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Title: High-energy magnetic excitations in overdoped La2-xSrxCuO4 studied by neutron and resonant inelastic X-ray scattering

Abstract

We have performed neutron inelastic scattering and resonant inelastic x-ray scattering (RIXS) at the Cu-L3 edge to study high-energy magnetic excitations at energy transfers of more than 100 meV for overdoped La2₋xSrxCuO4 with x=0.25 (Tc=15 K) and x=0.30 (nonsuperconducting) using identical single-crystal samples for the two techniques. From constant-energy slices of neutron-scattering cross sections, we have identified magnetic excitations up to ~250 meV for x=0.25. Although the width in the momentum direction is large, the peak positions along the (π,π) direction agree with the dispersion relation of the spin wave in the nondoped La2CuO4 (LCO), which is consistent with the previous RIXS results of cuprate superconductors. Using RIXS at the Cu-L3 edge, we have measured the dispersion relations of the so-called paramagnon mode along both (π,π) and (π,0) directions. Although in both directions the neutron and RIXS data connect with each other and the paramagnon along (π,0) agrees well with the LCO spin-wave dispersion, the paramagnon in the (π,π) direction probed by RIXS appears to be less dispersive and the excitation energy is lower than the spin wave of LCO near (π/2,π/2). Thus, our results indicate consistency between neutron inelastic scattering and RIXS, and elucidate the entire magnetic excitation inmore » the (π,π) direction by the complementary use of two probes. The polarization dependence of the RIXS profiles indicates that appreciable charge excitations exist in the same energy range of magnetic excitations, reflecting the itinerant character of the overdoped sample. Lastly, we find a possible anisotropy in the charge excitation intensity might explain the apparent differences in the paramagnon dispersion in the (π,π) direction as detected by the x-ray scattering.« less

