Objective Spintronics is motivated by the quest for the next-generation beyond-Moore electronics. The conventional approach that is based on single-electron spin currents does, however, not solve the thermodynamic bottleneck that is caused by the dissipation associated with moving electrons. A revolutionary new approach to electronics is based on information processing and transfer by means of magnons, i.e. quanta of the collective spin-wave excitations in magnets, so that the electrons do not move at all. On top of this application perspective, magnons give rise to completely new physical phenomena that arise due to magnonic collective effects and that do not fit the paradigm of single-electron spintronics.This shift from single-electron to collective degrees of freedom to carry spin current – in large part substantiated by a 2015 experimental breakthrough involving the PI – calls for the formulation of a new basic model that includes these novel collective phenomena on equal footing with single-particle spin currents. It is the central and unifying scientific goal of this theoretical-physics proposal to develop this model. We focus on three material systems: ferromagnetic insulators, ferromagnetic metals, and antiferromagnets, and for each of these the objective is to bring out the new physics that arises due to i) coupled spin-heat transport in the linear-response regime, ii) collective effects in spin valves, and iii) magnon Bose-Einstein condensation and spin superfluidity. The latter paves the way for “magnon superspintronics”, the integration of room-temperature spin superfluidity with spintronics. In terms of methodology the proposed research spans the spectrum from phenomenological hydrodynamic theory to evaluation of the various bulk and interface parameters from microscopic descriptions. Our recent work gives us, combined with our background in cold-atom systems, a head start to carry out the proposed research. Fields of science natural sciencesphysical scienceselectromagnetism and electronicsspintronicsnatural sciencescomputer and information sciencesdata sciencedata processing Keywords SPINBEYOND Programme(s) H2020-EU.1.1. - EXCELLENT SCIENCE - European Research Council (ERC) Main Programme Topic(s) ERC-2016-COG - ERC Consolidator Grant Call for proposal ERC-2016-COG See other projects for this call Funding Scheme ERC-COG - Consolidator Grant Host institution UNIVERSITEIT UTRECHT Net EU contribution € 1 617 500,00 Address HEIDELBERGLAAN 8 3584 CS Utrecht Netherlands See on map Region West-Nederland Utrecht Utrecht Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Total cost € 1 617 500,00 Beneficiaries (1) Sort alphabetically Sort by Net EU contribution Expand all Collapse all UNIVERSITEIT UTRECHT Netherlands Net EU contribution € 1 617 500,00 Address HEIDELBERGLAAN 8 3584 CS Utrecht See on map Region West-Nederland Utrecht Utrecht Activity type Higher or Secondary Education Establishments Links Contact the organisation Opens in new window Website Opens in new window Participation in EU R&I programmes Opens in new window HORIZON collaboration network Opens in new window Total cost € 1 617 500,00