نتایج جستجو برای: drude
تعداد نتایج: 1074 فیلتر نتایج به سال:
K. Guda,1 M. Sich,1 D. Sarkar,1 P. M. Walker,1 M. Durska,1 R. A. Bradley,1 D. M. Whittaker,1 M. S. Skolnick,1 E. A. Cerda-Méndez,2 P. V. Santos,2 K. Biermann,2 R. Hey,2 and D. N. Krizhanovskii1 1Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, United Kingdom 2Paul-Drude-Institut für Festkörperelektronik, Berlin, Germany (Received 13 November 2012; revised manuscri...
2014 The Bruggeman optical effective medium theory of the dielectric permeability 03B5e(03C9) of inhomogeneous media is analysed for metal-dielectric compounds in relation to the non metal-metal transition. The influence of the constituent-material parameters (free-electron parameters and bound-state polarization) on both the real and imaginary parts of 03B5e(03C9) is investigated in detail for...
This paper deals with the low-frequency scattering problem by a conducting object in a chiral medium. With boundary integral equation methods, we obtain the limit of the scattered eld, solution of the Drude-Born-Fedorov equations as frequency tends to zero. Making use of a Hodge decomposition of the tangent elds shows that the asymptotics strongly depend on the topological properties of the dom...
We show that in graphene epitaxially grown on SiC the Drude absorption is transformed into a strong terahertz plasmonic peak due to natural nanoscale inhomogeneities, such as substrate terraces and wrinkles. The excitation of the plasmon modifies dramatically the magneto-optical response and in particular the Faraday rotation. This makes graphene a unique playground for plasmon-controlled magne...
Infrared optical constants collected from the literature are tabulated. The data for the noble metals and Al, Pb, and W can be reasonably fit using the Drude model. It is shown that -epsilon1(omega) = epsilon2(omega) approximately omega(2)(p)/(2omega(2)(tau)) at the damping frequency omega = omega(tau). Also -epsilon1(omega(tau)) approximately - (1/2) epsilon1(0), where the plasma frequency is ...
The frequency-dependent conductivity is studied for the one-dimensional Hubbard model, using a selection rule, the Bethe ansatz, and symmetries associated with conservation laws. For densities where the system is metallic the absorption spectrum has two contributions, a Drude peak at omega = 0 separated by a pseudogap from a broad absorption band whose lower edge is characterized by a nonclassi...
A nonperturbative quantum dissipation theory is developed based on an optimal construction of biexponential Drude bath correlation function for its influence on the system dynamics. It is an advanced hierarchical quantum master equation approach, aiming at a numerically efficient non-Markovian quantum dissipation propagator, with the support of a convenient criterion to estimate in advance its ...
Starting from a string with a length equal to the electron mean free path and having a unit cell equal to the Compton length of the electron, we construct a Schwarzschild-like metric. We found that this metric has a surface horizon equal to that of the electron mean free path and its Bekenstein-like entropy is proportional to the number of squared unit cells contained in this spherical surface....
H.L. Liu1,∗, M. Quijada1,∗∗, D.B. Romero1,∗∗∗, D.B. Tanner1,#, A. Zibold1,◦, G.L. Carr2,§, H. Berger3, L. Forró3, L. Mihaly4, G. Cao5, Beom-Hoan O6, J.T. Markert6, J. P. Rice7, M. J. Burns8, and K.A. Delin8 1 Department of Physics, University of Florida, Gainesville, FL 32611-8440, USA 2 National Synchrotron Light Source, BNL, Upton, NY 11973, USA 3 Ecole Polytechnique Fédérale, 1015 Lausanne, ...
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