Search Results - "Yada, Keiji"
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Crossed surface flat bands of Weyl semimetal superconductors
Published in Physical review letters (06-03-2015)“…It has been noted that certain surfaces of Weyl semimetals have bound states forming open Fermi arcs, which are never seen in typical metallic states. We show…”
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Theory of tunneling conductance and surface-state transition in superconducting topological insulators
Published in Physical review. B, Condensed matter and materials physics (24-05-2012)“…We develop a theory of the tunneling spectroscopy for superconducting topological insulators (STIs), where the surface Andreev bound states (SABSs) appear as…”
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Odd-frequency pairing in topological superconductivity in a one-dimensional magnetic chain
Published in Physical review. B, Condensed matter and materials physics (24-02-2015)“…A chain of magnetic atoms with noncollinear spin configuration on a superconductor is a promising new system that can host Majorana fermions (MFs). In this…”
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Surface electronic state of superconducting topological crystalline insulator
Published in Physical review. B, Condensed matter and materials physics (23-11-2015)“…We study the surface state of a doped topological crystalline insulator in the superconducting state. Motivated by Sn1-xInxTe, we consider fully gapped pair…”
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Bulk Electronic State of Superconducting Topological Insulator
Published in Journal of the Physical Society of Japan (01-04-2013)“…We study the electronic properties of a superconducting topological insulator whose parent material is a topological insulator. We calculate the temperature…”
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Theory of Tunneling Effect in 1D AIII-class Topological Insulator (Nanowire) Proximity Coupled with a Superconductor
Published in Journal of the Physical Society of Japan (15-05-2020)“…We study the tunneling effect in an AIII-class insulator proximity coupled with a spin-singlet s-wave superconductor, in which three phases are characterized…”
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Pairing Mechanism of Unconventional Superconductivity in Doped Kane–Mele Model
Published in Journal of the Physical Society of Japan (15-10-2016)Get full text
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Anomalous Josephson coupling and high-harmonics in non-centrosymmetric superconductors with S-wave spin-triplet pairing
Published in npj quantum materials (28-09-2022)“…We study the Josephson effects arising in junctions made of non-centrosymmetric superconductors with spin-triplet pairing having s -wave orbital-singlet…”
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Quasi-Classical Theory of Tunneling Spectroscopy in Superconducting Topological Insulator
Published in Journal of the Physical Society of Japan (01-06-2014)Get full text
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Theory of odd-frequency pairings on a quasi-one-dimensional lattice in the Hubbard model
Published in Physical review. B, Condensed matter and materials physics (06-05-2009)Get full text
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Theory of tunneling spectroscopy for chiral topological superconductors
Published in Physical review. B, Condensed matter and materials physics (12-11-2012)“…We study the charge conductance of an interface between a normal metal and a superconducting quantum anomalous Hall system, based on the recursive Green's…”
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Surface density of states and topological edge states in noncentrosymmetric superconductors
Published in Physical review. B, Condensed matter and materials physics (11-02-2011)Get full text
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Finite size effects of the surface states in a lattice model of topological insulator
Published in Physica. E, Low-dimensional systems & nanostructures (01-02-2012)“…Energy gap and wave function in thin films of topological insulator is studied, based on tight-binding model. It is revealed that thickness dependence of the…”
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Theory of Tunneling Spectroscopy of Multi-Band Superconductors
Published in Journal of the Physical Society of Japan (15-03-2013)“…We present the derivation of boundary conditions on a wave function at the normal metal/superconductor (N/S) interface by extending the tight-binding approach…”
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Topology of Andreev bound states with flat dispersion
Published in Physical review. B, Condensed matter and materials physics (23-06-2011)Get full text
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Josephson current in Fe-based superconducting junctions: Theory and experiment
Published in Physical review. B, Condensed matter and materials physics (02-06-2015)“…We present a theory of the dc Josephson effect in contacts between Fe-based and spin-singlet sub( delta )-wave superconductors. The method is based on the…”
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Anomalous Andreev bound state in noncentrosymmetric superconductors
Published in Physical review letters (27-08-2010)“…We study edge states of noncentrosymmetric superconductors where spin-singlet d-wave pairing mixes with spin-triplet p (or f)-wave one by spin-orbit coupling…”
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Theory of Tunneling Spectroscopy in Unconventional p -Wave Magnet-Superconductor Hybrid Structures
Published in Journal of the Physical Society of Japan (15-11-2024)“…We theoretically study the tunneling conductance of a junction consisting of a two-dimensional unconventional p-wave magnet (UPM) and a superconductor (SC) for…”
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Anomalous Josephson effect in d -wave superconductor junctions on a topological insulator surface
Published in Physical review. B, Condensed matter and materials physics (11-09-2015)Get full text
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