Two-dimensional quantum interference contributions to the magnetoresistance of Nd{2-x}Ce{x}CuO{4-d} single crystals

TL;DR

This study investigates two-dimensional weak localization effects in Nd{2-x}Ce{x}CuO{4-d} single crystals at low temperatures, analyzing magnetoresistance to estimate phase coherence and layer thickness.

Contribution

It provides new insights into 2D quantum interference effects in electron-doped cuprates and estimates key parameters like phase coherence time and layer thickness.

Findings

Identification of 2D weak localization effects at low temperatures.

Estimation of phase coherence time and effective layer thickness.

Analysis of magnetoresistance under different magnetic field orientations.

Abstract

The 2D weak localization effects at low temperatures T = (0.2-4.2)K have been investigated in nonsuperconducting sample Nd{1.88}Ce{0.12}CuO{4-d} and in the normal state of the superconducting sample Nd{1.82}Ce{0.18}CuO{4-d} for B>B_c2. The phase coherence time and the effective thickness $d$ of a conducting CuO_2 layer have been estimated by the fitting of 2D weak localization theory expressions to the magnetoresistivity data for the normal to plane and the in-plane magnetic fields.