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

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.

References in corpus (1)

• Enhanced metallic properties of SrRuO3 thin films via kinetically controlled pulsed laser epitaxy

Cited by in corpus (7)

• Observation of spin-orbit excitations and Hund's multiplets in Ca${}_2$RuO${}_4$
• Electronic and vibrational signatures of ruthenium vacancies in Sr${}_2$RuO${}_4$ thin films
• Altermagnetism in Two Dimensional Ca${}_2$RuO${}_4$ Perovskite
• Nature of the current-induced insulator-to-metal transition in Ca${}_2$RuO${}_4$ as revealed by transport-ARPES
• Coupled spin-orbital fluctuations in a three orbital model for $4d$ and $5d$ oxides with electron fillings $n=3,4,5$ -- Application to $\mathrm{NaOs}{\mathrm{O}}_3$, $\mathrm{C}{\mathrm{a}}_2\mathrm{Ru}{\mathrm{O}}_4$, and $\mathrm{S}{\mathrm{r}}_2\mathrm{Ir}{\mathrm{O}}_4$
• Critical magnetic fluctuations in the layered ruthenates Ca${}_2$RuO${}_4$ and Ca${}_3$Ru${}_2$O${}_7$
• Universal size-dependent nonlinear charge transport in single crystals of the Mott insulator Ca${}_2$RuO${}_4$