Özyilmaz BARBAROS

Assistant Professor

• My research area is experimental condensed matter physics. The two major thrusts of my research are charge and spin transport in lithographically patterned graphene nanostructures and the manipulation of the magnetization of nanoscale ferromagnets by means of spin currents. I am interested in both the fundamental properties of such systems and their potential applications in the fields of nano-electronics and nano-spintronics. While both systems are intriguing in their own right, merging them into a hybrid device allows one to take advantage of their mutually exclusive but complementary properties. Graphene is particularly attractive for nano-electronics and spintronics because it has the potential for wafer size, simple, planar fabrication of complex nanoscale high mobility devices. Equally important graphene offers thermal and chemical stability on the nanometer size range.

• Electronic transport in locally gated graphene nanoconstrictions, B. Özyilmaz, P. Jarillo-Herrero, D. Efetov, P. Kim, Appl. Phys. Lett, 91, 192107 (2007).

• Electronic transport and quantum Hall effect in bipolar graphene p-n-p junctions, B. Özyilmaz, P. Jarillo-Herrero, D. Efetov, D. A. Abanin, L. S. Levitov, Phys. Rev. Lett. 99,  166804 (2007).

• Energy Band Gap Engineering of Graphene Nanoribbons, M. Y. Han, B. Özyilmaz, Y. Zhang, Philip Kim, Phys. Rev. Lett. 98, 206805 (2007).

• Fabrication of nanostencil masks for spin transfer torque studies via focused ion beam milling, B. Özyilmaz et al., J. Appl. Phys., Vol. 101, 063920 (2007).

• Current induced switching in single ferromagnetic layer pillar junctions, B. Özyilmaz and A. D. Kent, Appl. Phys. Lett. 88, 162506 (2006).

• Current Induced Excitations in Cu/Co/Cu Single Ferromagnetic Layer Nanopillars, B. Özyilmaz, A. D. Kent, J. Z. Sun, M. J. Rooks and R. H. Koch., Phys. Rev. Lett., 93, 176604 (2004).
  
  

• Current Induced Ultra-fast Switching of the Magnetization in a Spin-Transfer Device, A. D. Kent, B. Özyilmaz and E. del Barco., Appl. Phys. Lett. 84(19) 3897 (2004).
  
  

• Current-Induced Magnetization Reversal in High Magnetic Fields in Co/Cu/Co Nanopillars, B. Özyilmaz, A. D. Kent, D. Monsma, J. Z. Sun, M. J. Rooks, and R. H. Koch., Phys. Rev. Lett., 91, 067203 (2003).