D. Di Sante
- Dimensionality-Driven Metal-Insulator Transition in Spin-Orbit-Coupled SrIrO3
- Physical Review Letters
- Volume | Issue number
- 119 | 25
- Article number
- Number of pages
- Document type
- Faculty of Science (FNWI)
- Van der Waals-Zeeman Institute (WZI)
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.
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- © 2017 American Physical Society
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