Strongly Correlated Materials

Abstract

Strongly correlated materials are profoundly affected by the repulsive electron-electron interaction. This stands in contrast to many commonly used materials such as silicon and aluminum, whose properties are comparatively unaffected by the Coulomb repulsion. Correlated materials often have remarkable properties and transitions between distinct, competing phases with dramatically different electronic and magnetic orders. These rich phenomena are fascinating from the basic science perspective and offer possibilities for technological applications. This article looks at these materials through the lens of research performed at Rice University. Topics examined include: Quantum phase transitions and quantum criticality in "heavy fermion" materials and the iron pnictide high temperature superconductors; computational ab initio methods to examine strongly correlated materials and their interface with analytical theory techniques; layered dichalcogenides as example correlated materials with rich phases (charge density waves, superconductivity, hard ferromagnetism) that may be tuned by composition, pressure, and magnetic field; and nanostructure methods applied to the correlated oxides VO2 and Fe3O4, where metal-insulator transitions can be manipulated by doping at the nanoscale or driving the system out of equilibrium. We conclude with a discussion of the exciting prospects for this class of materials.

62 pages, 26 figures

References in corpus (42)

• Superconductivity at 38 K in the iron arsenide (Ba1-xKx)Fe2As2
• Magnetic Order versus superconductivity in the Iron-based layered La(O1-xFx)FeAs systems
• Fermi-liquid instabilities at magnetic quantum phase transitions
• Mott transition in VO2 revealed by infrared spectroscopy and nano-imaging
• Quantum Criticality in Heavy Fermion Metals
• Near-degeneracy of several pairing channels in multiorbital models for the Fe-pnictides
• Strong Correlations and Magnetic Frustration in the High Tc Iron Pnictides
• Theory of Electron Nematic Order in LaOFeAs
• Quantum criticality
• Origin of the ~150 K Anomaly in LaOFeAs; Competing Antiferromagnetic Superexchange Interactions, Frustration, and Structural Phase Transition
• Correlated electronic structure of LaOFeAs
• Hidden Magnetism and Quantum Criticality in the Heavy Fermion Superconductor CeRhIn5
• Ising and Spin orders in Iron-based Superconductors
• Quasiparticle self-consistent $GW$ method; a basis for the independent-particle approximation
• Fe-based high temperature superconductivity with Tc=31K bordering an insulating antiferromagnet in (Tl,K)FexSe2 Crystals
• Pairing Symmetry in a Two-Orbital Exchange Coupling Model of Oxypnictides
• Superconductivity up to 30 K in the vicinity of quantum critical point in BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$
• Origin of the spin density wave instability in AFe${}_2$As${}_2$ (A=Ba, Sr) as revealed by optical spectroscopy
• VO2: A Novel View from Band Theory
• Magnetically driven superconductivity in CeCu2Si2
• Multiple energy scales at a quantum critical point
• Iron pnictides as a new setting for quantum criticality
• Semimetal to semimetal charge density wave transition in 1T-TiSe${}_2$
• Multiple Avalanches Across the Metal-Insulator Transition of Vanadium Oxide Nano-scaled Junctions
• Electrically-driven phase transition in magnetite nanostructures
• Temperature-dependent contact resistances in high-quality polymer field-effect transistors
• LDA+DMFT computation of the electronic spectrum of NiO
• Mechanism of the Verwey transition in magnetite
• Bandwidth-controlled Mott transition in $\kappa -(BEDT-TTF{)}_{2}Cu[N(CN{)}_2]B{r}_{x}C{l}_{1-x}$ I. Optical studies of localized charge excitations
• Bulk magnetic order in a two dimensional Ni1+/Ni2+ (d9/d8) nickelate, isoelectronic with superconducting cuprates
• Mott transition in Modulated Lattices and Parent Insulator of (K,Tl)yFexSe2 Superconductors
• Theory for Superconductivity in Iron Pnictides at Large Coulomb U Limit
• Quantum and classical mode softening near the charge-density-wave/superconductor transition of Cu${}_x$TiSe${}_2$: Raman spectroscopic studies
• Signatures of Electronic Correlations in Optical Properties of LaFeAsO${}_{1-x}$F${}_x$
• Layered Kondo lattice model for quantum critical beta-YbAlB4
• Nanogaps with very large aspect ratios for electrical measurements
• Field-induced metal-insulator transition and switching phenomenon in correlated insulators
• The origin of hysteresis in resistive switching in magnetite is Joule heating
• Nonlinear current-voltage behavior and electrically driven phase transition in charge frustrated LuFe2O4
• Pinning frequencies of the collective modes in $\alpha$-uranium
• Entropy accumulation near quantum critical points: effects beyond hyperscaling
• Local-moment ferromagnetism and unusual magnetic domains in Fe${}_{1/4}$TaS${}_2$ crystals

