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Hybridization-Driven Orthorhombic Lattice Instability in URu2Si2
T. Yanagisawa, S. Mombetsu, H. Hidaka +8
We have measured the elastic constant (C11-C12)/2 in URu2Si2 by means of high-frequency ultrasonic measurements in pulsed magnetic fields H || [001] up to 61.8 T in a wide temperat…
Nuclear magnetic resonance studies of pseudospin fluctuations in URuSi
K. R. Shirer, J. T. Haraldsen, A. P. Dioguardi +13
We report Si NMR measurements in single crystals and aligned powders of URuSi in the hidden order and paramagnetic phases. The spin-lattice-relaxation data reveal ev…
Persistent non-metallic behavior in Sr2IrO4 and Sr3Ir2O7 at high pressures
D. A. Zocco, J. J. Hamlin, B. D. White +6
Iridium-based 5d transition-metal oxides are attractive candidates for the study of correlated electronic states due to the interplay of enhanced crystal-field, Coulomb and spin-or…
Ferromagnetic quantum critical point in UCo1-xFexGe
K. Huang, J. J. Hamlin, R. E. Baumbach +5
We have carried out a comprehensive study of the UCo1-xFexGe series across the entire range of compositions 0 <= x <= 1, and report the results of x-ray diffraction, magnetization,…
Yb Valence Change in (Ce,Yb)CoIn5 from spectroscopy and bulk properties
L. Dudy, J. D. Denlinger, L. Shu +3
The electronic structure of (Ce,Yb)CoIn5 has been studied by a combination of photoemission, x-ray absorption and bulk property measurements. Previous findings of a Ce valence near…
Absence of a static in-plane magnetic moment in the "hidden-order" phase of URuSi
P. Das, R. E. Baumbach, E. D. Bauer +6
We have carried out a careful magnetic neutron scattering study of the heavy fermion compound \URuSi\ to probe the possible existence of a small magnetic moment parallel to tetrago…