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9 papers · 2 filters
Interaction-induced singular Fermi surface in a high-temperature oxypnictide superconductor
A. Charnukha, S. Thirupathaiah, V. B. Zabolotnyy +5
In the family of iron-based superconductors, LaFeAsO-type materials possess the simplest electronic structure due to their pronounced two-dimensionality. And yet they host supercon…
Coherent Modulation of the YBa2Cu3O6+x Atomic Structure by Displacive Stimulated Ionic Raman Scattering
R. Mankowsky, M. Först, T. Loew +3
We discuss the mechanism of coherent phonon generation by Stimulated Ionic Raman Scattering, a process different from conventional excitation with near visible optical pulses. Ioni…
Structural and magnetic phase transitions near optimal superconductivity in BaFe(AsP)
Ding Hu, Xingye Lu, Wenliang Zhang +17
We use nuclear magnetic resonance (NMR), high-resolution x-ray and neutron scattering to study structural and magnetic phase transitions in phosphorus-doped BaFe(AsP$_x…
Broken translational and rotational symmetry via charge stripe order in underdoped YBCO
R. Comin, R. Sutarto, E. H. da Silva Neto +7
Following the early discovery of stripe-like order in La-based copper-oxide superconductors, charge ordering instabilities were observed in all cuprate families. However, it has pr…
Influence of the Fermi Surface Morphology on the Magnetic Field-Driven Vortex Lattice Structure Transitions in YBaCuO0, 0.15
Nikola Galvan Leos, Jonathan S. White, Joshua A. Lim +11
We report small-angle neutron scattering measurements of the vortex lattice (VL) structure in single crystals of the lightly underdoped cuprate superconductor YBa2Cu3O6.85. At 2 K,…
Two distinct kinetic regimes for the relaxation of light-induced superconductivity in LaEuSrCuO
C. R. Hunt, D. Nicoletti, S. Kaiser +3
We address the kinetic competition between charge striped order and superconductivity in LaEuSrCuO. Ultrafast optical excitation is tuned to a mid…