Conductance Spectroscopy of Spin-triplet Superconductors

Abstract

We propose a novel experiment to identify the symmetry of superconductivity on the basis of theoretical results for differential conductance of a normal metal connected to a superconductor. The proximity effect from the superconductor modifies the conductance of the remote current depending remarkably on the pairing symmetry: spin-singlet or spin-triplet. The clear-cut difference in the conductance is explained by symmetry of Cooper pairs in a normal metal with respect to frequency. In the spin-triplet case, the anomalous transport is realized due to an odd-frequency symmetry of Cooper pairs.

4pages, 3 figures embedded

References in corpus (4)

• A spin triplet supercurrent through the half-metallic ferromagnet CrO2
• Theory of the proximity effect in junctions with unconventional superconductors
• Anomalous Josephson effect in p-wave dirty junctions
• Nonhomogeneous magnetization and superconductivity in superconductor-ferromagnet structures

Cited by in corpus (21)

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• Majorana Fermions and Odd-frequency Cooper Pairs in a Nano Wire
• Theory of Majorana zero modes in unconventional superconductors
• Odd-frequency superconducting states with different types of Meissner response: Problem of coexistence
• Theory of superconducting and magnetic proximity effect in S$\mid$F structures with inhomogeneous magnetization textures and spin-active interfaces
• Anomalous Proximity Effect and Theoretical Design for its Realization
• Thermopower of three-terminal topological superconducting systems
• Spontaneous spin accumulation in singlet-triplet Josephson junctions
• Anomalous surface states at interfaces in p-wave superconductors
• Consequences of bulk odd-frequency superconducting states for the classification of Cooper pairs
• Odd-frequency Cooper pair amplitude around a vortex core in a chiral p-wave superconductor in the quantum limit
• Quantum transport in a normal metal/odd-frequency superconductor junction
• Spin phase regulated spin Josephson supercurrent in topological superconductor
• Strong anomalous proximity effect from spin-singlet superconductors
• Effects of the phase coherence on the local density of states in superconducting proximity structures
• Electronic conduction and superconducting properties of CoSi${}_2$ films on silicon--an unconventional superconductor with technological potential
• Odd-frequency pairing due to Majorana and trivial Andreev bound states
• Light-induced Floquet spin-triplet Cooper pairs in unconventional magnets
• Anomalous proximity effect under Andreev and Majorana bound states
• Spin conductance in SNN junctions with non-centrosymmetric superconductors
• Quantifying the non-Abelian property of Andreev bound states in inhomogeneous Majorana nanowires