Attila Virosztek

Charge-transfer fluctuation, d-wave superconductivity, and the B1g Raman phonon in cuprates

The Raman spectrum of the

Thermodynamics and optical conductivity of unconventional spin density waves

B_{1g}

Local density of states and Friedel oscillations in graphene

phonon in the superconducting cuprate materials is investigated theoretically in detail in both the normal and superconducting phases, and is contrasted with that of the

Multiband electronic Raman scattering in bilayer superconductors.

A_{1g}

Physical origin of the buckling in CuO2: Electron-phonon coupling and Raman spectra

phonon. A mechanism involving the charge transfer fluctuation between the two oxygen ions in the CuO

The angular-dependent magnetoresistance in α-(BEDT-TTF)2KHg(SCN)4

_2

Threshold electric field in unconventional density waves

plane coupled to the crystal field perpendicular to the plane is discussed and the resulting electron-phonon coupling is evaluated. Depending on the symmetry of the phonon the weight of different parts of the Fermi surface in the coupling is different. This provides the opportunity to obtain information on the superconducting gap function at certain parts of the Fermi surface. The lineshape of the phonon is then analyzed in detail both in the normal and superconducting states. The Fano lineshape is calculated in the normal state and the change of the linewidth with temperature below T

Unconventional Charge-Density Wave in the Organic Conductor α-(BEDT-TTF)2KHg(SCN)4

_{c}

Enhanced electron–phonon coupling and its irrelevence to high Tc superconductivity

is investigated for a

RECENT ADVANCES IN UNCONVENTIONAL DENSITY WAVES

d_{x^{2}-y^{2}}