Upon reduction of the film thickness we observe a metal-insulator transition in epitaxially stabilized, spin-orbit-coupled SrIrO3 ultrathin films. By comparison of the experimental electronic dispersions with density functional theory at various levels of complexity we identify the leading microscopic mechanisms, i.e., a dimensionality-induced readjustment of octahedral rotations, magnetism, and electronic correlations. The astonishing resemblance of the band structure in the two-dimensional limit to that of bulk Sr2IrO4 opens new avenues to unconventional superconductivity by "clean" electron doping through electric field gating.
Schütz, P., Di Sante, D., Dudy, L., Gabel, J., Stübinger, M., Kamp, M., et al. (2017). Dimensionality-Driven Metal-Insulator Transition in Spin-Orbit-Coupled SrIrO3. PHYSICAL REVIEW LETTERS, 119(25), 256404-256404 [10.1103/PhysRevLett.119.256404].
Dimensionality-Driven Metal-Insulator Transition in Spin-Orbit-Coupled SrIrO3
Di Sante, D.Secondo
Membro del Collaboration Group
;
2017
Abstract
Upon reduction of the film thickness we observe a metal-insulator transition in epitaxially stabilized, spin-orbit-coupled SrIrO3 ultrathin films. By comparison of the experimental electronic dispersions with density functional theory at various levels of complexity we identify the leading microscopic mechanisms, i.e., a dimensionality-induced readjustment of octahedral rotations, magnetism, and electronic correlations. The astonishing resemblance of the band structure in the two-dimensional limit to that of bulk Sr2IrO4 opens new avenues to unconventional superconductivity by "clean" electron doping through electric field gating.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
