Publikationsdatum:
2017-07-01
Beschreibung:
Author(s): C. Collignon, S. Badoux, S. A. A. Afshar, B. Michon, F. Laliberté, O. Cyr-Choinière, J.-S. Zhou, S. Licciardello, S. Wiedmann, N. Doiron-Leyraud, and Louis Taillefer After two decades of intense investigation, the pseudogap phase of cuprate superconductors still remains a puzzle. The authors explore it by measuring the electrical resistivity and Hall coefficient of the cuprate Nd-LSCO in high magnetic fields for closely spaced doping rates across the pseudogap critical point. They report two main observations. First, both types of measurement indicate a drop of carrier density from 1+ p to p upon entering the pseudogap phase; the process is best characterized as a crossover as a function of temperature at fixed doping and as a transition as a function of doping at zero temperature. Second, the mobility is unaffected by the transition. These findings, quantitively consistent with the cases of YBCO and LSCO, appear to be a universal signature of the pseudogap. [Phys. Rev. B 95, 224517] Published Thu Jun 29, 2017
Schlagwort(e):
Superfluidity and superconductivity
Print ISSN:
1098-0121
Digitale ISSN:
1095-3795
Thema:
Physik
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