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Stripe glasses in ferromagnetic thin films
Alessandro Principi, Mikhail I. Katsnelson
Domain walls in magnetic multilayered systems can exhibit a very complex and fascinating behavior. For example, the magnetization of thin films of hard magnetic materials is in gen…
Quasiparticle Mass Enhancement and Fermi Surface Shape Modification in Oxide Two-Dimensional Electron Gases
John R. Tolsma, Alessandro Principi, Reza Asgari +2
We propose a model intended to qualitatively capture the electron-electron interaction physics of two-dimensional electron gases formed near transition-metal oxide heterojunctions…
Negative local resistance caused by viscous electron backflow in graphene
D. A. Bandurin, I. Torre, R. Krishna Kumar +10
Graphene hosts a unique electron system in which electron-phonon scattering is extremely weak but electron-electron collisions are sufficiently frequent to provide local equilibriu…
Bulk and shear viscosities of the 2D electron liquid in a doped graphene sheet
Alessandro Principi, Giovanni Vignale, Matteo Carrega +1
Hydrodynamic flow occurs in an electron liquid when the mean free path for electron-electron collisions is the shortest length scale in the problem. In this regime, transport is de…
Accessing phonon polaritons in hyperbolic crystals by ARPES
Andrea Tomadin, Alessandro Principi, Justin C. W. Song +2
Recently studied hyperbolic materials host unique phonon-polariton (PP) modes. The ultra-short wavelengths of these modes, which can be much smaller than those of conventional exci…
The intrinsic charge and spin conductivities of doped graphene in the Fermi-Liquid regime
Alessandro Principi, Giovanni Vignale
The experimental availability of ultra-high-mobility samples of graphene opens the possibility to realize and study experimentally the "hydrodynamic" regime of the electron liquid.…