Collective Magnetic Excitations in the Spin Ladder Sr14Cu24O41 Measured Using High-Resolution Resonant Inelastic X-Ray Scattering

@article{ ISI:000268307400067,
Author = {Schlappa, J. and Schmitt, T. and Vernay, F. and Strocov, V. N. and
   Ilakovac, V. and Thielemann, B. and Ronnow, H. M. and Vanishri, S. and
   Piazzalunga, A. and Wang, X. and Braicovich, L. and Ghiringhelli, G. and
   Marin, C. and Mesot, J. and Delley, B. and Patthey, L.},
Title = {{Collective Magnetic Excitations in the Spin Ladder Sr14Cu24O41 Measured
   Using High-Resolution Resonant Inelastic X-Ray Scattering}},
Journal = {{PHYSICAL REVIEW LETTERS}},
Year = {{2009}},
Volume = {{103}},
Number = {{4}},
Month = {{JUL 24}},
Abstract = {{We investigate magnetic excitations in the spin-ladder compound
   Sr14Cu24O41 using high-resolution Cu L-3 edge resonant inelastic x-ray
   scattering (RIXS). Our findings demonstrate that RIXS couples to
   two-triplon collective excitations. In contrast to inelastic neutron
   scattering, the RIXS cross section changes only moderately over the
   entire Brillouin zone, revealing high sensitivity also at small momentum
   transfers, allowing determination of the two-triplon energy gap as 100
   +/- 30 meV. Our results are backed by calculations within an effective
   Hubbard model for a finite-size cluster, and confirm that optical
   selection rules are obeyed for excitations from this spherically
   symmetric quantum spin-liquid ground state.}},
Publisher = {{AMER PHYSICAL SOC}},
Address = {{ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Schlappa, J (Corresponding Author), Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
   Schlappa, J.; Schmitt, T.; Vernay, F.; Strocov, V. N.; Thielemann, B.; Mesot, J.; Delley, B.; Patthey, L., Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
   Ilakovac, V., Univ Paris 06, CNRS, LCP MR, UMR 7614, Paris, France.
   Ilakovac, V., Univ Cergy Pontoise, Dept Phys, F-95000 Cergy Pontoise, France.
   Thielemann, B.; Mesot, J., ETH, Neutron Scattering Lab, CH-5232 Villigen, Switzerland.
   Ronnow, H. M.; Wang, X.; Mesot, J., Ecole Polytech Fed Lausanne, CH-1015 Lausanne, Switzerland.
   Vanishri, S.; Marin, C., CEA, DRFMC, SPSMS, INAC, F-38054 Grenoble 9, France.
   Piazzalunga, A.; Braicovich, L.; Ghiringhelli, G., Politecn Milan, CNR, INFM Coherentia Soft, Dip Fis, I-20133 Milan, Italy.}},
DOI = {{10.1103/PhysRevLett.103.047401}},
Article-Number = {{047401}},
ISSN = {{0031-9007}},
Keywords-Plus = {{ELECTRONIC-STRUCTURE; SUPERCONDUCTIVITY; CHARGE; DYNAMICS}},
Research-Areas = {{Physics}},
Web-of-Science-Categories  = {{Physics, Multidisciplinary}},
Author-Email = {{thorsten.schmitt@psi.ch}},
ResearcherID-Numbers = {{Ghiringhelli, Giacomo/D-1159-2014
   Schmitt, Thorsten/A-7025-2010
   Patthey, Luc/G-6130-2018
   Ronnow, Henrik M/A-4953-2009
   Delley, Bernard/E-1336-2014
   }},
ORCID-Numbers = {{Ghiringhelli, Giacomo/0000-0003-0867-7748
   Patthey, Luc/0000-0001-6101-8069
   Ronnow, Henrik M/0000-0002-8832-8865
   Delley, Bernard/0000-0002-7020-2869
   Vernay, Francois/0000-0003-3713-7724
   Braicovich, Lucio/0000-0001-6548-9140}},
Funding-Acknowledgement = {{Swiss NSFSwiss National Science Foundation (SNSF); Indo-FrenchFrench
   National Research Agency (ANR) {[}3408-4]}},
Funding-Text = {{This work was performed at the ADRESS beam line of the SLS (Paul
   Scherrer Institut) using the SAXES spectrometer developed jointly by
   Politecnico di Milano, SLS and EPFL. We gratefully acknowledge M. Kropf,
   J. Krempasky, and K. J. Zhou for their technical support, M. Grioni and
   C. Dallera for their contribution to commissioning of the SAXES
   spectrometer and C. Quitman for his critical reading of the manuscript.
   Work at the EPFL is supported by the Swiss NSF and work at CEA-Grenoble
   by the Indo-French project 3408-4.}},
Number-of-Cited-References = {{36}},
Times-Cited = {{85}},
Usage-Count-Last-180-days = {{1}},
Usage-Count-Since-2013 = {{35}},
Journal-ISO = {{Phys. Rev. Lett.}},
Doc-Delivery-Number = {{474TQ}},
Unique-ID = {{ISI:000268307400067}},
OA = {{Green Accepted}},
DA = {{2020-12-22}},
}