Interplay of the Kondo Effect and Spin-Polarized Transport in Magnetic Molecules, Adatoms and Quantum Dots

Abstract

We study the interplay of the Kondo effect and spin-polarized tunneling in a class of systems exhibiting uniaxial magnetic anisotropy, such as magnetic molecules, magnetic adatoms, or quantum dots coupled to a single localized magnetic moment. Using the numerical renormalization group method we calculate the spectral functions and linear conductance in the Kondo regime. We show that the exchange coupling between conducting electrons and localized magnetic core generally leads to suppression of the Kondo effect. We also predict a nontrivial dependence of the tunnel magnetoresistance on the strength of exchange coupling and on the anisotropy constant.

4 pages with 4 EPS figures (version as accepted for publication in Physical Review Letters)

References in corpus (11)

• The numerical renormalization group method for quantum impurity systems
• Mechanical Control of Spin States in Spin-1 Molecules and the Underscreened Kondo Effect
• Kondo effect in quantum dots coupled to ferromagnetic leads
• Electric Field Controlled Magnetic Anisotropy in a Single Molecule
• Berry Phase Oscillations of the Kondo Effect in Single-Molecule Magnets
• Kondo-transport spectroscopy of single molecule magnets
• Spin effects in transport through single-molecule magnets in the sequential and cotunneling regimes
• Berry-phase blockade in single-molecule magnets
• Kondo effect in single-molecule magnet transistors
• Spin-bias driven magnetization reversal and nondestructive detection in a single molecular magnet
• Spin Diode Behavior in Transport Through Single-Molecule Magnets

Cited by in corpus (22)

• Transport mirages in single-molecule devices
• The Influence of Magnetic Anisotropy on the Kondo Effect and Spin-Polarized Transport through Magnetic Molecules, Adatoms and Quantum Dots
• Memristive properties of single-molecule magnets
• A pertubative approach to the Kondo effect in magnetic atoms on nonmagnetic substrates
• Impact of the Rashba Spin Orbit Coupling on $f$-electron Materials
• Temperature dependence of electronic transport through molecular magnets in the Kondo regime
• A Quantum Approach of Meso-Magnet Dynamics with Spin Transfer Torque
• Transverse anisotropy effects on spin-resolved transport through large-spin molecules
• Spin Seebeck effect of correlated magnetic molecules
• Spin-resolved dynamical conductance of correlated large-spin magnetic molecules
• Kondo screening regimes of a quantum dot with a single Mn ion
• Spin-dependent beating patterns in thermoelectric properties: Filtering the carriers of the heat flux in a Kondo adatom system
• Dynamical spin accumulation in large-spin magnetic molecules
• Intrinsic spin-relaxation induced negative tunnel magnetoresistance in a single-molecule magnet
• Quantum turnstile operation of single-molecule magnets
• Anisotropic Kondo screening induced by spin-orbit coupling in quantum wires
• Tunneling anisotropic magnetoresistance in single-molecule magnet junctions
• Transport of spin-anisotropy without spin currents
• The graphene sheet versus the 2DEG: a relativistic Fano spin-filter via STM and AFM tips
• Non-Zeeman splitting for a spin-resolved STM with a Kondo adatom in a spin-polarized two-dimensional electron gas
• Time-dependent spintronic anisotropy in magnetic molecules
• Dimensionality effects in the LDOS of ferromagnetic hosts probed via STM: spin-polarized quantum beats and spin filtering