The step-like features on the I-V curves of the resonant tunneling diodes : current vortexes ?

@inproceedings{VolkovTheSF,
  title={The step-like features on the I-V curves of the resonant tunneling diodes : current vortexes ?},
  author={Vecheslav Volkov and Michael Feiginov and Yu. and V. and Popovt and E. E. Vdovint and L. Eaves and P. Maint and M. Heninit and Andre K Geim and Jan Kees Maan and M. S. Skolnickl}
}