2024-03-29T10:50:38Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/533292018-09-13T09:29:46Zcom_10261_89com_10261_3com_10261_132com_10261_8col_10261_342col_10261_385
DIGITAL.CSIC
author
Sánchez, David
author
Moscoso, M.
author
Bonilla, Luis L.
author
Platero, Gloria
author
Aguado, Ramón
2012-07-16T07:45:12Z
2012-07-16T07:45:12Z
2000
Physica E: Low-Dimensional Systems and Nanostructures 7: 299-301 (2000)
http://hdl.handle.net/10261/53329
10.1016/S1386-9477(99)00311-2
A self-consistent microscopic model of sequential tunneling in superlattices is employed to investigate self-sustained current oscillations. Current spikes - high-frequency modulation due to well-to-well hopping of charge monopole domain walls - are naturally reproduced. Moreover, as the contact doping shrinks, the recycling and motion of charge dipoles resulting in a lower-frequency oscillatory mode is predicted. For low contact doping, this mode dominates and monopole oscillations disappear. At intermediate doping, hysteresis between both the oscillatory modes may be possible.
eng
closedAccess
Dynamics of electric field domain walls in semiconductor superlattices
artículo
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URL
https://digital.csic.es/bitstream/10261/53329/1/accesoRestringido.pdf
File
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accesoRestringido.pdf
URL
https://digital.csic.es/bitstream/10261/53329/5/accesoRestringido.pdf.txt
File
MD5
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text/plain
accesoRestringido.pdf.txt