Exotic magnetic anisotropy near digitized dimensional Mott boundary

Abstract

The magnetic anisotropy of low-dimensional Mott systems exhibits unexpected magnetotransport behavior useful for spin-based quantum electronics. Yet, the anisotropy of natural materials is inherently determined by the crystal structure, highly limiting its engineering. We demonstrate the magnetic anisotropy modulation near a digitized dimensional Mott boundary in artificial superlattices composed of a correlated magnetic monolayer SrRuO3 and nonmagnetic SrTiO3. The magnetic anisotropy is initially engineered by modulating the interlayer coupling strength between the magnetic monolayers. Interestingly, when the interlayer coupling strength is maximized, a nearly degenerate state is realized, in which the anisotropic magnetotransport is strongly influenced by both the thermal and magnetic energy scales. Our results offer a new digitized control for magnetic anisotropy in low-dimensional Mott systems, inspiring promising integration of Mottronics and spintronics.

arXiv comment30 pages

References in corpus (24)

• Discovery of intrinsic ferromagnetism in 2D van der Waals crystals
• $\alpha$-RuCl3: a Spin-Orbit Assisted Mott Insulator on a Honeycomb Lattice
• Dimensionality Control of Electronic Phase Transitions in Nickel-Oxide Superlattices
• Universality of the Mott-Ioffe-Regel limit in metals
• Critical thickness for itinerant ferromagnetism in ultrathin films of SrRuO${}_3$
• Engineering spin-orbital magnetic insulator by tailoring superlattices
• Higgs mode and its decay in a two dimensional antiferromagnet
• Quantum confinement of Mott electrons in ultrathin LaNiO3/LaAlO3 superlattice
• Manipulating Berry curvature of SrRuO3 thin films via epitaxial strain
• Magnetic Anisotropy in Spin-3/2 with Heavy Ligand in Honeycomb Mott Insulators: Application to CrI${}_3$
• Correlation-driven eightfold magnetic anisotropy in a two-dimensional oxide monolayer
• Propagation control of octahedral tilt in SrRuO3 via artificial heterostructuring
• Fractionalized fermionic quantum criticality in spin-orbital Mott insulators
• Unconventional interlayer exchange coupling via chiral phonons in synthetic magnetic oxide heterostructures
• Current-induced giant diamagnetism in the Mott insulator Ca2RuO4
• Electronically driven spin-reorientation transition of the correlated polar metal Ca${}_3$Ru${}_2$O${}_7$
• Phase Instability amid Dimensional Crossover in Artificial Oxide Crystal
• The Jeff=1/2 antiferromagnet Sr2IrO4: A golden avenue toward new physics and functions
• Orbitally-driven Behavior: Mott Transition, Quantum Oscillations and Colossal Magnetoresistance in Bilayered Ca3Ru2O7
• Correlated Quantum Phenomena of Spin-Orbit Coupled Perovskite Oxide Heterostructures: Cases of SrRuO3 and SrIrO3-Based Artificial Superlattices
• Tailoring topological Hall effect in SrRuO3/SrTiO3 superlattices
• Atomistic Engineering of Phonons in Functional Oxide Heterostructures
• Magnetic ground state of SrRuO${}_3$ thin film and applicability of standard first-principles approximations to metallic magnetism
• Symmetry-Driven Spin-Wave Gap Modulation in Nanolayered SrRuO3/SrTiO3 Heterostructures: Implications for Spintronic Applications

Cited by in corpus (1)

• Strain Engineering of van Hove Singularity and Coupled Itinerant Ferromagnetism in Quasi-2D Oxide Superlattices