Condensed Matter Theory Group

My group is primarily interested in the collective properties of low-dimensional condensed matter systems and electron transport in these systems.  To be specific, these days we are actively pursuing the investigation of electronic transport and collective excitations in graphene-based systems.

PUBLICATIONS

Magnetothermoelectric Transport in Modulated and Unmodulated Graphene, R. Nasir and K. Sabeeh, J. Phys.: Condens. Matter 23, 375301 (2011).

Temperature effects on the magnetoplasmon Spectrum of a Weakly Modulated Graphene monolayer, M. Tahir,  K. Sabeeh, , A. Mackinnon, J. Phys.: Condens. Matter 23, 425304 (2011).

Magnetotransport in a periodically modulated graphene monolayer, R. Nasir, K. Sabeeh, M. Tahir, Phys. Rev. B 81, 085402 (2010).

Spin-orbit interaction effects on the magnetoplasmon spectrum of modulated two-dimensional electron gas, M. Tahir, K. Sabeeh, Physica E 42, 1915-1919 (2010).

Thermodynamic properties of a weakly modulated graphene monolayer in a magnetic field, R. Nasir, M. A. Khan, M. Tahir and K. Sabeeh, J. Phys.: Condens. Matter 22, 025503 (2010).

The magnetoplasmon spectrum of a weakly modulated two-dimensional electron gas system, M. Tahir, K. Sabeeh, A. Mackinnon, J. Phys.: Condens. Matter 22, 015801 (2010).

Suppression of Weiss oscillations in the magnetoconductivity of modulated graphene monolayer, M. Tahir, K. Sabeeh, Int. J. Mod. Phys. B 23, 3445 (2009).

Chiral tunneling through time-periodic potential in monolayer graphene, M. Ahsan Zeb, K. Sabeeh, M. Tahir, Phys. Rev. B 78, 165420 (2008).

Inter-band magnetoplasmons in mono- and bilayer graphene, M. Tahir and K. Sabeeh, J. Phys.: Condens. Matter 20, 425202 (2008).

Quantum Transport of Dirac Electrons in Graphene in the presence of a Spatially Modulated Magnetic Field, M. Tahir, K. Sabeeh, Phys. Rev. B 77, 195421 (2008).

Theory of Weiss Oscillations in the Magnetoplasmon Spectrum of Dirac Electrons in Graphene, M. Tahir, K. Sabeeh, Phys. Rev. B 76, 195416 (2007).

Electric Field Effects on Motion of a Charged Particle Through a Saddle Potential in a Magnetic Field, V. Fessatidis, N. J. M. Horing, K. Sabeeh, A. Yar and M. L. Glasser, Phys. Rev. B 76, 115328 (2007).

Weiss Oscillations in the Electronic Stricture of Modulated Graphene, M. Tahir, K. Sabeeh, A. Mackinnon, J. Phys.: Condens. Matter 19, 406226 (2007).

Electron Tunnelling/Scattering through a QPC Saddle Potential in Crossed Electric and Magnetic Fields, V. Fessatidis, N. J. M. Horing, K. Sabeeh, A. Yar and M. L. Glasser,  Phys. Stat. sol. (c) 4,  301 (2007).

Enhanced Superconductivity in Cu_0.5Tl_0.5Ba₂Ca_n-1-y Be_y Cu_nO_2n+4-d (n=3,4 and y=0.7,1.5,1.7,2.0) System with Oxygen Doping, Nawazish A. Khan, G. Husnain, K. Sabeeh, Journal of Physics and Chemistry of Solids 67, 1841 (2006).

Collective Excitations Spectrum of a Density Modulated Quasi One-Dimensional Electron Gas in a Magnetic Field, K. Sabeeh and M. Tahir, Phys. Rev. B 71, 035325 (2005).

XPS Studies of Cu_1-xTl_xBa₂Ca₂Cu₃O_10-y Superconductor Thin Films, Nawazish A. Khan, A.A. Khurram, K.Sabeeh, Azam Iraji-zad, M. M. Ahadian, Physica C 433, 21-27 (2005).

Longitudinal Dielectric Behavior of a Harmonically Bound Two-Dimensional Electron Gas in a Uniform Magnetic Field, K. Sabeeh, N. J. M. Horing, V. Fessatidis, Physica E 22, 843-851 (2004).

Phonon  Modes of Cu_1-xTl_x –1234 Superconductor Thin Films, Nawazish A. Khan and K. Sabeeh, Physica B 349, 156-158 (2004).

The Study of Phonon Modes of Cu_1-xTl_xBa₂Ca₃Cu₄O_12-y Superconductor Thin Films by FTIR Absorption Spectroscopy, Nawazish A. Khan, M. Mumtaz, K. Sabeeh, M. I. A. Khan, Mushtaq Ahmed, Physica C 407, 103-114 (2004).

Retarded Green’s function for an electron in a parabolic quantum dot subject to a constant uniform magnetic field and an electric field of arbitrary time dependence and orientation, V. Fessatidis, K. Sabeeh and Norman J. M. Horing, Phil. Mag. B 79, 77 (1999).

Schrodinger Green’s function for an electron in a rotating coordinate system with an axial magnetic field, V. Fessatidis, K. Sabeeh and Norman J. M. Horing, Phys. Lett. A 246, 459 (1998).

2D Saddle Potential Schrodinger Green’s function in the presence of an arbitrary time-dependent Electric field, K. Sabeeh and Norman J. M. Horing, Mod. Phys. Lett. B 11, 1193 (1997).