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Effect of pseudogap on electronic anisotropy in the strain dependence of the superconducting of underdoped YBaCuO
M. Frachet, D. J. Campbell, A. Missiaen +11
For orthorhombic superconductors we define thermodynamic anisotropy as the difference in how superconducting varies with strains $ε_…
Charge density waves in YBaCuO probed by resonant x-ray scattering under uniaxial compression
H. -H. Kim, E. Lefrançois, K. Kummer +14
We report a comprehensive Cu L-edge resonant x-ray scattering study of two- and three-dimensional (2D and 3D) incommensurate charge correlations in single crystals of the under…
Re-entrant charge order in overdoped (Bi,Pb)SrCuO outside the pseudogap regime
Y. Y. Peng, R. Fumagalli, Y. Ding +15
Charge modulations are considered as a leading competitor of high-temperature superconductivity in the underdoped cuprates, and their relationship to Fermi surface reconstructions…
Accessing the Full Superconducting Dome in Pristine YBa2Cu3O6+x Under Pressure
P. L. Alireza, G. H. Zhang, W. Guo +7
We attain the previously unaccessed full superconducting dome in a pristine high temperature cuprate superconductor by applying pressures up to 280 kbar to samples of near stoichio…
Direct observation of charge order in underdoped and optimally doped Bi(Sr,La)CuO by resonant inelastic x-ray scattering
Y. Y. Peng, M. Salluzzo, X. Sun +10
Charge order in underdoped and optimally doped high- superconductors BiSrLaCuO (Bi2201) is investigated by Cu edge resonant inelastic…
Influence of apical oxygen on the extent of in-plane exchange interaction in cuprate superconductors
Y. Y. Peng, G. Dellea, M. Minola +14
In high Tc superconductors the magnetic and electronic properties are determined by the probability that valence electrons virtually jump from site to site in the CuO2 planes, a me…
Strong anharmonicity induces quantum melting of charge density wave in 2H-NbSe under pressure
Maxime Leroux, Ion Errea, Mathieu Le Tacon +7
The interplay between charge density wave (CDW) order and superconductivity has attracted much attention. This is the central issue of along standing debate in simple transition me…
Pressure-induced phase transition and superconductivity in YBa2Cu4O8
S. M. Souliou, A. Subedi, Y. T. Song +4
We investigate the pressure and temperature dependence of the lattice dynamics of the underdoped, stoichiometric, high temperature superconductor YBa2Cu4O8 by means of Raman spectr…
Resonant X-ray Scattering Study of Charge Density Wave Correlations in YBaCuO
S. Blanco-Canosa, A. Frano, E. Schierle +7
We report the results a comprehensive study of charge density wave (CDW) correlations in untwinned YBCO6+x single crystals with 0.4<x<0.99 using Cu-L3 edge resonant x-ray scatterin…
Structural and electronic properties of epitaxial YBaCuO/LaCaMnO bilayers grown on SrTiO (110) substrates
L. Mustafa, N. Driza, S. Soltan M. Le Tacon +2
Epitaxial bilayers of the high-temperature-superconductor YBa2Cu3O7-d (YBCO) and the ferromagnetic metal La0.67Ca0.33MnO3 (LCMO) were prepared by pulsed laser deposition on (110)-o…
Superconductivity-induced Phonon Renormalization on NaFeCoAs
Y. J. Um, Yunkyu Bang, B. H. Min +2
We report a study of the lattice dynamics in superconducting NaFeAs (Tc = 8 K) and doped NaFe0.97Co0.03As (Tc = 20 K) using Raman light scattering. Five of the six phonon modes exp…
Charge order driven by Fermi-arc instability in Bi2201
R. Comin, A. Frano, M. M. Yee +14
The understanding of the origin of superconductivity in cuprates has been hindered by the apparent diversity of intertwining electronic orders in these materials. We combined reson…
Ubiquitous Interplay between Charge Ordering and High-Temperature Superconductivity in Cuprates
Eduardo H. da Silva Neto, Pegor Aynajian, Alex Frano +11
Besides superconductivity, copper-oxide high temperature superconductors are susceptible to other types of ordering. We use scanning tunneling microscopy and resonant elastic x-ray…
Lattice dynamical signature of charge density wave formation in underdoped YBa2Cu3O6+x
M. Bakr, S. M. Souliou, S. Blanco-Canosa +10
We report a detailed Raman scattering study of the lattice dynamics in detwinned single crystals of the underdoped high temperature superconductor YBa2Cu3O6+x (x=0.75, 0.6, 0.55 an…
Optically enhanced coherent transport in YBa2Cu3O6.5 by ultrafast redistribution of interlayer coupling
W. Hu, S. Kaiser, D. Nicoletti +7
Nonlinear optical excitation of infrared active lattice vibrations has been shown to melt magnetic or orbital orders and to transform insulators into metals. In cuprates, this tech…
Comparison of charge modulations in LaBaCuO and YBaCuO
V. Thampy, S. Blanco-Canosa, M. García-Fernández +7
A charge modulation has recently been reported in (Y,Nd)BaCuO [Ghiringhelli {\em et al.} Science 337, 821 (2013)]. Here we report Cu edge soft x-ray scatterin…
Magnetic excitations in stripe-ordered LaBaCuO studied using resonant inelastic x-ray scattering
M. P. M. Dean, G. Dellea, M. Minola +10
The charge and spin correlations in LaBaCuO (LBCO 1/8) are studied using Cu edge resonant inelastic x-ray scattering (RIXS). The static charge order (…
Momentum-dependent charge correlations in YBaCuO superconductors probed by resonant x-ray scattering: Evidence for three competing phases
S. Blanco-Canosa, A. Frano, T. Loew +10
We have used resonant x-ray scattering to determine the momentum dependent charge correlations in YBaCuO samples with highly ordered chain arrays of oxygen accepto…
Anharmonic suppression of Charge density wave in 2H-NbS
Maxime Leroux, Mathieu Le Tacon, Matteo Calandra +6
The temperature dependence of the phonon spectrum in the superconducting transition metal dichalcogenide 2H-NbS is measured by diffuse and inelastic x-ray scattering. A deep, w…
Optically induced coherent transport far above Tc in underdoped YBa2Cu3O6+x
S. Kaiser, C. R. Hunt, D. Nicoletti +8
We report on a photo-induced transient state of YBa2Cu2O6+x in which transport perpendicular to the Cu-O planes becomes highly coherent. This effect is achieved by excitation with…
Anomalous dependence of the c-axis polarized Fe B phonon mode with Fe and Se concentrations in FeTeSe
Y. J. Um, A. Subedi, P. Toulemonde +10
We report an investigation of the lattice dynamical properties in a range of FeTeSe compounds, with special emphasis on the c-axis polarized vibration of Fe w…
Raman Scattering Study of the Lattice Dynamics of Superconducting LiFeAs
Y. J. Um, J. T. Park, B. H. Min +4
We report an investigation of the lattice dynamical properties of LiFeAs using inelastic light scattering. Five out of the six expected phonon modes are observed. The temperature e…
Intense paramagnon excitations in a large family of high-temperature superconductors
M. Le Tacon, G. Ghiringhelli, J. Chaloupka +17
In the search for the mechanism of high-temperature superconductivity, intense research has been focused on the evolution of the spin excitation spectrum upon doping from the antif…