Electrical voltage by electron spin-vorticity coupling in laminar ducts
Hamid Tabaei Kazerooni, Georgy Zinchenko, Jörg Schumacher, Christian Cierpka
Abstract
A tiny electrical voltage can be generated by the collective coupling of the electron spins to the flow vorticity in laminar and turbulent liquid metal flows. Here, we demonstrate a linear scaling law between electrical voltage and pressure drop for laminar flows through capillaries with different cross sections, both, analytically and experimentally.
Topics & Concepts
Laminar flowVorticitySpinsTurbulenceMechanicsPhysicsCondensed matter physicsCoupling (piping)Pressure dropVoltageMaterials scienceClassical mechanicsVortexQuantum mechanicsMetallurgyElectrohydrodynamics and Fluid DynamicsCharacterization and Applications of Magnetic NanoparticlesMagnetic properties of thin films