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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
Transient Defects Caught in the Act
Anisotropic x-ray diffuse scattering pattern surrounding the (200) Bragg reflection of La1.8Sr2.2Mn2O7 at 125 K. This "butterfly" scattering is evidence that Jahn-Teller polarons (football-shaped lattice distortions that follow hopping electrons from site to site) play a role in this material's exotic phase transition from paramagnetic insulator to ferromagnetic metal. Branton Campbell and collaborators used this data to conduct the first quantitative three-dimensional structural analysis of a transient crystal defect. Phys. Rev. B 67, 020409(R) (2003). [Read More]
 
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