DocumentCode
3317058
Title
Sequential vs. coherent tunneling in double barrier diodes investigated by differential absorption spectroscopy
Author
Woodward, T.K. ; Chemla, D.S. ; Bar-Joseph, I. ; Baranger, H.U. ; Sivco, D.L. ; Cho, A.Y.
Author_Institution
AT&T Bell Lab., Holmdel, NJ, USA
fYear
1990
fDate
9-12 Dec. 1990
Firstpage
959
Lastpage
962
Abstract
The charge distributions in the quantum wells of several double barrier diodes were measured. It is found that the ratio of the stored charge to the current is not equal to the coherent state lifetime and is basically insensitive to the amount of scattering. It was experimentally demonstrated that phase breaking collisions take place in the present structures by observing the energy distribution of the stored charge in both single and double resonance structures.<>
Keywords
resonant tunnelling devices; tunnel diodes; tunnelling; RTD; charge distributions; coherent state lifetime; coherent tunneling; current; differential absorption spectroscopy; double barrier diodes; energy distribution; phase breaking collisions; quantum wells; sequential tunnelling; stored charge; Charge measurement; Current measurement; Diodes; Particle scattering; Resonance; Tunneling;
fLanguage
English
Publisher
ieee
Conference_Titel
Electron Devices Meeting, 1990. IEDM '90. Technical Digest., International
Conference_Location
San Francisco, CA, USA
ISSN
0163-1918
Type
conf
DOI
10.1109/IEDM.1990.237081
Filename
237081
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