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, ‡}

Evolution of the spin-dependent conductance G σ in (a) and (c), and thermopower S σ in (b) and (d) with the system temperature and the magnetic flux, respectively. The chemical potential μ is chosen as 1.04 Γ where the spin-down thermopower S ↓ develops a peak. The dots’ level detuning is Δ = Γ / 2 and the other parameters are the same as those in Fig. 2.