metal-to-Insulator Phase Transition in PrRuP
D. Cao, R. H. Heffner, F. Bridges +4
Extended X-ray Absorption Fine Structure (EXAFS) experiments have been carried out on PrRuP and PrOsP to study the metal-to-insulator (MI) phase transition in…
Evolution of crystalline electric field effects, superconductivity, and heavy fermion behavior in the specific heat of Pr(OsRu)Sb
N. A. Frederick, T. A. Sayles, M. B. Maple
Specific heat measurements were made on single crystals of the superconducting filled skutterudite series Pr(OsRu)Sb down to 0.6 K. Crystalline electr…
The Crystal Field Potential of PrOs4Sb12: Consequences for Superconductivity
E. A. Goremychkin, R. Osborn, E. D. Bauer +5
The results of inelastic neutron scattering provide a solution for the crystal field level scheme in PrOs4Sb12 in which the ground state in the cubic crystal field potential of Th…
Interaction Between Superconducting and Ferromagnetic Order Parameters in Graphite-Sulfur Composites
S. Moehlecke, Y. Kopelevich, M. B. Maple
The superconductivity of graphite-sulfur composites is highly anisotropic and associated with the graphite planes. The superconducting state coexists with the ferromagnetism of pur…
Disorder, inhomogeneity and spin dynamics in f-electron non-Fermi liquid systems
D. E. MacLaughlin, R. H. Heffner, O. O. Bernal +5
Muon spin rotation and relaxation (SR) experiments have yielded evidence that structural disorder is an important factor in many f-electron-based non-Fermi-liquid (NFL) systems.…