Tomography of pairing symmetry from magnetotunneling spectroscopy -- a case study for quasi-1D organic superconductors

Abstract

We propose that anisotropic $p$-, $d$-, or $f$-wave pairing symmetries can be distinguished from a tunneling spectroscopy in the presence of magnetic fields, which is exemplified here for a model organic superconductor ${(TMTSF)}_{2}X$. The shape of the Fermi surface (quasi-one-dimensional in this example) affects sensitively the pairing symmetry, which in turn affects the shape (U or V) of the gap along with the presence/absence of the zero-bias peak in the tunneling in a subtle manner. Yet, an application of a magnetic field enables us to identify the symmetry, which is interpreted as an effect of the Doppler shift in Andreev bound states.

arXiv comment4 papegs, 4 figures

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Cited by in corpus (30)

• Theory of enhanced proximity effect by mid gap Andreev resonant state in diffusive normal metal / triplet superconductor junctions
• Theory of charge transport in diffusive normal metal / unconventional singlet superconductor contacts
• Temperature-dependence of spin-polarized transport in ferromagnet / unconventional superconductor junctions
• A phenomenological theory of zero-energy Andreev resonant states
• Theory of Majorana zero modes in unconventional superconductors
• Fractional ac Josephson effect in unconventional superconductors
• Pairing and non-Fermi liquid behavior in partially flat-band systems
• Point-contact tunneling involving low-dimensional spin-triplet superconductors
• Tunneling Spectra of Skutterudite PrOs_4Sb_{12}
• Theory of surface Andreev bound states and tunneling spectroscopy in three-dimensional chiral superconductors
• Microscopic theory of tunneling spectroscopy in Sr${}_2$RuO${}_4$
• Tunneling spectroscopy of topological superconductors
• Majorana multipole response of topological superconductors
• Quasi-classical theory of tunneling spectroscopy in superconducting topological insulator
• Majorana multipole response: General theory and application to wallpaper groups
• Magnetotunneling spectroscopy as a probe for pairing symmetry determination in quasi-2D anisotropic superconductors
• Magnetic Response of Majorana Kramers Pairs Protected by Z2 Invariants
• Thermoelectric detection of Andreev states in unconventional superconductors
• Magnetic response of Majorana Kramers pairs with an order-two symmetry
• Zero-bias conductance peak splitting due to multiband effect in tunneling spectroscopy
• Pairing mechanism of unconventional superconductivity in doped Kane-Mele model
• Superconductivity and Antiferromagnetism in Quasi-one-dimensional Organic Conductors
• Pairing competition in a quasi-one-dimensional model of organic superconductors (TMTSF)${}_{2}X$ in magnetic field
• Cooper Pair Shape in Normal-metal/Superconductor Junctions
• F-wave versus P-wave Superconductivity in Organic Conductors
• Majorana multipole response with magnetic point group symmetry
• Possible anomalous Doppler shift effect in superconductor Sr${}_2$RuO${}_4$
• Josephson effect in quasi one-dimensional unconventional superconductors
• Majorana edge states and topological properties in 1D/2D Rashba semiconductor proximity coupled to iron-based superconductor
• Tunnelling in organic superconductors