Extreme disorder in crystalline perovskite oxide: a new paradigm in quantum materials research

Abstract

Perovskite oxides ($AB$O${}_3$) have long been central to the advancement of modern condensed matter physics, owing to their rich and tunable electronic and magnetic properties. The quest to understand their various entangled phases has spurred the development of both cutting-edge experimental tools and innovative theoretical frameworks. In recent times, the emergence of high entropy oxides - materials in which five or more elements share a single crystallographic site - has introduced a powerful new paradigm in materials design. Embedding such extreme chemical disorder within the perovskite framework has opened vast opportunities for realizing novel physical phenomena inaccessible in conventional oxides. This review surveys the rapid advances in the synthesis, characterization, and exploration of the electronic and magnetic properties of compositionally complex perovskite oxides, offering key insights and highlighting promising avenues for future research.

arXiv commentInvited review article

References in corpus (40)

• Many-body localization, thermalization, and entanglement
• Quantum Spin Liquid States
• Understanding the role of entropy in high entropy oxides
• Distorted Perovskite with e_g^1 Configuration as a Frustrated Spin System
• Electronic Structure of Sr_2FeMoO_6
• Evidence for hydrodynamic electron flow in PdCoO${}_2$
• Mott transition and suppression of orbital fluctuations in orthorhombic 3$d^1$ perovskites
• Physics of ultrathin films and heterostructures of rare earth nickelates
• Emergent properties hidden in plane view: Strong electronic correlations at oxide interfaces
• High entropy oxides: An emerging prospect for magnetic rare earth - transition metal perovskites
• Mott--Hubbard transition vs. Anderson localization of correlated, disordered electrons
• Orbital effects in solids: basics, recent progress and opportunities
• Heterointerface engineered electronic and magnetic phases of NdNiO3 thin films
• What is in a Name: Defining -High Entropy- Oxides
• High entropy alloy superconductors -- status, opportunities and challenges
• Imaging phonon-mediated hydrodynamic flow in WTe2
• Ultra-high quality two-dimensional electron systems
• Metallicity and superconductivity in doped strontium titanate
• Spin-liquid-like state in a spin-1/2 square-lattice antiferromagnet perovskite induced by $d^{10}$-$d^0$ cation mixing
• Magnetic properties of rare earth and transition metal based perovskite type high entropy oxides
• Designer Magnetism in High Entropy Oxides
• Electron Glass Dynamics
• Epitaxial stabilization of ultra thin films of high entropy perovskite
• Magnetic anisotropy in single crystal high entropy perovskite oxide La(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3 films
• Mott Electrons in an Artificial Graphenelike Crystal of Rare-Earth Nickelate
• Disorder by Design: Unveiling Local Structure and Functional Insights in High Entropy Oxides
• Magnetic and Electrical Properties of high-entropy rare-earth manganites
• Perspective: Strongly correlated and topological states in [111] grown transition metal oxide thin films and heterostructures
• Unexpected crystalline homogeneity from the disordered bond network in La(Cr0.2Mn0.2Fe0.2Co0.2Ni0.2)O3 films
• Discovering High-Entropy Oxides with a Machine-Learning Interatomic Potential
• Photo-induced nonequilibrium states in Mott insulators
• Geometrical lattice engineering of complex oxide heterostructures: a designer approach to emergent quantum states
• Spin-wave excitations in the ferromagnetic-metallic and in the charge, orbital and spin ordered states in Nd${}_{1-x}$Sr${}_x$MnO${}_3$ with x$\approx$0.5
• Interplay between disorder and topology in Thouless pumping on a superconducting quantum processor
• Universality in quantum critical flow of charge and heat in ultra-clean graphene
• Embracing Disorder in Quantum Materials Design
• Chemically-Disordered Transparent Conductive Perovskites with High Crystalline Fidelity
• Developing fractional quantum Hall states at even-denominator fillings 1/6 and 1/8
• PERSPECTIVE: Emergent phases in rare earth nickelate heterostructures
• Janus-faced influence of oxygen vacancy in high entropy oxide films with Mott electrons