62 Result(s)

Chapter

Phases and Phase Changes of Small Systems

Atomic and molecular clusters exhibit a variety of phase-like forms and phase changes that differ from those of bulk matter. It is possible to relate some-but not all-of these to corresponding phases and phase...

R. Stephen Berry in Theory of Atomic and Molecular Clusters (1999)

Article

Size is everything

Bulk matter melts and freezes in a predictable manner. Not so clusters of atoms in their tens, hundreds or thousands, which have very different properties. They have no fixed melting temperature at a given pre...

R. Stephen Berry in Nature (1998)

Article

Thermal Mass and Thermal Inertia in Fluids — A Comparison of Hypotheses

Thermal inertia and thermal mass are concepts that offer means to describe transport of heat in nonequilibrium fluids. However there are options regarding how to separate the part of the total flow that caries...

Stanisław Sieniutycz, R. Stephen Berry in Open Systems & Information Dynamics (1997)

Chapter

Phases and Phase Changes of Clusters

Phase-like forms are expected to be observable for many kinds of clusters, insofar as they should satisfy criteria used to characterize phases of bulk form. However clusters are also expected to exhibit phase-...

R. Stephen Berry in Large Clusters of Atoms and Molecules (1996)

Chapter

Topographies and Dynamics of Many-Dimensional Potential Surfaces

Multidimensional potential surfaces pose a variety of problems, not least of which is that it is now possible to obtain more information about the minima and other stationary points of such surfaces than we kn...

R. Stephen Berry, Ralph E. Kunz in Large Clusters of Atoms and Molecules (1996)

Chapter

Probing The Collective and Independent-Particle Character of Atomic Electrons

Niels Bohr and Arnold Sommerfeld developed their model of the hydrogen atom and other one-electron atoms based on the concepts of discrete, stationary states and quantized energies and angular momenta of these...

R. Stephen Berry in Structure and Dynamics of Atoms and Molecules: Conceptual Trends (1995)

Chapter

Exploring Potential Surface Landscapes and How they Govern Dynamics

The subject of multidimensional potential surfaces and the dynamics on those surfaces was just reviewed by this writer ¹, and the closely related topic of the analytic representation of potential surfaces, largel...

R. Stephen Berry in Linking the Gaseous and Condensed Phases of Matter (1994)

Chapter

Phase Transitions in Clusters: A Bridge to Condensed Matter

Clusters of atoms or molecules, consisting of as few as three and as many as many thousands of particles, exhibit some properties of individual molecules, some properties of bulk matter and some properties cha...

R. Stephen Berry in Linking the Gaseous and Condensed Phases of Matter (1994)

Article

Preface

R. Stephen Berry, A. Castleman… in Zeitschrift für Physik D Atoms, Molecules … (1993)

Article

Chaotic dynamics and vibrational mode coupling in small argon clusters

We have computed the local Kolmogorov entropy of molecular dynamics trajectory segments near the potential energy saddles of model Ar₃ and Ar₅ clusters. In the case of Ar₃ clusters bound with a Lennard-Jones pote...

Robert J. Hinde, R. Stephen Berry in Zeitschrift für Physik D Atoms, Molecules and Clusters (1993)

Article

Clusters: A laboratory for studying chaos and ergodicity

The dynamics of clusters are revealed, in part, by the extent and nature of their chaotic and ergodic behavior. Conversely, small clusters offer opportunities to study the origins and evolution of chaotic and ...

Concezione Amitrano, R. Stephen Berry in Zeitschrift für Physik D Atoms, Molecules … (1993)

Article

Noble gas clusters in model zeolite cavities

Noble gas atoms trapped in the intracrystalline cavities of zeolites may form clusters. A classical-mechanical isoenergetic molecular dynamics simulation is performed to simulate the dynamical behavior of nobl...

Feng Yin Li, R. Stephen Berry in Zeitschrift für Physik D Atoms, Molecules and Clusters (1993)