Enhanced spin-dependent thermopower in a double-quantum-dot sandwiched between two-dimensional electron gases

Chi Feng¹, Fu Zhen-Guo^{2, †}, Liu Liming¹, Zhang Ping^{2, ‡}

Spin-dependent conductance G σ in (a) and (c), and thermopower S σ in (b) and (d) as functions of the chemical potential μ for different values of the dots’ separation ak_F with fixed level detuning Δ = Γ / 2 . The other parameters are the same as those in Fig. 2.