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Physics & Astronomy

Branton Campbell

Branton J. Campbell

Assistant Professor

Department of Physics & Astronomy

Brigham Young University
Provo, UT 84602,USA

Tel: 801-422-5758   Fax: 801-422-0553

Email: branton_campbell@byu.edu

URL: http://physics.byu.edu/faculty/campbell/

Research Interests

I am currently applying state-of-the-art x-ray and neutron scattering techniques to study local and intermediate-range structures in a variety of complex solids, including fast-ion conductors, ferroelectric relaxors, high-temperature superconductors, and colossal magnetoresistive manganites, where nanoscale structural features influence macroscopic physical properties.
Featured Research
Modulated Crystal Structures
Harold Stokes, Branton Campbell, and Dorian Hatch recently announced an exhaustive group-theoretical enumeration and classification of the distortion symmetries that can arise from one-dimensional incommensurate modulations of three-dimensional crystal structures. Acta Cryst. A63, 365-373 (2007). Such wave-like modulations accompany a variety of important physical phenomena (e.g. magnetism and superconductivity) and dramatically complicate any quantitative structure analysis. This work will make it much easier to interpret basic experimental diffraction data. The figure illustrates a short-range displacive modulation observed in magnetoresistive La1.8Sr2.2Mn2O7. [Read More]
 
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