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In a recent letter Chicanne {\em et al.} [1] reported the experimental observation of the electromagnetic local density of states LDOS established by gold nanostructures. The obtained images have been compared with combinations of partial…

Materials Science · Physics 2009-11-10 S. Savasta , O. Di Stefano , R. Girlanda , M. Pieruccini

Scanning Tunneling Spectroscopy (STS) is a unique technique to probe the local density of states (LDOS) at the atomic scale by measuring the tunneling conductance between a sharp tip and a sample surface. However, the technique suffers of…

The vortex state thermal and transport properties of the high T_c copper oxides can be understood in a d-wave gap model and are dominated by the extended quasiparticle states that exist along the nodal directions in momentum space. The…

Superconductivity · Physics 2009-10-31 E. Schachinger , J. P. Carbotte

We introduce a generalization of local density of states which is "windowed" with respect to position and energy, called the windowed local density of states (wLDOS). This definition generalizes the usual LDOS in the sense that the usual…

Mathematical Physics · Physics 2022-10-25 Terry A. Loring , Jianfeng Lu , Alexander B. Watson

While the influence of impurities on the local density of states (LDOS) in a metal is notoriously non-local due to interference effects, low order moments of the LDOS in general can be shown to depend only on the local structure of the…

Superconductivity · Physics 2009-11-11 R. Jamei , J. Robertson , E-A. Kim , A. Fang , A. Kapitulnik , S. A. Kivelson

We present the spin and orbitally resolved local density of states (LDOS) for a single Mn impurity and for two nearby Mn impurities in GaAs. The GaAs host is described by a sp^3 tight-binding Hamiltonian, and the Mn impurity is described by…

Materials Science · Physics 2007-05-23 Jian-Ming Tang , Michael E. Flatte'

The local density of states (LDOS) in finite quantum wires is calculated as a function of discrete energies and position along the wire. By using a combination of numerical density matrix renormalization group (DMRG) calculations and…

Strongly Correlated Electrons · Physics 2009-11-13 Imke Schneider , Alexander Struck , Michael Bortz , Sebastian Eggert

We study the local density of states (LDOS) in a finite photonic crystal, in particular in the frequency range of the band gap. We propose a new point of view on the band gap, which we consider to be the result of vacuum fluctuations in…

Optics · Physics 2014-01-17 Elahe Yeganegi , Ad Lagendijk , Allard P. Mosk , Willem L. Vos

We use a mean-field (Hartree-like) approach to study the conductance of a strongly localized electron system in two dimensions. We find a crossover between a regime where Coulomb interactions modify the conductance significantly to a regime…

Disordered Systems and Neural Networks · Physics 2015-05-14 Ariel Amir , Yuval Oreg , Yoseph Imry

In this paper, we investigate a local density of state (LDOS) in two-dimensional nano-structured superconductors. We solve the Bogoliubov-de Gennes equations self-consistently with the two-dimensional finite element method. In…

Superconductivity · Physics 2019-09-04 Saoto Fukui , Zhen Wang , Masaru Kato

In this work, we investigate the local density of states (LDOS) near a magnetic impurity in single-layer FeSe superconductors. The two-orbital model with spin-orbit coupling proposed in Ref. [{\emph{Phys. Rev. Lett.} \textbf{119}, 267001…

Strongly Correlated Electrons · Physics 2018-08-01 Liang Chen , Wei-Wei Zhao , Rong-Sheng Han

We study the effect of nonmagnetic impurities on the local density of states (LDOS) in s-wave superconductors. The quasiclassical equations of superconductivity are solved selfconsistently to show how LDOS evolves with impurity…

Superconductivity · Physics 2009-11-10 P. Miranovic , M. Ichioka , K. Machida

We propose in this article an unambiguous definition of the local density of electromagnetic states (LDOS) in a vacuum near an interface in an equilibrium situation at temperature $T$. We show that the LDOS depends only on the electric…

Optics · Physics 2009-11-10 K. Joulain , R. Carminati , J. -P Mulet , J. -J. Greffet

We consider scanning gate conductance microscopy of an open quantum dot that is connected to the conducting channel using the wave function description of the quantum transport and a finite difference approach. We discuss the information…

Mesoscale and Nanoscale Physics · Physics 2014-05-26 K. Kolasiński , B. Szafran

We simulate scanning probe imaging of the local density of states related to scattering Fermi level wave functions inside a resonant cavity. We calculate potential landscape within the cavity taking into account the Coulomb charge of the…

Mesoscale and Nanoscale Physics · Physics 2013-10-29 K. Kolasinski , B. Szafran

We study the relationship between the differential conductance and the local density of states in tight-binding tunnel junctions where the junction' geometry can be varied between the point-contact and the planar-contact limits. The…

Superconductivity · Physics 2011-10-13 C. Berthod , T. Giamarchi

In this paper we analyze, using scanning tunneling spectroscopy (STS), the local density of electronic states (LDOS) in nearly optimally doped BSCCO in zero field. We see both dispersive and non-dispersive spatial LDOS modulations as a…

Superconductivity · Physics 2009-11-10 A. Fang , C. Howald , N. Kaneko , M. Greven , A. Kapitulnik

We study the interaction driven localization transition, which a recent experiment in Ga_{1-x}Mn_xAs As has shown to come along with multifractal behavior of the local density of states (LDoS) and the intriguing persistence of critical…

Strongly Correlated Electrons · Physics 2014-01-21 M. Amini , V. E. Kravtsov , M. Mueller

We propose a method to probe the local density of states (LDOS) of atomic systems that provides both spatial and energy resolution. The method combines atomic and tunneling techniques to supply a simple, yet quantitative and operational,…

Mesoscale and Nanoscale Physics · Physics 2018-11-22 Daniel Gruss , Chih-Chun Chien , Julio Barreiro , Massimiliano Di Ventra , Michael Zwolak

We show that spin-polarized local density of states (LDOS) measurements can uniquely determine the chiral nature of topologically protected edge states surrounding a ferromagnetic island embedded in a conventional superconductor with…

Superconductivity · Physics 2018-04-18 Kristofer Björnson , Annica M. Black-Schaffer