Links


My Presentations

> American Physical Society Meetings:

   2005 - Los Angeles
    CP3 in DQHS
   2006 - Baltimore
    CP3 in DQHS   
   2007 - Denver
    Transport in  DQHS
   2008 - New Orleans
    Transport in DQHS
    2011 - Dallas
     DMP

  > Other workshops and schools:
 
     2005 Taos (NM)       
     2007 Houston                            2011 Cologne- Germany    




Welcome to my homepage. I am a Postdoctoral Research Associate at the Institute for Theoretical Physics at the University of Cologne in Germany. I am currently a member of
 Prof. Thomas Nattermann's group.


Research Interest:

  My general field of interest is Condensed Matter and Statistical Physics.
  I am specifically interested in novel phenomena in electronic systems, their
  electromagnetic and transport behavior.


 I worked with Prof. Kieran Mullen (University of Oklahoma) and
 Prof. Herbert Fertig (Indiana University) on my PhD thesis.
 My thesis was about electronic systems in confined environments.

My current research is in two different areas:

     - Domain walls, defects and disorder in frustrated magnets. 

     - Dynamical magnetic polarization in quantum dots
       ( UT Dallas and NRC quantum theory group )

My current address:

    Institut für Theoretische Physik,
    Universität zu Köln,
    Zülpicher Str. 77, Köln 50937
    Deutschland
   
    broostae[at]uni-koeln.de

Selected Publications :
- Pinning theory of domain walls in helical magnets,
Bahman Roostaei, Thomas Nattermann
(Submitted to Physical Review Letters)

- Dynamical Magnetic and nuclear Polarization in Complex Spin Systems: Semi-magnetic II-VI Quantum Dots, Ramin M. Abolfath, Anna Trojnar, Bahman Roostaei,Thomas Brabec, Pawel Hawrylak ( submitted to Physical Review B)

- Electronic dipole transition moments and permanent dipole moments for spin-orbit configuration interaction wave functions, Bahman Roostaei, Walter C. Ermler
( to be published in  Computer Physics Communications )

-  Pseudo spin vortex-antivortex states with interwoven spin textures in double layer quantum Hall systems, J. Bourassa, B. Roostaei, R. Cote, H. A. Fertig and K. Mullen, Phys. Rev. B. 74, 195320 (2006) [ Selected for the November 27, 2006 issue of Virtual Journal of Nanoscale Science & Technology.]

- Theory of  activated transport in bilayer quantum Hall systems, Bahman Roostaei, Kieran Mullen, Herbert Fertig, Steven Simon, Phys. Rev. Lett. 101, 046804 (2008) 

- Polarization Transitions in Quantum Ring Arrays, Bahman Roostaei and Kieran J. Mullen, A. T. Rezakhani,  Phys. Rev. B 78, 075411 (2008)

Invited Talks:

      - Department of Physics, Case Western Reserve University, February 2008, Cleveland , OH

                 Bilayer Quantum Hall Effect

-  Department of Physics, University of Texas, May 2007, Austin , TX
      Spin-Pseudospin Excitations, Activation Energies and Dissipation in Quantum Hall Bilayer       Systems at Total Filling Factor $\nu= 1$.

 -  University of Arkansas/ 2004, Fayetteville, AK
       Novel Phenomena in Nanostructure Ring Arrays.

 - University of Oklahoma, Physics Department/ May 2005, Norman, OK
       Real Spin in Pseudospin Quasiparticles of Bilayer Quantum Hall systems.





 

Last updated: 05/2012