University of Michigan - Roy Clarke Group
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Professor Clarke’s group currently focuses on the physics of novel epitaxial materials, including magnetic and ferroelectric thin-film structures. Questions of interest relate to the unusual properties of thin-film materials that are increasingly important for microelectronics applications. Ongoing research projects include the following:

  • Ferroelectric heterostructures for their extraordinary dielectric behavior and symmetry-breaking structural transitions
  • Magnetic nanostructure studies aimed at understanding the link between structural and magnetic anisotropy in materials for high-density recording applications
  • Diamond-like boron nitride films for field emission and neutron detection applications. This work is in collaboration with the Space Physics Research Lab.

Experimental facilities available for this work include several ultrahigh vacuum chambers instrumented for vapor deposition, ultrafast laser ablation, and ion-assisted plasma growth techniques. In-situ diagnostics for thin-film growth include scanning tunneling microscopy (STM), Reflection High Energy Electron Diffraction (RHEED), and wafer curvature stress monitoring. Thin-film Kerr magnetometry is also available, including a novel time-resolved MOKE instrument in collaboration with the OPIL and FOCUS ultrafast optics facilities in the Randall Lab. Much of the structural work is carried out at the Advanced Photon Source, a state-of-the-art synchrotron x-ray facility located at Argonne National Lab. The work is supported by private industry, the U.S. Department of Energy Office of Basic Energy Sciences, and the National Science Foundation.


Physics Department Contact:
University of Michigan
Department of Physics
500 E. University Ave.
2477 Randall Laboratory
Ann Arbor, MI 48109-1120
phone: (734) 764-4437
fax: (734) 763-9396

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