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6 papers · 2 filters
Phonon-assisted tunneling in asymmetric resonant tunneling structures
Jun-jie Shi, Barry C. Sanders, Shao-hua Pan
Based on the dielectric continuum model, we calculated the phonon assisted tunneling (PAT) current of general double barrier resonant tunneling structures (DBRTSs) including both s…
Asymmetric double barrier resonant tunneling structures with improved characteristics
Jun-jie Shi, Barry C. Sanders, Shao-hua Pan
We present a self-consistent calculation, based on the global coherent tunnelling model, and show that structural asymmetry of double barrier resonant tunnelling structures signifi…
Random-phase Approximation Treatment Of Edge Magnetoplasmons: Edge-state Screening And Nonlocality
O. G. Balev, P. Vasilopoulos
A random-phase approximation (RPA) treatment of edge magnetoplasmons (EMP) is presented for strong magnetic fields, low temperatures, and integer filling factors ν. It is valid for…
Dynamical Instabilities and Deterministic Chaos in Ballistic Electron Motion in Semiconductor Superlattices
Kirill N. Alekseev, Gennady P. Berman, David K. Campbell
We consider the motion of ballistic electrons within a superlattice miniband under the influence of an alternating electric field. We show that the interaction of electrons with th…
Magnetoconductance noise and irreversibilities in submicron wires of spin-glass n-CdMnTe
J. Jaroszynski, J. Wrobel, G. Karczewski +2
Signatures of spin-glass freezing such as the appearance of 1/f conductance noise, the recovery of universal conductance fluctuations, aging, as well as magnetic and thermal irreve…
Coherent carrier dynamics in semiconductor superlattices
Enrique Diez, Rafael Gomez-Alcala, Francisco Dominguez-Adame +2
We investigate the coherent dynamics of carriers in semiconductor superlattices driven by ac-dc electric fields. We solve numerically the time-dependent effective-mass equation for…