Hiromi Kashiwaya

Edge states of Sr2RuO4 detected by in-plane tunneling spectroscopy.

Tunneling spectroscopy has been performed on Sr(2)RuO(4) searching for the edge states peculiar to topological superconductivity. Conductance spectra exhibit broad humps with three types of peak shape: domelike peak, split peak, and two-step peak. By comparing the experiments with predictions for unconventional superconductivity, these varieties are shown to originate from multiband chiral p-wave symmetry with weak anisotropy of pair amplitude. The broad hump in the conductance spectrum is a direct manifestation of the edge state due to chiral p-wave superconductivity.

Enhancement of electronic inhomogeneities due to out-of-plane disorder in Bi2 Sr2 Cu O6+δ superconductors observed by scanning tunneling spectroscopy

Nanoscale electronic inhomogeneity in optimally doped single-layer

C-axis critical current of a PrFeAsO0.7 single crystal

{\mathrm{Bi}}_{2}{\mathrm{Sr}}_{1.6}{L}_{0.4}\mathrm{Cu}{\mathrm{O}}_{6+\ensuremath{\delta}}

Switching Dynamics of Bi2Sr2CaCu2O8+δIntrinsic Josephson Junctions: Macroscopic Quantum Tunneling and Self-Heating Effect

, (

Experimental study of macroscopic quantum tunnelling in Bi2212 intrinsic Josephson junctions

L

Imaging of current density distributions with a Nb weak-link scanning nano-SQUID microscope

-Bi2201,

Tunneling spectroscopy of topological superconductors

L=\mathrm{La}

Inversion symmetry of Josephson current as test of chiral domain wall motion in Sr

and Gd) as well as bilayer

_{2}

{\mathrm{Bi}}_{2}{\mathrm{Sr}}_{2}\mathrm{Ca}{\mathrm{Cu}}_{2}{\mathrm{O}}_{8+\ensuremath{\delta}}

RuO

(Bi2212), superconductors has been investigated by the low-temperature scanning-tunneling-microscopy and spectroscopy. The inhomogeneous gap structures are observed above and below