A spincaloritronic battery

Abstract

The thermoelectric performance of a topological energy converter is analyzed. The H-shaped device is based on a combination of transverse topological effects involving the spin: the inverse spin Hall effect and the spin Nernst effect. The device can convert a temperature drop in one arm into an electric power output in the other arm. Analytical expressions for the output voltage, the figure-of-merit (ZT) and energy converting efficiency are reported. We show that the output voltage and the ZT can be tuned by the geometry of the device and the physical properties of the material. Importantly, contrary to a conventional thermoelectric device, here a low electric conductivity may in fact enhance the ZT value, thereby opening a path to new strategies in optimizing the figure-of-merit.

12 pages, 3 figures, accepted by Phys. Rev. Applied

References in corpus (8)

• Valley polarization in MoS2 monolayers by optical pumping
• Theory of spin Hall magnetoresistance
• Theory of magnon-driven spin Seebeck effect
• Large and tunable photo-thermoelectric effect in single-layer MoS2
• Intrinsic spin Hall effect in monolayers of group-VI dichalcogenides: A first-principles study
• Thermoelectric Effects in Magnetic Nanostructures
• Scaling theory put into practice: first-principles modeling of transport in doped silicon nanowires
• Spin-valley relaxation and quantum transport regimes in two-dimensional transition metal dichalcogenides

Cited by in corpus (1)

• Topological Nonlinear Anomalous Nersnt Effect in Strained Transition Metal Dichalcogenides