Magnetic and transport anisotropy of electron-doped Nd2-xCexCuO4+? with oxygen nonstoichiometric disorder

The mass magnetic susceptibility and resistivity of epitaxial films with different orientations of the c - axis of electron-doped Nd2-xCexCuO4+delta/SrTiO3 at different cerium concentrations and oxygen content were investigated. It was found the strong anisotropy of resistivity and the mass magnetic susceptibility at H = 100 Oe that is associated with the appearance of excess oxygen atoms between the conducting planes CuO2. An increase in the content of nonstoichiometric oxygen leads to an increase in the mass magnetic susceptibility and the destruction of the superconducting state.

Automated summary

This study investigated the mass magnetic susceptibility and resistivity of electron-doped Nd2-xCexCuO4+delta/SrTiO3 epitaxial films with different orientations of the c-axis at various cerium concentrations and oxygen content. It was found that there was a strong anisotropy in resistivity and mass magnetic susceptibility at an applied magnetic field of 100 Oe, which was associated with the presence of excess oxygen atoms between the conducting planes CuO2. An increase in nonstoichiometric oxygen content resulted in an increase in mass magnetic susceptibility and the destruction of the superconducting state.