Electron–phonon coupling in underdoped high-temperature superconductors

AS Mishchenko - Physics-Uspekhi, 2009 - iopscience.iop.org
Results indicating the important role of the electron–phonon coupling in high-temperature
superconductivity compounds are presented, with emphasis on its implications for angle …

Electrodynamics of the nodal metal state in weakly doped high- cuprates

YS Lee, K Segawa, ZQ Li, WJ Padilla, M Dumm… - Physical Review B …, 2005 - APS
We report on the detailed analysis of the infrared (IR) conductivity of two prototypical high-T
c systems Y Ba 2 Cu 3 O y and La 2− x Sr x Cu O 4 throughout the complex phase diagram …

Analogies of phonon anomalies and electronic gap features in the infrared response of SrCa x Cu24O41 and underdoped YBa2Cu3O

P Adamus, B Xu, P Marsik, A Dubroka… - Reports on Progress …, 2023 - iopscience.iop.org
Analogies of phonon anomalies and electronic gap features in the infrared response of Sr Ca x
Cu24O41 and underdoped YBa2Cu3O - IOPscience This site uses cookies. By continuing to …

Trapping of three-dimensional Holstein polarons by various impurities

H Ebrahimnejad, M Berciu - Physical Review B—Condensed Matter and …, 2012 - APS
We study the bound states of a three-dimensional Holstein polaron near various kinds of
single impurities, using the momentum-average approximation. We show that the electron …

Oxygen Superstructures Throughout the Phase Diagram of

J Strempfer, I Zegkinoglou, U Rütt, M v. Zimmermann… - Physical review …, 2004 - APS
The doping dependence of short-range lattice superstructures in (Y, C a) B a 2 C u 3 O 6+ x
has been studied with high-energy x-ray scattering. We observe diffuse features with a well …

Diagrammatic Monte Carlo method as applied to the polaron problems

AS Mishchenko - Physics-Uspekhi, 2005 - iopscience.iop.org
Numerical methods whereby exact solutions to the problem of a few particles interacting with
one another and with several bosonic excitation branches are presented. The diagrammatic …

Spin-density-wave-induced anomalies in the optical conductivity of FeAs, (, Sr, Ba) single-crystalline iron pnictides

A Charnukha, D Pröpper, TI Larkin, DL Sun, ZW Li… - Physical Review B …, 2013 - APS
We report the complex dielectric function of high-quality A Fe 2 As 2,(A= Ca, Sr, Ba) single
crystals with TN≈ 150 K, 200 K, and 138 K, respectively, determined by broadband …

Optical conductivity of a doped Mott insulator: The interplay between correlation and electron-phonon interaction

G De Filippis, V Cataudella, AS Mishchenko… - Physical Review B …, 2009 - APS
The optical conductivity (OC) of cuprates is studied theoretically in the low-density limit of the
tt′-J model taking into account the hole-lattice coupling. By developing a limited phonon …

Fingerprints of Mott–Hubbard physics in optical spectra of antiferromagnetic LaTiO3

NN Kovaleva - Journal of Alloys and Compounds, 2024 - Elsevier
Abstract Magnetic properties of Mott–Hubbard insulators are determined by superexchange
interactions mediated by the high-spin (HS) and low-spin (LS) intersite d–d charge …

Ward identity and optical conductivity sum rule in the -density wave state

L Benfatto, SG Sharapov, N Andrenacci, H Beck - Physical Review B …, 2005 - APS
We consider the role of the Ward identity in dealing with the transport properties of an
interacting system forming ad-wave modulated charge-density wave or staggered flux …