Doping-dependent precursor charge density wave correlations in La2-xBaxCuO4

ORAL

Abstract

Recently using resonant inelastic x-ray scattering (RIXS), we discovered, in La2-xBaxCuO4 x=0.125, precursor charge density wave (CDW) correlations that exist above the CDW transition temperature and observed that its wavevector varies with temperature and becomes unlocked from the spin wavevector [1]. This observation may help to reconcile the distinct doping-dependence of CDW wavevector in different cuprates families [1,2]. Here we show our new RIXS study that reveals the doping-dependent evolution of precursor CDW in La2-xBaxCuO4.
[1] H. Miao et al., PNAS 114, 12430-12435 (2017).
[2] H. Miao et al., Phys. Rev. X 8, 011008 (2018).

*This material is based upon work supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Early Career Award Program under Award No. 1047478. Work at Brookhaven National Laboratory was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Contract No. DE- SC0012704.

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Presenters

  • Hu Miao

    • BNL
    • Brookhaven National Laboratory
    • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory

Authors

  • Hu Miao

    • BNL
    • Brookhaven National Laboratory
    • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory

  • Giacomo Ghiringhelli

    • Politecnico di Milano
    • Dipartimento di Fisica, Politecnico di Milano

  • Mark Dean

    • Department of Condensed Matter Physics and Materials Science, Brookhaven National Laboratory
    • Department of Condensed Matter Physics and Materials Science, Upton, New York 11973, USA, Brookhaven National Laboratory
    • BNL
    • Brookhaven National Laboratory
    • Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory