Critical phenomena at interfaces. Phase transitions at quantum surfaces

Critical Phenomena at Interfaces Phase Transitions at Quantum Surfaces

Tlre qnantum systems helium and hydrogen provide a versatile testing ground for studying interfacial phenomena. As examples, both some properties of surface< near thermodynamic equilibrium, like layering and wetting, and uonequilibrium states of qucnch-condensed disordered films are discussed. A further topic is the development of macroscopic instabilities of interfaces under external perturbat...

Surface Critical Phenomena at First-order Phase Transitions

Frequently, first-order phase transitions in solids are characterized by the coexistence of a disordered phase and several ordered phases. Near such a transition, the disordered phase may appear in the surface region of the crystal even though the bulk crystal remains in one of its ordered states. This leads to several critical effects which are characterized by critical exponents. Recent exper...

Introduction to Phase Transitions and Critical Phenomena

Emergent phenomena at oxide interfaces.

Recent technical advances in the atomic-scale synthesis of oxide heterostructures have provided a fertile new ground for creating novel states at their interfaces. Different symmetry constraints can be used to design structures exhibiting phenomena not found in the bulk constituents. A characteristic feature is the reconstruction of the charge, spin and orbital states at interfaces on the nanom...

Critical phenomena at perfect and non-perfect surfaces

In the past perfect surfaces have been shown to yield a local critical behaviour that differs from the bulk critical behaviour. On the other hand surface defects, whether they are of natural origin or created artificially, are known to modify local quantities. It is therefore important to clarify whether these defects are relevant or irrelevant for the surface critical behaviour. The purpose of...