Center for the Advancement of Topological Semimetals (CATS)


Robert McQueeney

Lead Institution

Ames Laboratory




To understand and discover new quantum phenomena and functionality in topological materials for future applications in spin-based electronics, computing, and sensing.

Research Topics

optics, charge transport, magnetism and spin physics, materials and chemistry by design, synthesis (novel materials), synthesis (predictive)

Materials Studied

Materials: semiconductor, metal, optoelectronic and metamaterial

Interfaces: solid/solid

Nanostructured Materials: 3D

Experimental and Theoretical Methods

X-ray diffraction and scattering, neutron diffraction and scattering, electron microscopy, scanning probe microscopy, near-field microscopy, surface science, ultrafast science, high-throughput screening methods, density functional theory (DFT)

Partner Institutions

  • Ames Laboratory
  • Argonne National Laboratory
  • Harvard University
  • Los Alamos National Laboratory
  • Massachusetts Institute of Technology
  • University of California, Santa Barbara
  • University of Waterloo 

BES Staff Contact

Michael Pechan, Matthias Graf