Authors:
 [1];  [2];  [3];  [4];  [5];  [6];  [5];  [5];  [7];  [8]
  1. Japan Atomic Energy Agency (JAEA), Tokai (Japan). Quantum Beam Science Center
  2. Japan Atomic Energy Agency (JAEA), Hyogo (Japan). SPring-8
  3. Tohoku Univ., Sendai (Japan). Inst. for Multidisciplinary Research for Advanced Materials
  4. Tohoku Univ., Sendai (Japan). Inst. for Materials Research
  5. Politecnico di Milano (Italy). CNR-SPIN and Physics Dept.
  6. European Synchrotron Radiation Facility (ESRF), Grenoble (France)
  7. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Instrument and Source Division
  8. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1185935
Alternate Identifier(s):
OSTI ID: 1182450
Grant/Contract Number:  
AC05-00OR22725; 25390132; 35400333; 24340064
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. B, Condensed Matter and Materials Physics
Additional Journal Information:
Journal Volume: 91; Journal Issue: 18; Journal ID: ISSN 1098-0121
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Wakimoto, S., Ishii, K., Kimura, H., Fujita, M., Dellea, G., Kummer, K., Braicovich, L., Ghiringhelli, G., Debeer-Schmitt, Lisa M., and Granroth, Garrett E. High-energy magnetic excitations in overdoped La2-xSrxCuO4 studied by neutron and resonant inelastic X-ray scattering. United States: N. p., 2015. Web. doi:10.1103/PhysRevB.91.184513.
Wakimoto, S., Ishii, K., Kimura, H., Fujita, M., Dellea, G., Kummer, K., Braicovich, L., Ghiringhelli, G., Debeer-Schmitt, Lisa M., & Granroth, Garrett E. High-energy magnetic excitations in overdoped La2-xSrxCuO4 studied by neutron and resonant inelastic X-ray scattering. United States. https://doi.org/10.1103/PhysRevB.91.184513
Wakimoto, S., Ishii, K., Kimura, H., Fujita, M., Dellea, G., Kummer, K., Braicovich, L., Ghiringhelli, G., Debeer-Schmitt, Lisa M., and Granroth, Garrett E. Thu . "High-energy magnetic excitations in overdoped La2-xSrxCuO4 studied by neutron and resonant inelastic X-ray scattering". United States. https://doi.org/10.1103/PhysRevB.91.184513. https://www.osti.gov/servlets/purl/1185935.
@article{osti_1185935,
title = {High-energy magnetic excitations in overdoped La2-xSrxCuO4 studied by neutron and resonant inelastic X-ray scattering},
author = {Wakimoto, S. and Ishii, K. and Kimura, H. and Fujita, M. and Dellea, G. and Kummer, K. and Braicovich, L. and Ghiringhelli, G. and Debeer-Schmitt, Lisa M. and Granroth, Garrett E.},
abstractNote = {We have performed neutron inelastic scattering and resonant inelastic x-ray scattering (RIXS) at the Cu-L3 edge to study high-energy magnetic excitations at energy transfers of more than 100 meV for overdoped La2₋xSrxCuO4 with x=0.25 (Tc=15 K) and x=0.30 (nonsuperconducting) using identical single-crystal samples for the two techniques. From constant-energy slices of neutron-scattering cross sections, we have identified magnetic excitations up to ~250 meV for x=0.25. Although the width in the momentum direction is large, the peak positions along the (π,π) direction agree with the dispersion relation of the spin wave in the nondoped La2CuO4 (LCO), which is consistent with the previous RIXS results of cuprate superconductors. Using RIXS at the Cu-L3 edge, we have measured the dispersion relations of the so-called paramagnon mode along both (π,π) and (π,0) directions. Although in both directions the neutron and RIXS data connect with each other and the paramagnon along (π,0) agrees well with the LCO spin-wave dispersion, the paramagnon in the (π,π) direction probed by RIXS appears to be less dispersive and the excitation energy is lower than the spin wave of LCO near (π/2,π/2). Thus, our results indicate consistency between neutron inelastic scattering and RIXS, and elucidate the entire magnetic excitation in the (π,π) direction by the complementary use of two probes. The polarization dependence of the RIXS profiles indicates that appreciable charge excitations exist in the same energy range of magnetic excitations, reflecting the itinerant character of the overdoped sample. Lastly, we find a possible anisotropy in the charge excitation intensity might explain the apparent differences in the paramagnon dispersion in the (π,π) direction as detected by the x-ray scattering.},
doi = {10.1103/PhysRevB.91.184513},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 18,
volume = 91,
place = {United States},
year = {Thu May 21 00:00:00 EDT 2015},
month = {Thu May 21 00:00:00 EDT 2015}
}

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Works referenced in this record:

Anomalous High-Energy Spin Excitations in the High- T c Superconductor-Parent Antiferromagnet La 2 CuO 4
journal, December 2010


Magnetic Neutron Scattering in Hole-Doped Cuprate Superconductors
journal, November 2006

  • J. Birgeneau, Robert; Stock, Chris; M. Tranquada, John
  • Journal of the Physical Society of Japan, Vol. 75, Issue 11
  • DOI: 10.1143/JPSJ.75.111003

Progress in Neutron Scattering Studies of Spin Excitations in High- T c Cuprates
journal, January 2012

  • Fujita, Masaki; Hiraka, Haruhiro; Matsuda, Masaaki
  • Journal of the Physical Society of Japan, Vol. 81, Issue 1
  • DOI: 10.1143/JPSJ.81.011007

Quantum magnetic excitations from stripes in copper oxide superconductors
journal, June 2004

  • Tranquada, J. M.; Woo, H.; Perring, T. G.
  • Nature, Vol. 429, Issue 6991
  • DOI: 10.1038/nature02574

The structure of the high-energy spin excitations in a high-transition-temperature superconductor
journal, June 2004

  • Hayden, S. M.; Mook, H. A.; Dai, Pengcheng
  • Nature, Vol. 429, Issue 6991
  • DOI: 10.1038/nature02576

