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Related papers: A Non-equilibrium STM model for Kondo Resonance on…

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Using a large-N theory in combination with the Keldysh non-equilibrium Greens function formalism, we investigate the current, differential conductance, zero-frequency shot-noise and Fano factor as measured by scanning tunneling shot noise…

Strongly Correlated Electrons · Physics 2019-09-25 Sagen Cocklin , Dirk K. Morr

We propose a mechanism to use scanning tunneling microscopy (STM) for direct measurements of the two-electron singlet-triplet exchange splitting $J$ in diatomic molecular systems, unsing the coupling between the molecule and the substrate…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 J. Fransson , A. V. Balatsky

We study the Kondo effect of a single magnetic adatom on the surface of graphene. It was shown that the unique linear dispersion relation near the Dirac points in graphene makes it more easy to form the local magnetic moment, which simply…

Strongly Correlated Electrons · Physics 2015-06-04 Lin Li , Yang-Yang Ni , Yin Zhong , Tie-Feng Fang , Hong-Gang Luo

The conduction electron density of states nearby single magnetic impurities, as measured recently by scanning tunneling microscopy (STM), is calculated, taking into account tunneling into conduction electron states only. The Kondo effect…

Strongly Correlated Electrons · Physics 2009-10-31 O. Újsághy , J. Kroha , L. Szunyogh , A. Zawadowski

Access to magnetic excitation spectra of single atoms deposited on surfaces is nowadays possible by means of low-temperature inelastic scanning tunneling spectroscopy. We present a first-principles method for the calculation of inelastic…

Strongly Correlated Electrons · Physics 2015-06-22 Benedikt Schweflinghaus , Manuel dos Santos Dias , Antonio T. Costa , Samir Lounis

The Kondo resonance is the spectral manifestation of the Kondo properties of the impurity Anderson model, and also plays a central role in the dynamical mean-field theory (DMFT) for correlated electron lattice systems. This article presents…

Strongly Correlated Electrons · Physics 2009-11-11 J. W. Allen

We study Kondo physics of a spin-$\frac{1}{2}$ impurity in electronic matter with strong spin-orbit interaction, which can be realized by depositing magnetic adatoms on the surface of a three-dimensional topological insulator. We show that…

Strongly Correlated Electrons · Physics 2015-12-10 L. Isaev , G. Ortiz , I. Vekhter

We consider transport through quantum dots with two tunneling paths. Interference between paths gives rise to Fano resonances exhibiting Kondo-like physics. In studying such quantum dots, we employ a generalized Anderson model which we…

Strongly Correlated Electrons · Physics 2007-05-23 Robert M. Konik

Motivated by recent STM experiments, we explore the magnetic field induced Kondo effect that takes place at symmetry protected level crossings in finite Co adatom chains. We argue that the effective two-level system realized at a level…

Strongly Correlated Electrons · Physics 2019-10-30 Bimla Danu , Fakher Assaad , Frédéric Mila

The Kondo effect observed in recent STM experiments on transport through CoPc and TBrPP-Co molecules adsorbed on Au(111) and Cu(111) surfaces, respectively, is discussed within the framework of a simple model (Phys. Rev. Lett. {\bf 97},…

Strongly Correlated Electrons · Physics 2009-11-13 J. M. Aguiar-Hualde , G. Chiappe , E. Louis , E. V. Anda

We revisit the theory of the Kondo effect observed by a scanning-tunneling microscope (STM) for transition-metal atoms (TMAs) on noble-metal surfaces, including $d$ and $s$ orbitals of the TMA, surface and bulk conduction states of the…

Mesoscale and Nanoscale Physics · Physics 2021-01-28 J. Fernandez , P. Roura-Bas , A. A. Aligia

A single molecule break junction device serves as a tunable model system for probing the many body Kondo state. The low-energy properties of this state are commonly described in terms of a Kondo model, where the response of the system to…

Strongly Correlated Electrons · Physics 2013-06-28 Gavin D. Scott , Douglas Natelson , Stefan Kirchner , Enrique Muñoz

A low-temperature scanning tunneling microscope was employed to study the differential conductance in an atomic junction formed by an adsorbed Co atom on a Cu(100) surface and a copper-covered tip. A zero-bias anomaly (ZBA) reveals spin…

Mesoscale and Nanoscale Physics · Physics 2018-03-07 Deung-Jang Choi , Paula Abufager , Laurent Limot , Nicolas Lorente

Local density of states and quasiparticle interference phenomena of Co/Sb(111) were investigated by scanning tunneling spectroscopy. A sharp peak observed near the Fermi energy is interpreted as a fingerprint of the conventional Kondo…

Mesoscale and Nanoscale Physics · Physics 2013-07-25 Limin She , Yinghui Yu , Gengyu Cao

We study the tunneling density of states (TDOS) in one-dimensional Mott insulators at energies below the charge gap. By employing nonlinear Luttinger liquid theory and density-matrix renormalization group (DMRG) simulations, we predict that…

Strongly Correlated Electrons · Physics 2026-01-06 Rodrigo G. Pereira , Bruno F. Marquez , Karen Hallberg , Tim Bauer , Reinhold Egger

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…

Mesoscale and Nanoscale Physics · Physics 2012-06-06 Maciej Misiorny , Ireneusz Weymann , Jozef Barnas

The quintessential description of Kondo physics in equilibrium is obtained within a scaling picture that shows the buildup of Kondo screening at low temperature. For the non-equilibrium Kondo model with a voltage bias the key new feature…

Strongly Correlated Electrons · Physics 2010-03-22 Peter Fritsch , Stefan Kehrein

We present an extension of the tunneling theory for scanning tunneling microcopy (STM) to include different types of vibrational-electronic couplings responsible for inelastic contributions to the tunnel current in the strong-coupling…

In the Kondo effect, a localized magnetic moment is screened by forming a correlated electron system with the surrounding conduction electrons of a non-magnetic host. Spin S=1/2 Kondo systems have been investigated extensively in theory and…

The effect of a magnetic field on the equilibrium spectral and transport properties of a single-molecule junction is studied using the numerical renormalization group method. The molecule is described by the Anderson-Holstein model in which…

Strongly Correlated Electrons · Physics 2007-05-23 P. S. Cornaglia , D. R. Grempel