Educational Background

  • Ph.D., Brandeis University

Scholarly Interests

  • Low energy positron beams
  • Positronium
  • Surface physics

Research Interests

  • David Schoepf uses anti-matter electrons (positrons) as probes to study the chemical and physical properties of metals and molecular compounds. Positrons injected into a material either annihilate directly with electrons in the material or after forming Positronium (a positron-electron 'atom'). A study of positron lifetimes in these materials can yield information about the properties of the electrons. This exotic probe provides a sensitive technique that complements other experimental methods for understanding the chemical binding, electron density, and free-volume in these materials.
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