The influence of the nanostructure geometry on the thermoelectric properties

• Thermoelectric properties are studied for three configurations.
• ZT enhanced in asymmetry configuration.
• Amplitude, frequency, and phase of the conductance tuned by varying magnetic flux.
• Magnetic flux suppresses antiresonance states.

We discuss the influence of nanostructure geometry on the thermoelectric properties in quantum ring consists of one QD in each arm, each QD connects with side QD. The calculations are based on the time-dependent Hamiltonian model, the steady state is considered to obtain an analytical expression for the transmission probability as a function of system energies. We employed the transmission probability to calculate the thermoelectric properties. We investigate thermoelectric properties through three configurations of this nanostructure. Figure of merit enhanced in configuration (II) when side QD connected to upper arm of quantum ring. The magnetic flux threads quantum ring. The effect of magnetic flux on the thermoelectric properties is examined.

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