title: Quantum Hall effects in layered disordered superconductors.
abstract: Layered singlet paired superconductors with disorder and broken time reversal symmetry are studied, demonstrating a phase diagram with charge-spin separation in transport. In terms of the average intergrain transmission and the interlayer tunneling we find quantum Hall phases with spin Hall coefficients of sigma(spin)(xy)=0,2 separated by a spin metal phase. We identify a spin metal-insulator localization exponent as well as a spin conductivity exponent of approximately 0.96. In the presence of a Zeeman term an additional sigma(spin)(xy)=1 phase appears.
authors.affiliation: Negev Academic College of Engineering, Beer-Sheva 84100, Israel.
authors.forename: V
authors.initials: V
authors.lastname: Kagalovsky
authors.forename: B
authors.initials: B
authors.lastname: Horovitz
authors.forename: Y
authors.initials: Y
authors.lastname: Avishai