dc.contributor.author	Li, Linjun	en
dc.contributor.committeechair	Pleimling, Michel J.	en
dc.contributor.committeemember	Heremans, Jean J.	en
dc.contributor.committeemember	Tauber, Uwe C.	en
dc.contributor.committeemember	Tao, Chenggang	en
dc.contributor.department	Physics	en
dc.date.accessioned	2017-06-03T06:00:14Z	en
dc.date.available	2017-06-03T06:00:14Z	en
dc.date.issued	2015-12-10	en
dc.description.abstract	We study the non-equilibrium behavior of systems that are driven out of equilibrium from the interface. In the first part of this thesis, we study a model of a two-dimensional lattice gas that is in contact with two heat baths that are at different temperatures. Performing Monte Carlo simulations, we find that there are three possible types of non-equilibrium steady states, depending on the values of certain system parameters. They include a disordered phase, a fully phase separated state, and an interesting state with striped patterns in the half of the lattice where the temperature is lower. The last one is a novel non-equilibrium steady state that we study systematically by varying the system parameters. To obtain the non-equilibrium finite-size phase diagram, we perform a spectrum analysis to classify not only the three major states, but also the sub-states of the striped phase. In the second part of the thesis, we study magnetic friction that results when two Potts systems move with respect to each other. In this research, we first study a model that consists of two interacting Potts blocks, where one block moves on top of the other. As a result, the system is driven out of equilibrium constantly. In our research we find for weak interfacial couplings that the contacting surfaces behave rather similar to a free surface. If the interfacial coupling is strong, however, anisotropic spin patterns appear on the contacting surfaces. This study is extended to a three-dimensional Potts wedge with a tip sliding along the surface of a Potts block. It is found that the shape of the Potts lattice influences the surface behavior of the system.	en
dc.description.degree	Ph. D.	en
dc.format.medium	ETD	en
dc.identifier.other	vt_gsexam:6689	en
dc.identifier.uri	http://hdl.handle.net/10919/77884	en
dc.publisher	Virginia Tech	en
dc.rights	In Copyright	en
dc.rights.uri	http://rightsstatements.org/vocab/InC/1.0/	en
dc.subject	Monte Carlo Simulation	en
dc.subject	Two-temperature Lattice Gas	en
dc.subject	Magnetic Friction	en
dc.subject	Non-equilibrium Phase Transition	en
dc.subject	Surface Critical Phenomena.	en
dc.title	Systems Driven out of Equilibrium with Energy Input at Interfaces or Boundaries	en
dc.type	Dissertation	en
thesis.degree.discipline	Physics	en
thesis.degree.grantor	Virginia Polytechnic Institute and State University	en
thesis.degree.level	doctoral	en
thesis.degree.name	Ph. D.	en

Systems Driven out of Equilibrium with Energy Input at Interfaces or Boundaries

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