Normal-state magnetotransport in La_{1.905}Ba_{0.095}CuO_{4} single crystals

TL;DR

This study investigates the magnetotransport properties of La_{1.905}Ba_{0.095}CuO_{4} single crystals in the normal state, revealing that the structural transition to the LTT phase does not significantly alter electronic transport behaviors.

Contribution

It provides detailed measurements showing that the LTT phase transition does not cause immediate changes in electronic transport properties in this cuprate superconductor.

Findings

No sudden change in resistivity or Hall coefficient at the LTT transition

Magnetoresistance remains unaffected by the structural phase change

Electronic state stability across the LTT phase transition

Abstract

The normal-state magnetotransport properties of La_{2-x}Ba_{x}CuO_{4} single crystals with x=0.095 are measured; at this composition, a structural transition to a low-temperature-tetragonal (LTT) phase occurs without suppression of superconductivity. None of the measured properties (in-plane and out-of-plane resistivity, magnetoresistance, and Hall coefficient) shows any sudden change at the LTT phase transition, indicating that the occurrence of the LTT phase does not necessarily cause an immediate change in the electronic state such as the charge-stripe stabilization.