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| Creator | Title | Description | Subject | Date | ||
|---|---|---|---|---|---|---|
| 1 |
 | Mishchenko, Eugene | Effect of electron-electron interactions on the conductivity of clean graphene | Minimal conductivity of a single undoped graphene layer is known to be of the order of the conductance quantum, independent of the electron velocity. We show that this universality does not survive electron-electron interaction, which results in nontrivial frequency dependence. We begin with analyzi... | Optical conductivity; Perturbation theory | 2007-05 |
| 2 |
 | Mishchenko, Eugene | Minimal conductivity in graphene: interaction corrections and ultraviolet anomaly | Conductivity of a disorder-free intrinsic graphene is studied to the first order in the long-range Coulomb interaction and is found to be ? = ?0(1+0.01g), where g is the dimensionless ("fine structure") coupling constant. The calculations are performed using three different methods: i) electron pola... | Optical conductivity | 2008-07-01 |
| 3 |
 | Mishchenko, Eugene | Optical conductivity of a two-dimensional electron liquid with spin-orbit interaction | The interplay of electron-electron interactions and spin-orbit coupling leads to a new contribution to the homogeneous optical conductivity of the electron liquid. The latter is known to be insensitive to many-body effects for a conventional electron system with parabolic dispersion. The parabolic... | Optical conductivity; Electron liquid; Spin-orbit coupling | 2006-08 |
| 4 |
 | Mishchenko, Eugene | Plasmon attenuation and optical conductivity of a two-dimensional electron gas | In a ballistic two-dimensional electron gas, the Landau damping does not lead to plasmon attenuation in a broad interval of wave vectors q≤kF . Similarly, it does not contribute to the optical conductivity σ(ω,q) in a wide domain of its arguments, EF>ω>qvF , where EF , kF , and vF are, respec... | Optical conductivity; Plasmon-phonon conversion; Landau damping | 2004-05 |
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