Impact of optical phonon scattering on magnetotransport in double-barrier heterostructures

Details Impact of optical phonon scattering on magnetotransport in double-barrier heterostructures Impact of optical phonon scattering on magnetotransport in double-barrier heterostructures

2001-12-26

arxiv.org/abs/cond-mat/0112455v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

17 pages and 5 figures. Accepted for publication in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.65.115328

The transport in double-barrier heterostructures of electrons interacting with longitudinal optical phonons in the presence of parallel electric and magnetic fields is analyzed theoretically with the aid of a 3-dimensional quantum transport simulator. Inter Landau state transitions induced by LO-phonon scattering-assisted resonant-tunneling is shown to be an important process with a probability comparable to that of intra Landau state scattering. Analysis of the current-voltage characteristics reveals also that the current peak is a periodic function of the inverse of the magnetic field, with a period dependent on the quasi-resonant energy level.

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