Magneto-transport properties of a single molecular transistor: Anderson-Holstein-Caldeira-Leggett model

2019 ◽  
Author(s):  
Manasa Kalla ◽  
Ch. Narasimha Raju ◽  
Ashok Chatterjee
Keyword(s):  
Transport Properties ◽  
Molecular Transistor

scholarly journals Magneto-transport properties of a single molecular transistor in the presence of electron-electron and electron-phonon interactions and quantum dissipation

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Manasa Kalla ◽  
Narasimha Raju Chebrolu ◽  
Ashok Chatterjee
Keyword(s):  
Transport Properties ◽  
Differential Conductance ◽  
Function Technique ◽  
Electron Interaction ◽  
Polarization Current ◽  
Quantum Dissipation ◽  
Electron Phonon Interaction ◽  
Spin Polarized ◽  
The Green Function ◽  
Molecular Transistor

Abstract A single molecular transistor is considered in the presence of electron-electron interaction, electron-phonon interaction, an external magnetic field and dissipation. The quantum transport properties of the system are investigated using the Anderson-Holstein Hamiltonian together with the Caldeira-Leggett model that takes care of the damping effect. The phonons are first removed from the theory by averaging the Hamiltonian with respect to a coherent phonon state and the resultant electronic Hamiltonian is finally solved with the help of the Green function technique due to Keldysh. The spectral function, spin-polarized current densities, differential conductance and spin polarization current are determined.

Spectroscopic Diagnostics of Tokamaks

1988 ◽  
Vol 102 ◽  
pp. 165-174
Author(s):  
C. de Michelis
Keyword(s):  
Transport Properties ◽  
Power Losses ◽  
Spectroscopic Diagnostics ◽  
Important Concern

AbstractImpurities being an important concern in tokamaks, spectroscopy plays a key role in their understanding. Techniques for the evaluation of concentrations, power losses and transport properties are surveyed, and a few developments are outlined.

Structure and Orientation of As Precipitates in LT-MBE Grown GaAs

1991 ◽  
Vol 49 ◽  
pp. 900-901 ◽  
Author(s):  
Alain Claverie ◽  
Zuzanna Liliental-Weber
Keyword(s):  
Transport Properties ◽  
Layer Thickness ◽  
Growth Temperature ◽  
Low Temperatures ◽  
Lattice Parameter ◽  
Crystalline Quality ◽  
Insulating Properties ◽  
Lt Gaas

GaAs layers grown by MBE at low temperatures (in the 200°C range, LT-GaAs) have been reported to have very interesting electronic and transport properties. Previous studies have shown that, before annealing, the crystalline quality of the layers is related to the growth temperature. Lowering the temperature or increasing the layer thickness generally results in some columnar polycrystalline growth. For the best “temperature-thickness” combinations, the layers may be very As rich (up to 1.25%) resulting in an up to 0.15% increase of the lattice parameter, consistent with the excess As. Only after annealing are the technologically important semi-insulating properties of these layers observed. When annealed in As atmosphere at about 600°C a decrease of the lattice parameter to the substrate value is observed. TEM studies show formation of precipitates which are supposed to be As related since the average As concentration remains almost unchanged upon annealing.

Modification of structural and transport properties in epitaxial YBa2CU3Ox films by pulsed laser irradiation

1993 ◽  
Vol 3 (12) ◽  
pp. 2173-2188
Author(s):  
N. G. Chechenin ◽  
A. V. Chernysh ◽  
V. V. Korneev ◽  
E. V. Monakhov ◽  
B. V. Seleznev
Keyword(s):  
Transport Properties ◽  
Laser Irradiation ◽  
Pulsed Laser ◽  
Pulsed Laser Irradiation

Transport properties of Ni81.5B18.5 - YP y amorphous alloys

1989 ◽  
Vol 50 (21) ◽  
pp. 3233-3242 ◽  
Author(s):  
M. Očko ◽  
E. Babić
Keyword(s):  
Transport Properties ◽  
Amorphous Alloys

Transport properties of evaporated versus sputtered amorphous germanium films

1980 ◽  
Vol 41 (10) ◽  
pp. 1173-1181 ◽  
Author(s):  
M.-L. Theye ◽  
A. Gheorghiu ◽  
T. Rappeneau ◽  
A. Lewis
Keyword(s):  
Transport Properties ◽  
Amorphous Germanium ◽  
Germanium Films
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