Self-sustained oscillations caused by magnetic field in a weakly-coupled GaAs/AlAs superlattice

We have investigated the influence of transverse magnetic field B up to 14 T at 1.6 K on the tunneling processes of electric field domains in doped weakly coupled GaAs/AlAs superlattices. Three regimes, i.e, stable field domains, current self-sustained oscillations and averaged field distribution are successively observed with increasing B. The mechanisms of switching-over among these regimes are due to B-induced modification of the dependence of the effective electron drift velocity on electric field. The simulated calculation gives a good agreement with the observed experimental results. (C) 2000 Published by Elsevier Science B.V. All rights reserved.

Late Cenozoic climate changes in China's western interior: a review of research on Lake Qinghai and comparison with other records

IEECAS SKLLQG

The influence and chronological uncertainties of the 8.2 ka cooling event on continental climate records in China

IEECAS SKLLQG

Mid-Holocene climate variations recorded by palaeolake in marginal area of east Asian monsoon: A multi-proxy study

IEECAS SKLLQG

The orbital scale evolution of regional climate recorded in a long sediment core from Heqing；China

IEECAS SKLLQG