Island Scholar Biography
Chair, Physics; Associate Professor
BSc, MSc, PhD (Dalhousie)
Dr. Derek Lawther, an experimental physicist, uses positron annihilation to identify defects in materials such as metals. He probes for defects at the atomic level and works to understand better how to manipulate these defects to produce enhanced physical properties such as increased strength or conductivity.
- Investigation of the links between atomic-scale defects in materials and their corresponding macroscopic physical properties
- Positron annihilation spectroscopy
- Radiation detection and measurement
- Raman spectroscopy