Fogler Group

Low-dimensional and nanoscale electron systems

The research carried out in Michael Fogler's group is devoted to the theory of low-dimensional and nanoscale electron systems. A variety of such systems are being examined, ranging from zero-dimensional quantum dots to one-dimensional nanowires to two-dimensional electron gases and graphene. Examples of the recent work include investigation of low-temperature hopping transport in one-dimensional nanowires [1], analysis of Coulomb correlations in ultra-thin gated two-dimensional structures [2], study of the interplay between elastic and electronic properties in nanoscale graphene flakes [3, 4]. The group is engaged in active collaboration with UCSD experimentalists. Coherence and dynamics of cold excitons in semiconductor quantum wells is studied in collaboration with Leonid Butov's group [5]. Infrared optics of monolayer and bilayer graphene is investigated jointly with Dmitry Basov's group [6].

Bibliography

  1. A. S. Rodin, M. M. Fogler, Apparent power-law behavior of conductance in disordered quasi-one-dimensional systems, Phys. Rev. Lett. 105, 106801 (2010).
  2. B. Skinner, M. M. Fogler, A simple variational method for calculating energy and quantum capacitance of an electron gas with screened interactions, Phys. Rev. B (R) 82, 201306 (2010).
  3. M. M. Fogler, A. H. Castro Neto, F. Guinea, Effect of external conditions on the structure of scrolled graphene edges, Phys. Rev. B 81, 161408(R) (2010).
  4. E. Prada, P. San-Jose, G. León, M. M. Fogler, F. Guinea, Singular elastic strains and magnetoconductance of suspended graphene, Phys. Rev. B 81, 161402(R) (2010).
  5. M. Remeika, J.C. Graves, A.T. Hammack, A.D. Meyertholen, M.M. Fogler, L.V. Butov, M. Hanson, A.C. Gossard, Localization-Delocalization Transition of Indirect Excitons in Lateral Electrostatic Lattices, Phys. Rev. Lett. 102, 186803 (2009).
  6. L. M. Zhang, Z. Q. Li, D. N. Basov, M. M. Fogler, Z. Hao, M. C. Martin, Determination of the electronic structure of bilayer graphene from infrared spectroscopy results, Phys. Rev. B 78, 235408 (2008).