Magnetic Dispersion of the Diagonal Incommensurate Phase in Lightly Doped La 2 x Sr x CuO 4
journal, November 2008


Two energy scales in the spin excitations of the high-temperature superconductor La2−xSrxCuO4
journal, February 2007

  • Vignolle, B.; Hayden, S. M.; McMorrow, D. F.
  • Nature Physics, Vol. 3, Issue 3
  • DOI: 10.1038/nphys546

Direct Relation between the Low-Energy Spin Excitations and Superconductivity of Overdoped High- T c Superconductors
journal, May 2004


Disappearance of Antiferromagnetic Spin Excitations in Overdoped La 2 x Sr x CuO 4
journal, June 2007


Persistence of High-Frequency Spin Fluctuations in Overdoped Superconducting La 2 x Sr x CuO 4 ( x = 0.22 )
journal, August 2007


Magnetic Excitations and Phase Separation in the Underdoped La 2 x Sr x CuO 4 Superconductor Measured by Resonant Inelastic X-Ray Scattering
journal, February 2010


Resonant inelastic x-ray scattering studies of elementary excitations
journal, June 2011

  • Ament, Luuk J. P.; van Veenendaal, Michel; Devereaux, Thomas P.
  • Reviews of Modern Physics, Vol. 83, Issue 2
  • DOI: 10.1103/RevModPhys.83.705

Theoretical Demonstration of How the Dispersion of Magnetic Excitations in Cuprate Compounds can be Determined Using Resonant Inelastic X-Ray Scattering
journal, September 2009


Intense paramagnon excitations in a large family of high-temperature superconductors
journal, July 2011

  • Le Tacon, M.; Ghiringhelli, G.; Chaloupka, J.
  • Nature Physics, Vol. 7, Issue 9
  • DOI: 10.1038/nphys2041

Persistence of magnetic excitations in La2−xSrxCuO4 from the undoped insulator to the heavily overdoped non-superconducting metal
journal, August 2013

  • Dean, M. P. M.; Dellea, G.; Springell, R. S.
  • Nature Materials, Vol. 12, Issue 11
  • DOI: 10.1038/nmat3723

SEQUOIA: A fine resolution chopper spectrometer at the SNS
journal, November 2006


SEQUOIA: A Newly Operating Chopper Spectrometer at the SNS
journal, November 2010


Dispersive spin excitations in highly overdoped cuprates revealed by resonant inelastic x-ray scattering
journal, July 2013


High-energy spin and charge excitations in electron-doped copper oxide superconductors
journal, April 2014

  • Ishii, K.; Fujita, M.; Sasaki, T.
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms4714

Asymmetry of collective excitations in electron- and hole-doped cuprate superconductors
journal, October 2014

  • Lee, W. S.; Lee, J. J.; Nowadnick, E. A.
  • Nature Physics, Vol. 10, Issue 11
  • DOI: 10.1038/nphys3117

Persistent spin excitations in doped antiferromagnets revealed by resonant inelastic light scattering
journal, February 2014

  • Jia, C. J.; Nowadnick, E. A.; Wohlfeld, K.
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms4314

Anisotropic softening of magnetic excitations along the nodal direction in superconducting cuprates
journal, December 2014

  • Guarise, M.; Piazza, B. Dalla; Berger, H.
  • Nature Communications, Vol. 5, Issue 1
  • DOI: 10.1038/ncomms6760

Itinerant effects and enhanced magnetic interactions in Bi-based multilayer cuprates
journal, December 2014


Energy and symmetry of dd excitations in undoped layered cuprates measured by Cu L 3 resonant inelastic x-ray scattering
journal, April 2011


Works referencing / citing this record:

Theory of angle-dependent marginal Fermi liquid self-energy and its existence at all dopings in cuprates
journal, June 2019


Damped spin excitations in a doped cuprate superconductor with orbital hybridization
text, January 2017