Nonlinear resonant tunneling through doubly degenerate local state and strong electron-phonon interaction

1999 ◽  
Vol 25 (10) ◽  
pp. 776-781 ◽  
Author(s):  
V. N. Ermakov
Keyword(s):  
Resonant Tunneling ◽  
Local State ◽  
Phonon Interaction ◽  
Strong Electron ◽  
Electron Phonon Interaction

PHENOMENA IN RESONANT TUNNELING THROUGH DEGENERATED ENERGY STATES WITH ELECTRON CORRELATION

2007 ◽  
Vol 21 (11) ◽  
pp. 1827-1835 ◽  
Author(s):  
VLADIMIR N. ERMAKOV ◽  
SERGEI P. KRUCHININ ◽  
HIDENOBU HORI ◽  
AKIHIKO FUJIWARA
Keyword(s):  
Electron Correlation ◽  
Resonant Tunneling ◽  
High Performance ◽  
Coulomb Repulsion ◽  
Analysis Method ◽  
Phonon Interaction ◽  
Strong Electron ◽  
Electron Phonon Interaction ◽  
Wide Range ◽  
Good Agreement

We introduce a general analysis method, which allows us to simulate the operation of high-performance molecular nano-devices and to design the expected function of a wide range of devices in nano-scale size. The method is based on the use of a resonant tunneling phenomenon, admitting strong electron correlation in a quantum dot with degenerated states. Three examples of the application of this method are given: Coulomb repulsion, uncorrelated resonant tunneling, and electron-phonon interaction. It is shown that there is a good agreement with experimental data in all three cases.

Optical Spectroscopic Studies of a Soluble Fluorene-Based Conjugated Polymer: A Hydrostatic Pressure and Temperature Study

2001 ◽  
Vol 708 ◽  
Author(s):  
S. Guha ◽  
J.D. Rice ◽  
C. M. Martin ◽  
W. Graupner ◽  
M. Chandrasekhar ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
Conjugated Polymer ◽  
Spectroscopic Properties ◽  
Spectroscopic Studies ◽  
Phonon Interaction ◽  
Optical Studies ◽  
Strong Electron ◽  
Conjugated Molecules ◽  
Electron Phonon Interaction ◽  
Backbone Conformation

ABSTRACTSpectroscopic properties of conjugated molecules/polymers have varying degrees of sensitivity to backbone conformation. Optical studies are presented as a function of temperature and hydrostatic pressure, using photoluminescence and Raman scattering from two polymers with distinct differences in their backbone conformation, namely, polyfluorene (PF) and ladder type poly(para-phenylene)(m-LPPP). In contrast to the photoluminescence (PL) vibronics in mLPPP, the 0-0 PL vibronic peak in PF shows a red-shift with increasing temperatures. Pressure studies reveal that the PL spectrum of PF red-shifts and broadens with increasing pressures. The phonon lines in PF show an antiresonance effect at higher pressures indicating a strong electron-phonon interaction.

Evidence of strong electron-phonon interaction in a GaN-based quantum cascade emitter

2020 ◽  
Vol 145 ◽  
pp. 106631
Author(s):  
Daniel Hofstetter ◽  
Hans Beck ◽  
John E. Epler ◽  
Lutz Kirste ◽  
David P. Bour
Keyword(s):  
Phonon Interaction ◽  
Strong Electron ◽  
Quantum Cascade ◽  
Electron Phonon Interaction
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