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11 papers · 2 filters
Imaging the granular structure of high-Tc superconductivity in underdoped Bi2Sr2CaCu2O8+x
K. M. Lang, V. Madhavan, J. E. Hoffman +4
Granular superconductivity occurs when microscopic superconducting grains are separated by non-superconducting regions through which they communicate by Josephson tunneling to esta…
Specific Heat of CeRhIn5: Pressure-Driven Evolution of the Ground State from Antiferromagnetism to Superconductivity
R. A. Fisher, F. Bouquet, N. E. Phillips +5
Measurements of the specific heat of antiferromagnetic CeRhIn5, to 21 kbar, and for 21 kbar to 70 kOe, show a discontinuous change from an antiferromagnetic ground state below 15 k…
Two energy scales and slow crossover in YbAl3
J. M. Lawrence, T. Ebihara, P. S. Riseborough +8
Experimental results for the susceptibility, specific heat, 4f occupation number, Hall effect and magnetoresistance for single crystals of YbAl show that, in addition to the…
Bulk Band Gaps in Divalent Hexaborides: A Soft X-Ray Emission Study
J. D. Denlinger, G. -H. Gweon, J. W. Allen +2
Boron K-edge soft x-ray emission and absorption are used to address the fundamental question of whether divalent hexaborides are intrinsic semimetals or defect-doped bandgap insula…
Temperature Dependent 5f-states in URu_2Si_2
J. D. Denlinger, G. -H. Gweon, J. W. Allen +1
A dramatic temperature dependent enhancement of U 5f spectral weight at is observed in angle-resolved photoemission measurements of at the center of an X-point ho…
Photoemission view of electron fractionalization in quasi-one dimensional metal LiMoO
G. -H. Gweon, J. D. Denlinger, C. G. Olson +3
We report Luttinger liquid line shapes better revealed by new angle resolved photoemission data taken with a much improved angle resolution on a quasi-1-dimensional metal Li$_{0.9}…