Anisotropic microwave conductivity of cuprate superconductors in the presence of CuO chain-induced impurities

Zhi Wang; Shiping Feng

doi:10.1103/PhysRevB.80.174507

← Back to search

Anisotropic microwave conductivity of cuprate superconductors in the presence of CuO chain-induced impurities

Zhi Wang, Shiping Feng

DOI 10.1103/PhysRevB.80.174507 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

The anisotropy in the microwave conductivity of the ortho-II YBa2Cu3O6.50 is studied within the kinetic-energy driven superconducting mechanism. The ortho-II YBa2Cu3O6.50 is characterized by a periodic alternative of filled and empty b̂-axis CuO chains. By considering the CuO chain-induced extended anisotropy impurity scattering, the main features of the anisotropy in the microwave conductivity of the ortho-II YBa2Cu3O6.50 are reproduced based on the nodal approximation of the quasiparticle excitations and scattering processes, including the intensity and line shape of the energy and temperature dependences of the â-axis and b̂-axis microwave conductivities. Our results also confirm that the b̂-axis CuO chain-induced impurity is the main source of the anisotropy.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
YBa2Cu3O6.50 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown