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Intense paramagnon excitations in a large family of high-temperature superconductors

In the copper oxide superconductors, spin fluctuations might be involved in the electronic pairing mechanism. The case for such magnetically mediated superconductivity is now strengthened by the discovery of high-energy magnetic excitations that are not affected by chemical doping levels within several cuprates.

M. Le Tacon
G. Ghiringhelli
B. Keimer
Research10 Jul 2011
Nature Physics

Volume: 7, P: 725-730
Dispersive charge density wave excitations in Bi₂Sr₂CaCu₂O_8+δ

Ultrahigh-resolution resonant inelastic X-ray scattering shows how dispersive charge density wave excitations influence the charge and lattice degrees of freedom in a high-T_c cuprate, pointing to a connection to the mysterious pseudogap state.

L. Chaix
G. Ghiringhelli
W.-S. Lee
Research12 Jun 2017
Nature Physics

Volume: 13, P: 952-956
Charge order and its connection with Fermi-liquid charge transport in a pristine high-T_c cuprate

Charge–density–wave correlations, quantum oscillations and Fermi-liquid charge transport are at the centre of a heated debate in cuprate superconductivity. Using resonant X-ray scattering, Tabis et al. investigate the charge order and its link to the electronic transport properties in HgBa₂CuO_4+δ.

W. Tabis
Y. Li
M. Greven
Research19 Dec 2014
Nature Communications

Volume: 5, P: 1-6
High-energy spin and charge excitations in electron-doped copper oxide superconductors

Understanding spin dynamics in the cuprates is vital to understanding the origin high-temperature superconductivity. X-ray and neutron spectra obtained by Ishii et al.suggest that the spins in electron-doped cuprates are itinerant, in contrast to recent evidence that in hole-doped cuprates they are localized.

K. Ishii
M. Fujita
J. Mizuki
Research25 Apr 2014
Nature Communications

Volume: 5, P: 1-8
Persistence of magnetic excitations in La_2−xSr_xCuO₄ from the undoped insulator to the heavily overdoped non-superconducting metal

The interplay between magnetism and superconductivity in copper oxide superconductors has been a topic of intense research. Now, a systematic resonant inelastic X-ray scattering study of strontium-doped lanthanum cuprate shows that high-energy magnetic excitations persist over a wide doping range.

M. P. M. Dean
G. Dellea
J. P. Hill
Research04 Aug 2013
Nature Materials

Volume: 12, P: 1019-1023
Re-entrant charge order in overdoped (Bi,Pb)_2.12Sr_1.88CuO_6+δ outside the pseudogap regime

Observation of charge order in the overdoped (Bi,Pb)₂Sr₂CuO_6+δ superconductor using resonant X-ray scattering and angular-resolved photoemission spectroscopy, over a wide temperature range.

Y. Y. Peng
R. Fumagalli
G. Ghiringhelli
Research11 Jun 2018
Nature Materials

Volume: 17, P: 697-702
Influence of apical oxygen on the extent of in-plane exchange interaction in cuprate superconductors

A detailed resonant inelastic X-ray scattering (RIXS) study of a series of well-known cuprate superconductors reveals a correlation between the number of apical oxygens in these systems, and the strength of their in-plane exchange interaction.

Y. Y. Peng
G. Dellea
G. Ghiringhelli
Research28 Aug 2017
Nature Physics

Volume: 13, P: 1201-1206
Three-dimensional collective charge excitations in electron-doped copper oxide superconductors

Resonant inelastic X-ray scattering on electron-doped copper oxide superconductors reveals a three-dimensional charge collective mode, which has properties suggestive of the long-sought acoustic plasmon.

M. Hepting
L. Chaix
W. S. Lee
Research31 Oct 2018
Nature

Volume: 563, P: 374-378
Ab Initio determination of Cu 3d orbital energies in layered copper oxides

Liviu Hozoi
Liudmila Siurakshina
Jeroen van den Brink
ResearchOpen Access16 Aug 2011
Scientific Reports

Volume: 1, P: 1-4

Search

Intense paramagnon excitations in a large family of high-temperature superconductors

Dispersive charge density wave excitations in Bi₂Sr₂CaCu₂O_8+δ

Charge order and its connection with Fermi-liquid charge transport in a pristine high-T_c cuprate

High-energy spin and charge excitations in electron-doped copper oxide superconductors

Persistence of magnetic excitations in La_2−xSr_xCuO₄ from the undoped insulator to the heavily overdoped non-superconducting metal

Re-entrant charge order in overdoped (Bi,Pb)_2.12Sr_1.88CuO_6+δ outside the pseudogap regime

Influence of apical oxygen on the extent of in-plane exchange interaction in cuprate superconductors

Three-dimensional collective charge excitations in electron-doped copper oxide superconductors

Ab Initio determination of Cu 3d orbital energies in layered copper oxides

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