Tailoring the electronic properties of Ca$_2$RuO$_4$ via epitaxial strain

C. Dietl; S. K. Sinha; G. Christiani; Y. Khaydukov; T. Keller; D. Putzky; S. Ibrahimkutty; P. Wochner; G. Logvenov; P. A. van Aken; B. J. Kim; B. Keimer

doi:10.1063/1.5007680

paper

Tailoring the electronic properties of Ca $_{2}$ RuO $_{4}$ via epitaxial strain

arXiv:1710.01676 · doi:10.1063/1.5007680

Abstract

We report the synthesis of Ca $_{2}$ RuO $_{4}$ thin films on NdCaAlO $_{4}$ (110), LaAlO $_{3}$ (100) and LaSrAlO $_{4}$ (001) substrates and show that epitaxial strain induces a transition from the Mott-insulating phase of bulk Ca $_{2}$ RuO $_{4}$ into a metallic phase. Magnetometry and spin-polarized neutron reflectometry reveal a low-temperature, small-moment ferromagnetic state in metallic Ca $_{2}$ RuO $_{4}$ films.

Tailoring the electronic properties of Ca2​RuO4​ via epitaxial strain

Abstract

Tailoring the electronic properties of Ca $_{2}$ RuO $_{4}$ via epitaxial strain