Investigation of the anisotropy of dissipation processes in single crystal of Yba2Cu3O7-d system

TL;DR

This study investigates the directional dependence of energy dissipation in single crystals of Yba2Cu3O7-d superconductors, suggesting the presence of dx2-y2 symmetry in their order parameter.

Contribution

It provides experimental evidence of anisotropic dissipation processes, supporting the dx2-y2 symmetry hypothesis in high-temperature superconductors.

Findings

Anisotropy of energy losses observed in the mixed state.

Supports the dx2-y2 symmetry of the order parameter.

Uses contactless mechanical measurement methods.

Abstract

By means of contactless mechanical method of the measurement of energy losses in superconductors, the anisotropy of dissipation processes has been studied in single crystal high-temperature layered superconductors of Yba2Cu3O7-d system, being in mixed state. The observed anisotropy of energy losses indicates the possibility of the existence of the symmetry of order parameter of dx2-y2 type in these single crystals.