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Procedia PHYSICS 00 (2010) 15 Procedia Physics
 

Summary: Procedia PHYSICS 00 (2010) 15
Procedia Physics
Simulation of solid molecular hydrogen - a new twist to an old
problem
Joan Adler
Technion - IIT, Haifa, Israel
Or Cohen
Weizmann Institute of Science, Rehovot, Israel
Abstract
Solid molecular orthohydrogen exhibits orientational order at low temperatures. The ortho-
hydrogen molecules, which are quadrupoles, order in the Pa3 structure. We have simulated this
ordering, and explored the behaviour under dilution by spherical parahydrogen molecules.
Keywords: solid molecular hydrogen, quadrupoles, Monte Carlo
1. Introduction
Solid molecular hydrogen is a fascinating material, even though some may consider it to be
less exotic than solid atomic hydrogen. It was intensively explored in the seventies and eighties,
both in the laboratory and as theoretical/computational models. For some states, the hydrogen
molecules behave like quadrupoles which preferentially orient perpendicular to each other, lead-
ing to an orientational ordering. Hydrogen has great relevance to many aspects of clean energy
generation. Interactions between hydrogen and nanotubes/fullerenes are receiving special atten-

  

Source: Adler, Joan - Physics Department, Technion, Israel Institute of Technology

 

Collections: Physics