Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Sarma A"'
Autor:
S. Das Sarma, DinhDuy Vu
Publikováno v:
Physical Review B. 101
A system of confined charged electrons interacting via the long-range Coulomb force can form a Wigner crystal due to their mutual repulsion. This happens when the potential energy of the system dominates over its kinetic energy, i.e., at low temperat
Publikováno v:
Physical Review B. 95
We calculate the temperature dependent long-range magnetic coupling in the presence of dilute concentrations of random magnetic impurities in chiral multilayer two-dimensional semimetals, i.e., undoped intrinsic multilayer graphene. Assuming a carrie
Publikováno v:
Physical Review B. 90
Monolayer graphene in a strong magnetic field exhibits quantum Hall states at filling fractions $\nu = 0$ and $\nu = \pm 1$ that are not explained within a picture of noninteracting electrons. We propose that these states arise from interaction-induc
Publikováno v:
Physical Review B. 90
We report direct observation of the development of long-range spatial intensity correlations and the growth of intensity fluctuations inside the random media. We fabricated quasi-two-dimensional disordered photonic structures and probed the light tra
Publikováno v:
Physical Review B. 87
Autor:
Qiuzi Li, S. Das Sarma
Publikováno v:
Physical Review B. 87
We adopt the GW approximation and random phase approximation to study finite temperature effects on the inelastic mean free path and quasiparticle lifetime by directly calculating the imaginary part of the finite temperature self-energy induced by el
Publikováno v:
Physical Review B. 86
We describe the robustness of an excitonic condensate in double layer graphene against layer density fluctuations and the associated charge inhomogeneity, and discuss the implications for observing the condensate under current experimental conditions
Publikováno v:
Physical Review B. 84
We present an interpretation of recent experimental measurements of $d\ensuremath{\mu}/dn$ in suspended bilayer graphene samples. We demonstrate that the data may be quantitatively described by assuming a spatially varying interlayer potential asymme
Publikováno v:
Physical Review B. 84
We theoretically study the transport properties of both monolayer and bilayer graphene in the presence of electron-hole puddles induced by charged impurities which are invariably present in the graphene environment. We calculate the graphene conducti
Publikováno v:
Physical Review B. 82
Collective excitations of coupled electron-phonon systems are calculated for both monolayer and bilayer graphene, taking into account the non-perturbative Coulomb coupling between electronic excitations in graphene and the substrate longitudinal opti