Dimensionality and Strain Control in (SrRuO₃)m/(SrTiO₃)n Superlattices Grown by Pulsed-Laser Deposition

We grow [(SrRuO₃)m/(SrTiO₃)n] ×30 superlattices on SrTiO₃ (STO), GdScO₃ (GSO), and DyScO₃ (DSO) substrates via pulsed laser deposition to study dimensional confinement with biaxial strain changes. By holding the SRO thickness constant and varying n, we systematically tune octahedral connectivity and interlayer coupling. Temperature, field, and angle-dependent resistivity and Hall measurements reveal carrier density, mobility, dominant scattering mechanisms, and magnetic ordering through Anisotropic Magneto Resistance (AMR) and Anomalous Hall Effect  (AHE). X-ray magnetic circular dichroism (XMCD) quantified the element-specific Ru moment magnitude and anisotropy. By comparing the substrates and STO layer thicknesses, we will show how strain and dimensionality jointly influence electronic and magnetic behaviors. These findings provide insights into the interplay of lattice symmetry, orbital hybridization, and spin polarization.