Edge-Driven Phase Transitions in 2D Ice

Quantum Phase Transitions in 2d Quantum Liquids∗

Phase transitions in periodically driven macroscopic systems.

We study the large-time behavior of a class of periodically driven macroscopic systems. We find, for a certain range of the parameters of either the system or the driving fields, the time-averaged asymptotic behavior effectively is that of certain other equilibrium systems. We then illustrate with a few examples how the conventional knowledge of the equilibrium systems can be made use of in cho...

Universality in Voltage-driven Nonequilibrium Phase Transitions

We consider the non-equilibrium ferromagnetic transition of a mesoscopic sample of a resistive Stoner ferromagnet coupled to two paramagnetic leads. The transition is controlled by either the lead temperature T or the transport voltage V applied between the leads. We calculate the T and V dependence of the magnetization. For systems with a flat density of states we find as an exact result that ...

Phase transitions in driven lattice gases.

We have studied nonequilibrium lattice gases whose particles are driven by a field. The lattice is either a half-occupied square lattice or else the union of two energetically uncoupled ones. Monte Carlo simulations of the latter, which is always crossed by a dissipative particle current, show a tricritical point and a continuum of Ising-like critical points as the field is decreased, in additi...

Hot electron injection driven phase transitions

We report on a generalmechanism for photo-induced phase transitions. The process relies on the photo-injection of hot electrons from an adjacent metallic layer to trigger the structural dynamics of the materials of interest. This mechanism is demonstrated for the semiconductor-to-metal phase transition of VO2 using a 20 nm Au injection layer. The nature of the phase transition is demonstrated b...