Intrinsic Hall response of the CuO2 planes in a chain-plane-composite system of YBa2Cu3Oy

TL;DR

This study isolates the intrinsic Hall response of CuO$_2$ planes in YBa$_2$Cu$_3$O$_y$ by analyzing transport measurements, revealing the genuine Hall effect unaffected by Cu-O chain conduction or anisotropy.

Contribution

It introduces a method to extract the intrinsic Hall conductivity and Hall angle of CuO$_2$ planes in YBa$_2$Cu$_3$O$_y$, independent of chain conduction effects.

Findings

Intrinsic Hall response of CuO$_2$ planes can be isolated.

Hall conductivity and Hall angle are extractable regardless of chain conduction.

Provides a clearer understanding of the fundamental Hall effect in cuprate planes.

Abstract

The Hall coefficient is measured in YBa$_2$Cu$_3$O$_y$ untwinned single crystals for a wide range of doping. We show that the Hall conductivity and the Hall angle of the {\it CuO$_2$ planes} in YBa$_2$Cu$_3$O$_y$ can be extracted from measurable transport properties regardless of the conduction of the Cu-O chains nor the in-plane anisotropy of the CuO$_2$ planes. The present analysis allows us to discuss the genuine Hall effect in the CuO$_2$ planes alone in YBa$_2$Cu$_3$O$_y$ without any complications due to the Cu-O chains.