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Magnetoelectric tuning of spin, valley, and layer-resolved anomalous Nernst effect in transition-metal
Yaser Hajati1,2, Mohammad Alipourzadeh2, Jamal Berakdar1
1Institut für Physik, Martin-Luther Universität Halle-Wittenberg, D-06099 Halle, Germany.
Abstract:
The anomalous Nernst coefficient (ANC) for transition-metal dichalcogenide (TMD) bilayers is studied with a focus on the interplay between layer pseudospin, spin, and valley degrees of freedom when electric and exchange fields are present. Breaking the inversion and time reversal symmetries via respectively electric and exchange fields results for bilayer TMDs in a spin-valley-layer polarized total ANC. Conditions are determined for controlling the spin, valley, and layer-resolved contributions via electric field tuning. Our results demonstrate the control of layer degree of freedom in bilayer TMDs magnetoelectrically which is of relevance for possible applications in spin/valley caloritronics.
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