Conductance distributions of one-dimensional disordered wires at finite temperature and bias voltage
We calculate the distribution of the conductance G in a one-dimensional disordered wire at finite temperature T and bias voltage V in an independent-electron picture and assuming full coherent transport. At high enough temperature and bias voltage, where several resonances of the system contribute t...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_10980121_v74_n16_p_Foieri |
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todo:paper_10980121_v74_n16_p_Foieri2023-10-03T16:06:01Z Conductance distributions of one-dimensional disordered wires at finite temperature and bias voltage Foieri, F. Sánchez, M.J. Arrachea, L. Gopar, V.A. We calculate the distribution of the conductance G in a one-dimensional disordered wire at finite temperature T and bias voltage V in an independent-electron picture and assuming full coherent transport. At high enough temperature and bias voltage, where several resonances of the system contribute to the conductance, the distribution P (G (T,V)) can be represented with good accuracy by autoconvolutions of the distribution of the conductance at zero temperature and zero bias voltage. The number of convolutions depends on T and V. In the regime of very low T and V, where only one resonance is relevant to G (T,V), the conductance distribution is analyzed by a resonant tunneling conductance model. Strong effects of finite T and V on the conductance distribution are observed and well described by our theoretical analysis, as we verify by performing a number of numerical simulations of a one-dimensional disordered wire at different temperatures, voltages, and lengths of the wire. Analytical estimates for the first moments of P (G (T,V)) at high temperature and bias voltage are also provided. © 2006 The American Physical Society. Fil:Foieri, F. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Sánchez, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10980121_v74_n16_p_Foieri |
| institution |
Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
We calculate the distribution of the conductance G in a one-dimensional disordered wire at finite temperature T and bias voltage V in an independent-electron picture and assuming full coherent transport. At high enough temperature and bias voltage, where several resonances of the system contribute to the conductance, the distribution P (G (T,V)) can be represented with good accuracy by autoconvolutions of the distribution of the conductance at zero temperature and zero bias voltage. The number of convolutions depends on T and V. In the regime of very low T and V, where only one resonance is relevant to G (T,V), the conductance distribution is analyzed by a resonant tunneling conductance model. Strong effects of finite T and V on the conductance distribution are observed and well described by our theoretical analysis, as we verify by performing a number of numerical simulations of a one-dimensional disordered wire at different temperatures, voltages, and lengths of the wire. Analytical estimates for the first moments of P (G (T,V)) at high temperature and bias voltage are also provided. © 2006 The American Physical Society. |
| format |
JOUR |
| author |
Foieri, F. Sánchez, M.J. Arrachea, L. Gopar, V.A. |
| spellingShingle |
Foieri, F. Sánchez, M.J. Arrachea, L. Gopar, V.A. Conductance distributions of one-dimensional disordered wires at finite temperature and bias voltage |
| author_facet |
Foieri, F. Sánchez, M.J. Arrachea, L. Gopar, V.A. |
| author_sort |
Foieri, F. |
| title |
Conductance distributions of one-dimensional disordered wires at finite temperature and bias voltage |
| title_short |
Conductance distributions of one-dimensional disordered wires at finite temperature and bias voltage |
| title_full |
Conductance distributions of one-dimensional disordered wires at finite temperature and bias voltage |
| title_fullStr |
Conductance distributions of one-dimensional disordered wires at finite temperature and bias voltage |
| title_full_unstemmed |
Conductance distributions of one-dimensional disordered wires at finite temperature and bias voltage |
| title_sort |
conductance distributions of one-dimensional disordered wires at finite temperature and bias voltage |
| url |
http://hdl.handle.net/20.500.12110/paper_10980121_v74_n16_p_Foieri |
| work_keys_str_mv |
AT foierif conductancedistributionsofonedimensionaldisorderedwiresatfinitetemperatureandbiasvoltage AT sanchezmj conductancedistributionsofonedimensionaldisorderedwiresatfinitetemperatureandbiasvoltage AT arracheal conductancedistributionsofonedimensionaldisorderedwiresatfinitetemperatureandbiasvoltage AT goparva conductancedistributionsofonedimensionaldisorderedwiresatfinitetemperatureandbiasvoltage |
| _version_ |
1782025510374604800 |