Correlation between scale-invariant normal-state resistivity and superconductivity in an electron-doped cuprate.

ABSTRACT: An understanding of the normal state in the high-temperature superconducting cuprates is crucial to the ultimate understanding of the long-standing problem of the origin of the superconductivity itself. This so-called "strange metal" state is thought to be associated with a quantum critical point (QCP) hidden beneath the superconductivity. In electron-doped cuprates-in contrast to hole-doped cuprates-it is possible to access the normal state at very low temperatures and low magnetic fields to study this putative QCP and to probe the T ➔ 0 K state of these materials. We report measurements of the low-temperature normal-state magnetoresistance (MR) of the n-type cuprate system La_2-x Ce _x CuO₄ and find that it is characterized by a linear-

SUBMITTER: Sarkar T 

PROVIDER: S-EPMC6524976 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature