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Impurity-induced triple point fermions in twisted bilayer graphene
(2019-06-10)
Triple point fermions are elusive electronic excitations that generalize Dirac and Weyl modes beyond the conventional high-energy paradigm. Yet, finding real materials naturally hosting these excitations at the Fermi energy ...
Impurity modes and wave scattering in discrete chains with nonlinear defect states
(ELSEVIER, 2006-01-30)
We study the properties of localized impurity modes and the transmission of plane waves across a general nonlinear impurity embedded in an infinite one-dimensional linear chain. Using the formalism of the lattice Green ...
Nonlinear impurity in a square lattice
(1999)
We use the Green’s-function formalism for an exact, numerical calculation of the stationary states of an electron propagating in a square lattice in the presence of a single, Holstein-type, impurity of arbitrary nonlinearity ...
Impurity-induced triple point fermions in twisted bilayer graphene
(Amer Physical Soc, 2019-06-10)
Triple point fermions are elusive electronic excitations that generalize Dirac and Weyl modes beyond the conventional high-energy paradigm. Yet, finding real materials naturally hosting these excitations at the Fermi energy ...
Capillary electrophoretic enantioselective determination of zopiclone and its impurities
(WILEY-BLACKWELLHOBOKEN, 2012)
A capillary electrophoretic enantioselective method with UV detection was developed and validated for the simultaneous quantification of zopiclone enantiomers and its impurities, zopiclone-N-oxide enantiomers, and ...
Quantitative comparison of Anderson impurity solvers applied to transport in quantum dots
(2020-01-01)
We study the single impurity Anderson model (SIAM) using the equations of motion method (EOM), the non-crossing approximation (NCA), the one-crossing approximation (OCA), and Wilson's numerical renormalization group (NRG). ...
Atomistic simulation of single crystal copper nanowires under tensile stress: Influence of silver impurities in the emission of dislocations
(2014)
The transition from elastic to plastic behaviour in single crystal copper nanowires under uniaxial tensile stress at different concentrations of silver (0.0-0.5 at.% Ag) and at different temperatures (0.1, 100, and 300 K) ...
Effects of a He-3 impurity on the Elastic Anomalies of He-4 at T=0
(Springer/plenum PublishersNew YorkEUA, 2013)
Electron Tunneling Excitation of a Coupled Two Impurity System
(Springer, 2018)
Kondo effects in individual atoms, molecular magnets or quantum dotshave received a lot of attention. Systems with two units, like double quantum dotsor two atoms, have also attracted some attention due to the interplay ...
Detection of chemical elements related to impurities leached from raw sugarcane: Use of laser-induced breakdown spectroscopy (LIBS) and chemometrics
(2018-03-01)
Impurities in raw sugarcane directly influence the quality of sugarcane juice by compromising its color and affecting the entire sugar manufacturing process. Therefore, the primary objective of this study was to identify ...