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28 papers · 1 filter
Chandra deep observation of XDCP J0044.0-2033, a massive galaxy cluster at z>1.5
P. Tozzi, J. S. Santos, M. J. Jee +11
We report the analysis of the Chandra observation of XDCP J0044.0-2033, a massive, distant (z=1.579) galaxy cluster discovered in the XDCP survey. The total exposure time of 380 ks…
Heat transfer coefficient saturation in superconducting Nb tunnel junctions contacted to a NbTiN circuit and an Au energy relaxation layer
Stefan Selig, Marc Peter Westig, Karl Jacobs +2
In this paper we present the experimental realization of a Nb tunnel junction connected to a high-gap superconducting NbTiN embedding circuit. We investigate relaxation of nonequil…
M{ö}ssbauer characterization of an unusual high-spin side-on peroxo-Fe3+ species in the active site of superoxide reductase from Desulfoarculus Baarsii. Density functional calculations on related models
Olivier Horner, Jean-Marie Mouesca, Jean-Louis Oddou +9
Superoxide reductase (SOR) is an Fe protein that catalyzes the reduction of superoxide to give H(2)O(2). Recently, the mutation of the Glu47 residue into alanine (E47A) in the acti…
Probing the galaxy-halo connection in UltraVISTA to
H. J. McCracken, M. Wolk, S. Colombi +10
We use percent-level precision photometric redshifts in the UltraVISTA-DR1 near-infrared survey to investigate the changing relationship be- tween galaxy stellar mass and the dark…
Spin dynamics and disorder effects in the S=1/2 kagome Heisenberg spin liquid phase of kapellasite
E. Kermarrec, A. Zorko, F. Bert +10
We report Cl NMR, ESR, SR and specific heat measurements on the frustrated kagomé magnet kapellasite, CuZn(OH)Cl, where a gapless spin liquid phas…
Multiplexed Readout of Transmon Qubits with Josephson Bifurcation Amplifiers
V. Schmitt, X. Zhou, K. Juliusson +4
Achieving individual qubit readout is a major challenge in the development of scalable superconducting quantum processors. We have implemented the multiplexed readout of a four tra…