Temperature-dependence of spin-polarized transport in ferromagnet / unconventional superconductor junctions

Abstract

Tunneling conductance in ferromagnet / unconventional superconductor junctions is studied theoretically as a function of temperatures and spin-polarization in feromagnets. In d-wave superconductor junctions, the existence of a zero-energy Andreev bound state drastically affects the temperature-dependence of the zero-bias conductance (ZBC). In p-wave triplet superconductor junctions, numerical results show a wide variety in temperature-dependence of the ZBC depending on the direction of the magnetic moment in ferromagnets and the pairing symmetry in superconductors such as $p_x$, $p_y$ and $p_x+i{p}_y$-wave pair potential. The last one is a promising symmetry of Sr${}_2$RuO${}_4$. From these characteristic features in the conductance, we may obtain the information about the degree of spin-polarization in ferromagnets and the direction of the $d$-vector in triplet superconductors.

References in corpus (27)

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• Spin current in ferromagnet/insulator/superconductor junctions
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• Spin polarized tunneling in ferromagnet/unconventional superconductor junctions
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• Theory of Spin polarized Tunneling in Superconducting Sr2RuO4
• Theory of magnetotunneling spectroscopy in spin triplet p-wave superconductors
• Influences of broken time-reversal symmetry on the d.c. Josephson effects in d-wave superconductors
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• Parity-sensitive measurements based on ferromagnet/superconductor tunneling junctions
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Cited by in corpus (36)

• Topology of Andreev Bound States with Flat Dispersion
• Andreev reflection at the altermagnet-superconductor interface
• 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
• A phenomenological theory of zero-energy Andreev resonant states
• Charge transport in two dimensional electron gas/superconductor junctions with Rashba spin-orbit coupling
• Interfacial Spin-Orbit Coupling: New Platform for Superconducting Spintronics
• Resonant proximity effect in normal metal / diffusive ferromagnet / superconductor junctions
• Theory of Tunneling Spectroscopy in Unconventional $p$-wave Magnet-Superconductor Hybrid Structures
• Tunneling Spectra of Skutterudite PrOs_4Sb_{12}
• Spontaneous spin current due to triplet superconductor--ferromagnet interfaces
• Charge and spin supercurrents in triplet superconductor--ferromagnet--singlet superconductor Josephson junctions
• Transport across a junction of topological insulators and a superconductor
• Tunneling conductance of ferromagnet/noncentrosymmetric superconductor junctions
• Orientation-dependent transport in junctions formed by $d$-wave altermagnets and $d$-wave superconductors
• Switch effect and $0$-$\pi$ transition in Ising superconductor Josephson junctions
• Anomalous Nonlocal Conductance as a Fingerprint of Chiral Majorana Edge States
• Thermoelectric detection of Andreev states in unconventional superconductors
• Theory of tunneling conductance of anomalous Rashba metal / superconductor junctions
• Spin-polarized proximity effect in superconducting junctions
• Zero-bias conductance peak splitting due to multiband effect in tunneling spectroscopy
• Theory of tunneling spectroscopy of normal metal/ferromagnet/spin-triplet superconductor junctions
• Specular Andreev reflection and its detection
• Spin-valley dependent double Andreev reflections in the proximitized graphene/superconductor junction
• Spin susceptibility for orbital-singlet Cooper pair in the three-dimensional Sr${}_2$RuO${}_4$ superconductor
• Point Contact Spectra on YBa${}_2$Cu${}_3$O${}_{7-x}$/La${}_{0.7}$Ca${}_{0.3}$MnO${}_3$ bilayers
• Anomalous inverse proximity effect in unconventional-superconductor junctions
• Josephson effect between triplet superconductors through a ferromagnetic barrier of finite width
• Tunneling conductance in superconducting junctions with $p$-wave unconventional magnets breaking time-reversal symmetry
• Tunnelling conductance of $d+ip$-wave superconductor
• Symmetry analysis of transport properties in helical superconductor junctions
• Andreev bound states in normal and ferromagnet/high-Tc superconducting tunnel junctions
• Josephson effect in spin-singlet superconductor/ferromagnetic insulator/spin-triplet superconductor junctions with helical $p$-wave states
• Ferromagnetic features on zero-bias conductance peaks in ferromagnet/insulator/superconductor junction
• Theory of charge transport in ferromagnetic semiconductor/s-wave superconductor junction
• Resolving the order parameter of High-T${}_c$ Superconductors through quantum pumping spectroscopy