Advanced Materials

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Materials Theory and Simulation


ORNL conducts a broad range of theoretical research in the physical sciences with over 60 staff members and additional students, post-doctoral associates and visitors. This work is tightly integrated with experimental programs and is committed to making effective use of modern theory and advanced computation to progress core science and technology. Efforts include a full range of theory activities, ranging from basic science aimed at providing the fundamental basis for long-term solutions to our energy problems, to near-term work addressing our nation's most pressing energy and security needs. Work is highlighted by:

  • Cross-cutting capabilities/efforts impacting multiple ORNL programs and activities centered on nanoscience, physics, chemistry, materials, and neutron science
  • New theory and computational approaches to establish and enhance links with experiments
  • First principles methods based on density functional theory, quantum chemistry, classical and ab initio molecular dynamics, transport theory, many-body theory, quantum Monte Carlo, field theoretic approaches, phase field analysis, and statistical mechanics
  • Guiding understanding and providing prediction of new materials, architectures and reactions before they are realized in the experimental labs
  • Illuminating connections between experimental observations across diverse characterization techniques
  • Identifying new synthetic pathways

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Elementary excitations in liquids
— Elementary excitations in metallic liquids were discovered through computer simulation, representing a major advance in the physics of liquids. In solids the elementary excitations of lattice dynamics are phonons, but in liquids they have a very short lifetime.

 
 
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