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 (12)

• Structural and magnetic aspects of the metal insulator transition in Ca${}_{2-x}$Sr${}_x$RuO${}_4$
• Higgs mode and its decay in a two dimensional antiferromagnet
• Destruction of the Mott Insulating Ground State of Ca_2RuO_4 by a Structural Transition
• Magnetic Phase Diagram of Ca2-xSrxRuO4 Governed by Structural Distortions
• From Mott insulator to ferromagnetic metal: a pressure study of Ca${}_2$RuO${}_4$
• Strain Control of Fermiology and Many-Body Interactions in Two-Dimensional Ruthenates
• Orbital ordering transition in Ca${}_2$RuO${}_4$ observed with resonant x-ray diffraction
• Electron and orbital correlations in Ca_{2-x}Sr_{x}RuO_{4} probed by optical spectroscopy
• Raman scattering from Higgs mode oscillations in the two-dimensional antiferromagnet Ca${}_2$RuO${}_4$
• High pressure diffraction studies on Ca2RuO4
• Enhanced metallic properties of SrRuO3 thin films via kinetically controlled pulsed laser epitaxy
• Anisotropic uniaxial pressure response of the Mott insulator Ca2RuO4

Cited by in corpus (15)

• In-situ strain-tuning of the metal-insulator-transition of Ca${}_2$RuO${}_4$ in angle-resolved photoemission experiments
• Observation of spin-orbit excitations and Hund's multiplets in Ca${}_2$RuO${}_4$
• Lattice Energetics and Correlation-Driven Metal-Insulator Transitions: The Case of Ca${}_2$RuO${}_4$
• A Unique Crystal Structure of Ca${}_2$RuO${}_4$ in the Current Stabilized Semi-Metallic State
• Raman scattering from current-stabilized nonequilibrium phases in Ca${}_2$RuO${}_4$
• Co-appearance of superconductivity and ferromagnetism in a Ca${}_2$RuO${}_4$ nanofilm crystal
• Role of local temperature in the current-driven metal-insulator transition of Ca2RuO4
• Electronic and vibrational signatures of ruthenium vacancies in Sr${}_2$RuO${}_4$ thin films
• Altermagnetism in Two Dimensional Ca${}_2$RuO${}_4$ Perovskite
• Magnetic reorientation transition in a three orbital model for $\mathrm{C}{\mathrm{a}}_2\mathrm{Ru}{\mathrm{O}}_4$ -- Interplay of spin-orbit coupling, tetragonal distortion, and Coulomb interactions
• 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 $\mathrm{S}{\mathrm{r}}_2\mathrm{Ir}{\mathrm{O}}_4$
• Role of orbital off-diagonal spin and charge condensates in a three orbital model for $\mathrm{C}{\mathrm{a}}_2\mathrm{Ru}{\mathrm{O}}_4$ -- Coulomb renormalized spin-orbit coupling, orbital moment, and tunable magnetic order
• 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${}_4$