Femtosecond Dynamics of Momentum-Dependent Magnetic Excitations from Resonant Inelastic X-Ray Scattering in CaCu2O3

@article{ ISI:000339490700016,
Author = {Bisogni, Valentina and Kourtis, Stefanos and Monney, Claude and Zhou,
   Kejin and Kraus, Roberto and Sekar, Chinnathambi and Strocov, Vladimir
   and Buechner, Bernd and van den Brink, Jeroen and Braicovich, Lucio and
   Schmitt, Thorsten and Daghofer, Maria and Geck, Jochen},
Title = {{Femtosecond Dynamics of Momentum-Dependent Magnetic Excitations from
   Resonant Inelastic X-Ray Scattering in CaCu2O3}},
Journal = {{PHYSICAL REVIEW LETTERS}},
Year = {{2014}},
Volume = {{112}},
Number = {{14}},
Month = {{APR 7}},
Abstract = {{Taking spinon excitations in the quantum antiferromagnet CaCu2O3 as an
   example, we demonstrate that femtosecond dynamics of magnetic electronic
   excitations can be probed by direct resonant inelastic x-ray scattering
   (RIXS). To this end, we isolate the contributions of single and double
   spin-flip excitations in experimental RIXS spectra, identify the
   physical mechanisms that cause them, and determine their respective time
   scales. By comparing theory and experiment, we find that double spin
   flips need a finite amount of time to be generated, rendering them
   sensitive to the core-hole lifetime, whereas single spin flips are, to a
   very good approximation, independent of it. This shows that RIXS can
   grant access to time-domain dynamics of excitations and illustrates how
   RIXS experiments can distinguish between excitations in correlated
   electron systems based on their different time dependence.}},
Publisher = {{AMER PHYSICAL SOC}},
Address = {{ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA}},
Type = {{Article}},
Language = {{English}},
Affiliation = {{Bisogni, V (Corresponding Author), Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY 11973 USA.
   Bisogni, Valentina; Kourtis, Stefanos; Kraus, Roberto; Sekar, Chinnathambi; Buechner, Bernd; van den Brink, Jeroen; Daghofer, Maria; Geck, Jochen, Leibniz Inst Solid State & Mat Res IFW Dresden, D-01069 Dresden, Germany.
   Bisogni, Valentina; Monney, Claude; Zhou, Kejin; Strocov, Vladimir; Schmitt, Thorsten, Paul Scherrer Inst, Res Dept Synchrotron Radiat & Nanotechnol, CH-5232 Villigen, Switzerland.
   Monney, Claude, Max Planck Gesell, Fritz Haber Inst, D-14195 Berlin, Germany.
   Buechner, Bernd; van den Brink, Jeroen, Tech Univ Dresden, Dept Phys, D-1062 Dresden, Germany.
   Braicovich, Lucio, CNR, SPIN, CNISM, I-20133 Milan, Italy.
   Braicovich, Lucio, Politecn Milan, Dipartimento Fis, I-20133 Milan, Italy.}},
DOI = {{10.1103/PhysRevLett.112.147401}},
Article-Number = {{147401}},
ISSN = {{0031-9007}},
EISSN = {{1079-7114}},
Keywords-Plus = {{LEVEL PHOTOEMISSION SPECTRA; CHARGE-TRANSFER; CU; PHOTOELECTRON; 2P;
   SPECTROSCOPY; LA2CUO4; AUGER}},
Research-Areas = {{Physics}},
Web-of-Science-Categories  = {{Physics, Multidisciplinary}},
Author-Email = {{bisogni@bnl.gov}},
ResearcherID-Numbers = {{Monney, Claude/C-5553-2011
   Buchner, Bernd/E-2437-2016
   van den Brink, Jeroen/E-5670-2011
   Daghofer, Maria/C-5762-2008
   Kourtis, Stefanos/AAA-5963-2019
   van den Brink, Jeroen/Y-3931-2019
   Schmitt, Thorsten/A-7025-2010
   Daghofer, Maria/P-4245-2019
   }},
ORCID-Numbers = {{Monney, Claude/0000-0003-3496-1435
   Buchner, Bernd/0000-0002-3886-2680
   van den Brink, Jeroen/0000-0001-6594-9610
   Daghofer, Maria/0000-0001-9434-8937
   Kourtis, Stefanos/0000-0002-9187-8067
   Daghofer, Maria/0000-0001-9434-8937
   Braicovich, Lucio/0000-0001-6548-9140}},
Funding-Acknowledgement = {{Swiss National Science Foundation and its National Centre of Competence
   in Research MaNEP; European CommunityEuropean Community (EC) {[}290605];
   Emmy-Noether ProgramGerman Research Foundation (DFG) {[}GE1647/2-1, DA
   1235/1-1]; Deutscher Akademischer Austauschdienst (DAAD)Deutscher
   Akademischer Austausch Dienst (DAAD)}},
Funding-Text = {{We acknowledge fruitful discussions with K. Wohlfeld and S. Johnston.
   This work was performed at the ADRESS beam line of the Swiss Light
   Source using the SAXES instrument jointly built by Paul Scherrer
   Institut, Switzerland and Politecnico di Milano, Italy. This project was
   supported by the Swiss National Science Foundation and its National
   Centre of Competence in Research MaNEP. The research leading to these
   results has received funding from the European Community's Seventh
   Framework Programme (No. FP7/2007-2013) under Grant No. 290605
   (PSIFELLOW/COFUND). We gratefully acknowledge financial support through
   the Emmy-Noether Program (V. B., R. K., and J. G. under Grant No.
   GE1647/2-1, M. D. and S. K. under Grant No. DA 1235/1-1). V. B. also
   acknowledges the financial support of Deutscher Akademischer
   Austauschdienst (DAAD).}},
Number-of-Cited-References = {{48}},
Times-Cited = {{13}},
Usage-Count-Last-180-days = {{2}},
Usage-Count-Since-2013 = {{44}},
Journal-ISO = {{Phys. Rev. Lett.}},
Doc-Delivery-Number = {{AL9VL}},
Unique-ID = {{ISI:000339490700016}},
OA = {{Green Published}},
DA = {{2020-12-22}},
}