Metamaterials


Figure. Electric field-controlled metal-insulator transition in a thin NdNiO3 film.
field-controlled MIT

The concept of metamaterials is at the heart of modern Condensed Matter Physics. Physical properties of most of the materials encountered in Nature have been relatively well understood by the end of the 20th century. We are now extrapolating that knowledge to come up with new combinations of materials, nano- and heterostructures that will exhibit new properties that are not encountered in Nature. In addition, progress in nanostructure engineering and material science now enables us to apply large local electric and magnetic fields of currents that allow us to attain unprecedented control over the properties of these systems. Our project is studying the possiblity to engineer and externally manipulate the magnetic and electronic characteristics of nanoscale systems, and to engineer nanodevices utilizing these effects to achieve new functionalities.

Related recent group publications

  • “Field-effect diode based on a complex oxide”, W. Lim et al. in preparation (2012)
  • “ Wide-range control of ferromagnetic resonance by spin Hall effect” V. Demidov, S. Urazhdin, E. Edwards, and S.O. Demokritov, Appl. Phys. Lett. 99, 172501(2011)
  • “Relationship Between Granularity of Antiferromagnet and Exchange Bias” S. Urazhdin, P. Tabor, and W.L. Lim, Phys. Rev. B 78, 052403 (2008), arXiv:0807.1159
  • “Effect of Spin Diffusion on Spin Torque in Magnetic Nanopillars” S. Urazhdin and S. Button, Phys. Rev. B 78, 172403 (2008), arXiv:0805.2706