Strain control of electric and magnetic properties in the iridate heterostructure
Abstract
The promising quantum phenomena in Ruddlesden-Popper series iridates (Srn+1IrnO3n+1) have made them a playground to study exotic electronic and magnetic properties. The competition between crystal field splitting, Coulomb repulsion, and spin-orbit coupling in comparable energy scales allows minimal structural and electronic perturbations to drastically alter their ground states. While the bulk Srn+1IrnO3n+1 crystals offer limited structural flexibility, the choice of the artificially stacked [(SrIrO3)n, (SrTiO3)] superlattices can elevate structural tuning of the competing interactions to a higher degree. In our recent work, we have synthesized a series of [(SrIrO3)n, (SrTiO3)] superlattices with various lattice mismatch. Results from structural characterization, transport measurements and magnetic moment measurement indicate strong structural modulability of macroscopic electronic and magnetic properties in the iridates.
J.L. acknowledges the support by the Science Alliance Joint Directed Research & Development Program and the Transdisciplinary Academy Program at the University of Tennessee, DOD-DARPA under Grant No. HR0011-16-1-0005.- Publication:
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APS March Meeting Abstracts
- Pub Date:
- 2018
- Bibcode:
- 2018APS..MARX23013Y