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Charge-charge, current-current and Raman correlation functions are derived in a consistent way using the unified response theory. The theory is based on the improved description of the conduction electron coupling to the external…

Strongly Correlated Electrons · Physics 2007-05-23 Ivan Kupcic , Slaven Barisic

Electron Raman scattering (ERS) is investigated in a parabolic semiconductor quantum wire in a transverse magnetic field neglecting by phonon-assisted transitions. The ERS cross-section is calculated as a function of a frequency shift and…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 F. M. Hashimzade , T. G. Ismailov , B. H. Mehdiyev , S. T. Pavlov

Superconductivity induced structures in the electronic Raman spectra of high-Tc superconductors are computed using the results of ab initio LDA-LMTO three-dimensional band structure calculations via numerical integrations of the mass…

Condensed Matter · Physics 2009-10-28 Thomas Strohm , Manuel Cardona

A consistent semiquantitative theoretical analysis of electronic Raman scattering from many-electron quantum dots under resonance excitation conditions has been performed. The theory is based on random-phase-approximation-like wave…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 Alain Delgado , Augusto Gonzalez , D. J. Lockwood

A theory for the effect of impurity scattering on electronic Raman scattering in unconventional superconductors is presented. The impurity dependence of the the spectra can be used to to distinguish between conventional (anisotropic…

Condensed Matter · Physics 2009-10-22 T. P. Devereaux

We investigate the electronic Raman scattering in pure, quasi-one dimensional conductors with density wave ground state. In particular, we develop the theory of light-scattering on spin and charge density waves, both conventional and…

Strongly Correlated Electrons · Physics 2009-11-10 András Ványolos , Attila Virosztek

A theory of electronic Raman scattering in nearly antiferromagnetic Fermi liquids is constructed using the phenomenological electron-electron interaction introduced by Millis, Monien, and Pines. The role of "hot spots" and their resulting…

Strongly Correlated Electrons · Physics 2009-10-30 T. P. Devereaux , A. P. Kampf

An important issue in the study of the iron-arsenic based superconductors is the symmetry of the superconducting gap, a problem complicated by multiple gaps on different Fermi surface sheets. Electronic Raman scattering is a flexible bulk…

Superconductivity · Physics 2010-10-06 G. R. Boyd , T. P. Devereaux , P. J. Hirschfeld , V. Mishra , D. J. Scalapino

A theory of electronic Raman scattering in nearly antiferromagnetic Fermi liquids is constructed using the phenomenological electron-electron interaction introduced by Millis, Monien, and Pines. The role of "hot spots" and their resulting…

Strongly Correlated Electrons · Physics 2009-10-30 T. P. Devereaux , A. P. Kampf

Pure electronic Raman spectra with no phonon structures superimposed to the electronic continuum, are reported, in optimally doped HgBa_{2}CaCu_{2}O_{6+\delta } single crystals (T_{c }=126 K). As a consequence, the spectra in the A_{1g },…

Superconductivity · Physics 2009-10-28 A. Sacuto , R. Combescot , N. Bontemps , P. Monod , V. Viallet , D. Colson

A theory of resonant Raman scattering spectroscopy of one dimensional electronic systems is developed on the assumptions that (i) the excitations of the one dimensional electronic system are described by the Luttinger Liquid model, (ii)…

Strongly Correlated Electrons · Physics 2016-08-31 D. -W. Wang , A. J. Millis , S. Das Sarma

Electronic Raman scattering in Tl-2201 has been investigated in order to test whether the scattering cross-section in high temperature superconductors depends on the number of CuO2-planes, i.e. sheets or specific details of the Fermi…

Condensed Matter · Physics 2009-10-28 L. V. Gasparov , P. Lemmens , M. Brinkmann , N. N. Kolesnikov , G. Guntherodt

We investigate the contribution of the low-energy electronic excitations towards the Raman spectrum of bilayer graphene for the incoming photon energy Omega >> 1eV. Starting with the four-band tight-binding model, we derive an effective…

Mesoscale and Nanoscale Physics · Physics 2010-08-17 M. Mucha-Kruczynski , O. Kashuba , V. I. Fal'ko

Electronic Raman scattering measurements have been performed on $HgBa_{2}Ca_{2}Cu_{3}O_{8+\delta} $ single crystals in the superconducting state. Pure electronic Raman spectra with no phonon structures hindering the analysis of the…

Superconductivity · Physics 2009-10-31 A. Sacuto , R. Combescot , N. Bontemps , C. A. Müller , V. Viallet , D. Colson

We report a symmetry resolved electronic Raman scattering (ERS) study of a bilayer graphene device under gate voltage. We show that the ERS continuum is dominated by interband chiral excitations of $A_{2}$ symmetry and displays a…

Mesoscale and Nanoscale Physics · Physics 2019-01-16 Elisa Riccardi , Oleksiy Kashuba , Maximilien Cazayous , Marie-Aude Méasson , Alain Sacuto , Yann Gallais

The band structure, intra- and interband scattering processes of the electrons at the surface of a bismuth-bilayer on Bi$_2$Se$_3$ have been experimentally investigated by low-temperature Fourier-transform scanning tunneling spectroscopy.…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 A. Eich , M. Michiardi , G. Bihlmayer , X. -G. Zhu , J. -L. Mi , Bo B. Iversen , R. Wiesendanger , Ph. Hofmann , A. A. Khajetoorians , J. Wiebe

In this paper, we review recent development in the theory of resonant inelastic light (Raman) scattering in one-dimensional electron systems. The particular systems we have in mind are electron doped GaAs based semiconductor quantum wire…

Strongly Correlated Electrons · Physics 2009-11-10 D. -W. Wang , A. J. Millis , S. Das Sarma

A gauge invariant theory for electronic Raman scattering for superconductors with anisotropic pairing symmetry is analyzed in detail. It is shown that Raman scattering in anisotropic superconductors provides a wealth of…

Condensed Matter · Physics 2009-10-22 T. P. Devereaux , D. Einzel

A theory for electronic Raman scattering in the cuprate superconductors is presented with a specific emphasis on the polarization dependence of the spectra which can infer the symmetry of the energy gap. Signatures of the effects of…

Superconductivity · Physics 2009-10-30 T. P. Devereaux , A. P. Kampf

The effect of grain boundaries and wrinkles on the electrical properties of polycrystalline graphene is pronounced. Here we investigate the stitching between grains of polycrystalline graphene, specifically, overlapping of layers at the…

Materials Science · Physics 2014-06-09 Rahul Rao , Neal Pierce , Avetik R. Harutyunyan
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