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Spin–orbital separation in the quasi-one-dimensional Mott insulator Sr₂CuO₃

The splitting of the electron into distinct quasi-particles separately carrying the elementary particles’ spin and orbital angular momentum is observed in a one-dimensional Mott insulator.

J. Schlappa
K. Wohlfeld
T. Schmitt
Research18 Apr 2012
Nature

Volume: 485, P: 82-85
Probing multi-spinon excitations outside of the two-spinon continuum in the antiferromagnetic spin chain cuprate Sr₂CuO₃

Quasi-1D magnetic insulators are very attractive for searching and studying quantum many-body phenomena. Here the authors report the four-spinon excitations in quasi-1D spin-chain cuprate Sr2CuO3 by momentum resolved RIXS technique which provides a new route for the creation of magnetic excitations in 1D materials.

J. Schlappa
U. Kumar
T. Schmitt
ResearchOpen Access19 Dec 2018
Nature Communications

Volume: 9, P: 1-8
Transient absorption of warm dense matter created by an X-ray free-electron laser

Warm dense copper, created by an X-ray free-electron laser, features a transition from reverse saturable absorption to saturable absorption. The results can be used to benchmark non-equilibrium models of electronic structure in warm dense matter.

Laurent Mercadier
Andrei Benediktovitch
Nina Rohringer
ResearchOpen Access29 Jul 2024
Nature Physics

Volume: 20, P: 1564-1569
Femtosecond X-ray induced changes of the electronic and magnetic response of solids from electron redistribution

X-ray free electron lasers allow for studying the interaction of magnetic materials with intense X-rays beyond a linear response regime. Here, the authors demonstrate the onset of X-ray induced ultrafast demagnetization in Co/Pd multilayers via a redistribution of valence electrons on timescales shorter than 40 fs.

Daniel J. Higley
Alex H. Reid
Joachim Stöhr
ResearchOpen Access21 Nov 2019
Nature Communications

Volume: 10, P: 1-9
Self-doping processes between planes and chains in the metal-to-superconductor transition of YBa₂Cu₃O_6.9

M. Magnuson
T. Schmitt
L.-C. Duda
ResearchOpen Access12 Nov 2014
Scientific Reports

Volume: 4, P: 1-6
Charge disproportionation and nano phase separation in \(\textit{R}\mathrm{SrNiO}_{4}\)

H. Guo
Z. W. Li
A. C. Komarek
ResearchOpen Access22 Oct 2020
Scientific Reports

Volume: 10, P: 1-11

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Spin–orbital separation in the quasi-one-dimensional Mott insulator Sr2CuO3

Probing multi-spinon excitations outside of the two-spinon continuum in the antiferromagnetic spin chain cuprate Sr2CuO3

Transient absorption of warm dense matter created by an X-ray free-electron laser

Femtosecond X-ray induced changes of the electronic and magnetic response of solids from electron redistribution

Self-doping processes between planes and chains in the metal-to-superconductor transition of YBa2Cu3O6.9

Charge disproportionation and nano phase separation in \(\textit{R}\mathrm{SrNiO}_{4}\)

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Spin–orbital separation in the quasi-one-dimensional Mott insulator Sr₂CuO₃

Probing multi-spinon excitations outside of the two-spinon continuum in the antiferromagnetic spin chain cuprate Sr₂CuO₃

Self-doping processes between planes and chains in the metal-to-superconductor transition of YBa₂Cu₃O_6.9