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Long-range charge density wave proximity effect at cuprate-manganate interfaces
A. Frano, S. Blanco-Canosa, E. Schierle +13
The interplay between charge density waves (CDWs) and high-temperature superconductivity is currently under intense investigation. Experimental research on this issue is difficult…
Persistent paramagnons deep in the metallic phase of SrLaIrO
H. Gretarsson, N. H. Sung, J. Porras +13
We have studied the magnetic excitations of electron-doped SrLaIrO () using resonant inelastic x-ray scattering (RIXS) at the Ir L-edge. The…
Crystal growth and intrinsic magnetic behavior of SrIrO
N. H. Sung, H. Gretarsson, D. Proepper +5
We report on the growth of stoichiometric SrIrO single crystals, which allow us to unveil their intrinsic magnetic properties. The effect of different growth conditions has…
Two-magnon Raman scattering and pseudospin-lattice interactions in Sr2IrO4 and Sr3Ir2O7
H. Gretarsson, N. H. Sung, M. Hoeppner +3
We have used Raman scattering to investigate the magnetic excitations and lattice dynamics in the prototypical spin-orbit Mott insulators Sr2IrO4 and Sr3Ir2O7. Both compounds exhib…
Tunable Charge and Spin Order in PrNiO Thin Films and Superlattices
M. Hepting, M. Minola, A. Frano +10
We have used polarized Raman scattering to probe lattice vibrations and charge ordering in 12 nm thick, epitaxially strained PrNiO films, and in superlattices of PrNiO with…
Short-Range Correlations in Magnetite above the Verwey Temperature
Alexey Bosak, Dmitry Chernyshov, Moritz Hoesch +6
Magnetite, FeO, is the first magnetic material discovered and utilized by mankind in Ancient Greece, yet it still attracts attention due to its puzzling properties. This is…
Anharmonicity due to Electron-Phonon Coupling in Magnetite
Moritz Hoesch, Przemyslaw Piekarz, Alexey Bosak +5
We present the results of inelastic x-ray scattering for magnetite and analyze the energies and spectral widths of the phonon modes with different symmetries in a broad range of te…
Dispersive spin excitations in highly overdoped cuprates revealed by resonant inelastic x-ray scattering
M. Le Tacon, M. Minola, D. C. Peets +11
Using resonant inelastic x-ray scattering (RIXS) at the Cu -absorption edge, we have observed intense, dispersive spin excitations in highly overdoped TlBaCuO (s…
Thermoelectric Properties of YBa2Cu3O7-(La,Ca)MnO3 Superlattices
S. Heinze, H. -U. Habermeier, G. Cristiani +3
We report measurements of the thermoelectric power and electrical resistivity of superlattices composed of the high-temperature superconductor YBa2Cu3O(7-delta) (YBCO) and the meta…
Long-range incommensurate charge fluctuations in (Y,Nd)Ba2Cu3O(6+x)
G. Ghiringhelli, M. Le Tacon, M. Minola +17
There are increasing indications that superconductivity competes with other orders in cuprate superconductors, but obtaining direct evidence with bulk-sensitive probes is challengi…
Long-range transfer of electron-phonon coupling in oxide superlattices
N. Driza, S. Blanco-Canosa, M. Bakr +10
The electron-phonon interaction is of central importance for the electrical and thermal properties of solids, and its influence on superconductivity, colossal magnetoresistance, an…
Understanding the complex phase diagram of uranium: the role of electron-phonon coupling
S. Raymond, J. Bouchet, G. H. Lander +8
We report an experimental determination of the dispersion of the soft phonon mode along [1,0,0] in uranium as a function of pressure. The energies of these phonons increase rapidly…