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11 papers · 1 filter
Protected nodes and the collapse of the Fermi arcs in high Tc cuprates
A. Kanigel, U. Chatterjee, M. Randeria +6
Angle resolved photoemission on underdoped Bi2Sr2CaCu2O8 reveals that the magnitude and d-wave anisotropy of the superconducting state energy gap are independent of temperature all…
Anisotropic quasiparticle scattering rates in slightly underdoped to optimally doped high-temperature \LSCO\ superconductors
J. Chang, M. Shi, S. Pailhes +11
An angle-resolved photoemission study of the scattering rate in the superconducting phase of the high-temperature superconductor \LSCO\ with and , as a function o…
Direct observation of oxygen superstructures in manganites
S. Grenier, K. J. Thomas, J. P. Hill +8
We report the observation of superstructures associated with the oxygen 2p-states in two prototypical manganites using x-ray diffraction at the oxygen K-edge. We determine the natu…
Resistive Switching in Cr doped SrTiO3: An X-ray Absorption Spectroscopy study
B. P. Andreasson, M. Janousch, U. Staub +2
X-ray absorption spectroscopy was used to study the microscopic origin of conductance and resistive switching in chromium doped strontium titanate (Cr:SrTiO3). Differences in the x…
Role of oxygen vacancies in Cr-doped SrTiO3 for resistance-change memory
M. Janousch, G. I. Meijer, U. Staub +3
Transition-metal oxides exhibiting a bistable resistance state are attractive for non-volatile memory applications. The relevance of oxygen vacancies (VO) for the resistance-change…
Manipulating the magnetic structure by electric fields in multiferroic ErMn2O5
Y. Bodenthin, U. Staub, M. Garcia-Fernandez +5
Based on measurements of soft x-ray magnetic diffraction under in-situ applied electric field, wereport on significantly manipulation and exciting of commensurate magnetic order in…