Heat current across double quantum dots in series coupled to ferromagnetic leads in antiparallel configuration within weak interdot coupling regime

Najdi, M. A.; Al-Mukh, J. M.; Jassem, H. A.

doi:10.1007/s10825-021-01778-5

Cited by 2 publications

(2 citation statements)

References 30 publications

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“…1. Almost the higher transmission coefficient are Fano resonances for all N and both spin (see Figs (13)(14)(15)(16)).…”

Section: -Our Resultsmentioning

confidence: 99%

The Role of Spin – Orbit Coupling in the Spin Transport FM-(G/C)N-FM

Merzoq,

Al-Mukh

2024

J.port.sci.res.

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The spin transport through DNA system formed by a guanine-cytosine is studied extendedly in our work. Hence, theoretical treatment is accomplished for one magnetized active region (includes base pairs and backbone) coupled to ferromagnetic leads in parallel configuration case, throughout magnetic quantum contacts (FM-(G/C)N-FM). Our treatment is based on the tight binding model to derive obvious formula for the spin dependent transmission spectrum which is employed to investigate the spin transport through DNA junction. Our calculations are accomplished in the presence of spin-orbit coupling for strong, weak and "without backbone" regimes. The role the system spin dependent factors of the transport of (G/C)N molecule are investigated in our study. These factors include the molecular length, as well as externally applied bias voltage. Variation of these factors can enhance or suppress spin transport through (G/C)N molecule (with N=10,15,20,25. The transmission spectrum results confirm that the spin transport throughout (G/C)N is originated by a coherent tunneling process between neighboring bases through the overlapping of the LUMO orbitals of the bases. The physical mechanism is raise from quantum interference combination with molecular length and the presence of spin-orbit coupling. The best functional feature for environmental effect, which may induce dephasing such as leads temperature, is investigated. The results showed that the spin-polarized transport can be effectively regulated by the molecular length of (G/C) which can exhibit efficient spin filtering and spin switching

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“…1. Almost the higher transmission coefficient are Fano resonances for all N and both spin (see Figs (13)(14)(15)(16)).…”

Section: -Our Resultsmentioning

confidence: 99%

The Role of Spin – Orbit Coupling in the Spin Transport FM-(G/C)N-FM

Merzoq,

Al-Mukh

2024

J.port.sci.res.

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“…1. The single Hamiltonian can be extended to describe the two quantum dots in parallel, the electronic Hamiltonian can be described by the Anderson model [5],…”

Section: Introductionmentioning

confidence: 99%

Fano and Dicke Effects in Parallel-Coupled Quantum Dots Embedded Between Two Leads

Hashim

2023

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In this article, electronic transport through a double quantum dot attached in parallel to a metal lead and with the presence of a magnetic flux is studied with the help of the Green-function formalism and the equation of motion approach. A detail formula is obtained for the density of states and the conductance. The Fano and Dicke effects in the conductance spectra of the double quantum dots system DQD is found and controlled by tuning the coupling (Γ) of the two dots to right (left) Leads and by changing the external magnetic flux.

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Heat current across double quantum dots in series coupled to ferromagnetic leads in antiparallel configuration within weak interdot coupling regime

Cited by 2 publications

References 30 publications

The Role of Spin – Orbit Coupling in the Spin Transport FM-(G/C)N-FM

The Role of Spin – Orbit Coupling in the Spin Transport FM-(G/C)N-FM

Fano and Dicke Effects in Parallel-Coupled Quantum Dots Embedded Between Two Leads

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