Kondo Resonance in the Presence of Spin-Polarized Currents

Abstract

We propose an improved method of the equation of motion approach to study the Kondo problem in spin-dependent non-equilibrium conditions. We find that the previously introduced additional renormalization for non-equilibrium Kondo effects is not required when we use a proper decoupling scheme. Our improved formulation is then applied to address the spin-split Kondo peaks when a spin current injects into a Kondo system.

arXiv comment4+ pages, 4 eps figures

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Cited by in corpus (14)

• Thermo-spin effects in a quantum dot connected to ferromagnetic leads
• Non-equilibrium spin-current detection with a single Kondo impurity
• Kondo screening of Andreev bound states in an N-QD-S system
• Transport through a quantum dot subject to spin and charge bias: Kondo regime
• Validity of Equation-of-Motion Approach to Kondo Problem in the Large-$N$ limit
• Time-dependent single electron tunneling through a shuttling nano-island
• Nonequilibrium Kondo effect by equilibrium numerical renormalization group method: The hybrid Anderson model subject to a finite spin bias
• Electronic Green's functions in a T-shaped multi-quantum dot system
• Spin-dependent beating patterns in thermoelectric properties: Filtering the carriers of the heat flux in a Kondo adatom system
• Out-of-equilibrium Kondo Effect in a Quantum Dot: Interplay of Magnetic Field and Spin Accumulation
• The graphene sheet versus the 2DEG: a relativistic Fano spin-filter via STM and AFM tips
• Coulomb-modified Fano interference in a double quantum dot Aharonov-Bohm ring
• Non-Zeeman splitting for a spin-resolved STM with a Kondo adatom in a spin-polarized two-dimensional electron gas
• Dimensionality effects in the LDOS of ferromagnetic hosts probed via STM: spin-polarized quantum beats and spin filtering