NMR signature of charge order in high Tc cuprates revisited

          @misc{ scivideos_PIRSA:17050084,
            doi = {10.48660/17050084},
            url = {https://pirsa.org/17050084},
            author = {Imai, Takashi},
            keywords = {Quantum Matter},
            language = {en},
            title = {NMR signature of charge order in high Tc cuprates revisited},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2017},
            month = {may},
            note = {PIRSA:17050084 see, \url{https://scivideos.org/index.php/pirsa/17050084}}
          }
          

Abstract

In 1999, A. W. Hunt et al. discovered that all the NMR anomalies detected at the charge density wave (CDW) order transition Tcharge ~ 60 K of nearly non-superconducting La1.48Nd0.4Sr0.12CuO4 are shared by superconducting La1.88Sr0.12CuO4 (Tc ~ 30K) [1]. The unexpected finding inevitably led us to conclude that charge order must exist even in the superconducting La2-xSrxCuO4, sending a shockwave in the high-Tc community [2]. Subsequent search of charge order peaks based on scattering techniques, however, failed to detect additional evidence for charge order until very recently. In view of the recent confirmation of charge order in many superconducting cuprates by X-ray diffraction techniques, we revisit the old problem of charge order using newer NMR techniques that have become available in recent years.