Scaling of the temperature dependent Hall effect in La2−xSrxCuO4

Abstract

A new aspect of the charge dynamics in layered metallic cuprates has been discovered in the study of the in-plane Hall coefficient (${\mathit{R}}_{\mathit{H}}$) in ${\mathrm{La}}_{2\mathrm{-}\mathit{x}}$ ${\mathrm{Sr}}_{\mathit{x}}$ ${\mathrm{CuO}}_{\mathit{x}}$ over a wide temeprature (4–500 K) and composition (0<x${\mathit{T}}^{\mathrm{*}}$. This form, followed for x≥0.15, has a characteristic temperature ${\mathit{T}}^{\mathrm{*}}$ which is high at the optimal composition (x=0.15) and decreases with increasing Sr concentration, similar to a temperature scale deduced from magnetic susceptibility.