2012/11/26 by Z. Q. Liu, Y. Ming, M. Yang +11
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Electronic and Structural Properties of Oxides #Electronic structure #Ferromagnetism #Magnetic and transport properties of perovskites and related materials #Superlattice #Thin film #Transition metal #Transition temperature #cond-mat.mtrl-sci #cond-mat.str-el
paper · pdf · doi:10.1063/1.4768230
published as Applied Physics Letters 101, 223105 (2012) · 19 pages, 5 figures, 1 table
openalex publication_date 2012/11/26 · arxiv created 2013/02/13 · arxiv updated 2013/02/14 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The electronic properties of SrRuO3/LaAlO3 (SRO/LAO) superlattices with different interlayer thicknesses of SRO layers were studied. As the thickness of SRO layers is reduced, the superlattices exhibit a metal-insulator transition implying transformation into a more localized state from its original bulk metallic state. The strain effect on the metal-insulator transition was also examined. The origin of the metal-insulator transition in ultrathin SRO film is discussed. All the superlattices, even those with SRO layers as thin as 2 unit cells, are ferromagnetic at low temperatures. Moreover, we demonstrate field effect devices based on such multilayer superlattice structures.