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Journal articles
Resonant inelastic x-ray scattering studies of magnons and bimagnons in the lightly doped cuprate La 2 − x Sr x CuO 4
L. Chaix
1
E. Huang
1
S. Gerber
2
X. Lu
3
C. Jia
1
Y. Huang
3
D. Mcnally
3
Y. Wang
4
F. Vernay
5
A. Keren
M. Shi
B. Moritz
6
Z.-X. Shen
1
T. Schmitt
3
T. Devereaux
7
W.-S. Lee
1
L. Chaix 1
Author IdHAL : laura-chaix arXiv : https://arxiv.org/a/Chaix, L
E. Huang 1
Author
S. Gerber 2
Author
X. Lu 3
Author
F. Vernay 5
Author IdHAL : francois-vernay arXiv : https://arxiv.org/a/vernay_f_1 IdRef : https://www.idref.fr/197772870 ORCID : https://orcid.org/0000-0003-3713-7724
A. Keren
Author
M. Shi
Author
B. Moritz 6
Author
1
Stanford Institute for Materials and Energy Sciences (94025;Menlo Park - United States)
- SLAC - SLAC National Accelerator Laboratory (2575 Sand Hill Road, Menlo Park, CA 94025 - United States)
- Stanford University [Stanford] (450 Serra Mall, Stanford, CA 94305-2004 - United States)
2
SwissFEL and Laboratory for Micro and Nanotechnology (Switzerland)
- PSI - Paul Scherrer Institute (Villigen PSI, CH5232 Villigen, Suisse - Switzerland)
3
SLS-PSI - The Swiss Light Source (SLS) (Paul Scherrer Institut 5232 Villigen PSI Suisse - Switzerland)
- PSI - Paul Scherrer Institute (Villigen PSI, CH5232 Villigen, Suisse - Switzerland)
4
University of Bath [Bath] (laverton Down, Bath, North East Somerset BA2 7AY - United Kingdom)
5
PROMES - Procédés, Matériaux et Energie Solaire (7 rue du Four Solaire Centre Felix Trombe 66120 Odeillo Font-Romeu
Tecnosud Rambla de la thermodynamique 66100 Perpignan - France)
- UPVD - Université de Perpignan Via Domitia (52 avenue Paul Alduy - 66860 Perpignan Cedex 9 - France)
- CNRS - Centre National de la Recherche Scientifique : UPR8521 (France)
6
SLAC - Stanford Linear Accelerator Center (SLAC Stanford University 2575 Sand Hill Rd Menlo Park, CA 94039 - United States)
- Stanford University [Stanford] (450 Serra Mall, Stanford, CA 94305-2004 - United States)
7
Geballe Laboratory for Advanced Materials (94305;Stanford - United States)
- Stanford University [Stanford] (450 Serra Mall, Stanford, CA 94305-2004 - United States)
Abstract : We investigated the doping dependence of magnetic excitations in the lightly doped cuprate La2−xSrxCuO4 via combined studies of resonant inelastic x-ray scattering (RIXS) at the Cu L3 edge and theoretical calculations. With increasing doping, the magnon dispersion is found to be essentially unchanged, but the spectral width broadens and the spectral weight varies differently at different momenta. Near the Brillouin zone center, we directly observe bimagnon excitations that possess the same energy scale and doping dependence as previously observed by Raman spectroscopy. They disperse weakly in energy-momentum space, and they are consistent with a bimagnon dispersion that is renormalized by the magnon-magnon interaction at the zone center.
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Journal articles
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https://hal-univ-perp.archives-ouvertes.fr/hal-01904374
Contributor : Dorian Miler <>
Submitted on : Wednesday, October 24, 2018 - 6:42:38 PM
Last modification on : Wednesday, August 26, 2020 - 11:08:02 AM
Contributor : Dorian Miler <>
Submitted on : Wednesday, October 24, 2018 - 6:42:38 PM
Last modification on : Wednesday, August 26, 2020 - 11:08:02 AM
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- HAL Id : hal-01904374, version 1
- DOI : 10.1103/PhysRevB.97.155144
Citation
L. Chaix, E. Huang, S. Gerber, X. Lu, C. Jia, et al.. Resonant inelastic x-ray scattering studies of magnons and bimagnons in the lightly doped cuprate La 2 − x Sr x CuO 4. Physical Review B: Condensed Matter and Materials Physics, American Physical Society, 2018, 97 (15), ⟨10.1103/PhysRevB.97.155144⟩. ⟨hal-01904374⟩
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