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- ItemStrain-stabilized superconductivity([London] : Nature Publishing Group UK, 2021) Ruf, J.P.; Paik, H.; Schreiber, N.J.; Nair, H.P.; Miao, L.; Kawasaki, J.K.; Nelson, J.N.; Faeth, B.D.; Lee, Y.; Goodge, B.H.; Pamuk, B.; Fennie, C.J.; Kourkoutis, L.F.; Schlom, D.G.; Shen, K.M.Superconductivity is among the most fascinating and well-studied quantum states of matter. Despite over 100 years of research, a detailed understanding of how features of the normal-state electronic structure determine superconducting properties has remained elusive. For instance, the ability to deterministically enhance the superconducting transition temperature by design, rather than by serendipity, has been a long sought-after goal in condensed matter physics and materials science, but achieving this objective may require new tools, techniques and approaches. Here, we report the transmutation of a normal metal into a superconductor through the application of epitaxial strain. We demonstrate that synthesizing RuO2 thin films on (110)-oriented TiO2 substrates enhances the density of states near the Fermi level, which stabilizes superconductivity under strain, and suggests that a promising strategy to create new transition-metal superconductors is to apply judiciously chosen anisotropic strains that redistribute carriers within the low-energy manifold of d orbitals.
- ItemTowards Oxide Electronics: a Roadmap(Amsterdam : Elsevier B.V., 2019) Coll, M.; Fontcuberta, J.; Althammer, M.; Bibes, M.; Boschker, H.; Calleja, A.; Cheng, G.; Cuoco, M.; Dittmann, R.; Dkhil, B.; El Baggari, I.; Fanciulli, M.; Fina, I.; Fortunato, E.; Frontera, C.; Fujita, S.; Garcia, V.; Goennenwein, S.T.B.; Granqvist, C.-G.; Grollier, J.; Gross, R.; Hagfeldt, A.; Herranz, G.; Hono, K.; Houwman, E.; Huijben, M.; Kalaboukhov, A.; Keeble, D.J.; Koster, G.; Kourkoutis, L.F.; Levy, J.; Lira-Cantu, M.; MacManus-Driscoll, J.L.; Mannhart, J.; Martins, R.; Menzel, S.; Mikolajick, T.; Napari, M.; Nguyen, M.D.; Niklasson, G.; Paillard, C.; Panigrahi, S.; Rijnders, G.; Sánchez, F.; Sanchis, P.; Sanna, S.; Schlom, D.G.; Schroeder, U.; Shen, K.M.; Siemon, A.; Spreitzer, M.; Sukegawa, H.; Tamayo, R.; van den Brink, J.; Pryds, N.; Granozio, F.M.[No abstract available]