2020/12/22 by Hyun Seo, Hyun Il Seo, Sungmin Woo +4
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #Computer science #Condensed matter physics #Curse of dimensionality #Electronic and Structural Properties of Oxides #Epitaxy #Ferromagnetism #Lattice (music) #Layer (electronics) #Machine learning #Magnetic and transport properties of perovskites and related materials #Magnon #Materials science #Nanotechnology #Physics #Thin film #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.103.045104
published as Phys. Rev. B 103, 045104 (2021) · 17 pages, 7 figures, 1 table, and 1 appendix
arxiv created 2020/12/22 · openalex created_date 2021/01/05 · openalex publication_date 2021/01/05 · arxiv updated 2021/01/07 · openalex updated_date 2026/08/05
SrRuO3 (SRO) is an itinerant ferromagnet with strong coupling between the charge, spin, and lattice degrees of freedom. This strong coupling suggests that the electronic and magnetic behaviors of SRO are highly susceptible to changes in the lattice distortion. Here we show how the spin interaction and resultant magnon formation change with the modification in the crystallographic orientation of SRO thin films. We fabricated SRO epitaxial thin films with (100), (110), and (111) surface orientations, to systematically modulate the spin interaction and spin dimensionality. The reduced spin dimensionality and enhanced exchange interaction in the (111)-oriented SRO thin film significantly suppress magnon formation. Our study comprehensively demonstrates the facile tunability of magnon formation and spin interaction in correlated oxide thin films.