Cited by in corpus (44)

• Density Matrix Embedding from Broken Symmetry Lattice Mean-Fields
• Electronic correlations and flattened band in magnetic Weyl semimetal candidate Co3Sn2S2
• In situ diffraction study of catalytic hydrogenation of VO2: Stable phases and origins of metallicity
• Growth control of the oxidation state in vanadium oxide thin films
• Systematic improvability in quantum embedding for real materials
• Ramp Reversal Memory and Phase-Boundary Scarring in Transition Metal Oxides
• Selective high frequency mechanical actuation driven by the VO2 electronic instability
• Magnetotransport in Fe-intercalated \textit{T}S${}_2$: the comparison between \textit{T} = Ti and Ta
• Compositional phase stability of correlated electron materials within DFT+DMFT
• Separating electric field and thermal effects across the metal-insulator transition in vanadium oxide nanobeams
• Ultrafast transient increase of oxygen octahedral rotations in a perovskite
• Reversible oxygen vacancies doping in (La${}_{0.7}$,Sr${}_{0.3}$)MnO${}_3$ microbridges by combined self-heating and electromigration
• Compositional phase stability of strongly correlated electron materials within DFT+$U$
• Hidden orders in spin-orbit entangled correlated insulators
• Artificial Atoms Based on Correlated Materials
• Transient quantum isolation and critical behavior in the magnetization dynamics of half-metallic manganites
• Cu-NMR study of oxygen disorder in ortho-II YBa2Cu3Oy
• Spin-orbit coupled correlated metal phase in Kondo lattices: an implementation with alkaline-earth atoms
• Observation of emergent scaling of spin-charge correlations at the onset of the pseudogap
• Deep learning of many-body observables and quantum information scrambling
• Unconventional transport properties of an itinerant ferromagnet: EuTi${}_{1-x}$Nb${}_x$O${}_3$ ($x$=0.10$-$0.20)
• Electronic excitation spectra of the five-orbital Anderson impurity model: From the atomic limit to itinerant atomic magnetism
• Frequency-dependent and algebraic bath states for a Dynamical Mean-Field Theory with compact support
• High-Pressure Phase Diagram of NdFeAsO${}_{0.9}$F${}_{0.1}$: Disappearance of superconductivity on the verge of ferromagnetism from nd moments
• Bands renormalization and superconductivity in the strongly correlated Hubbard model using composite operators method
• Atomic-scale tracking of topological defect motion and incommensurate charge order melting
• Transport of Correlated Electrons through Disordered Chains: A Perspective on Entanglement, Conductance, and Disorder Averaging
• $\text{Ab initio}$ dynamical mean-field theory with natural orbitals renormalization group impurity solver: Formalism and applications
• Suppression of Bogoliubov momentum pairing and emergence of non-Gaussian correlations in ultracold interacting Bose gases
• Magneto-optical Spectroscopy with RAMBO: A Table-Top 30 T Magnet
• Optically induced symmetry breaking due to nonequilibrium steady state formation in charge density wave material 1T-TiSe2
• Hard X-ray photoemission spectroscopy of LaVO${}_3$/SrTiO${}_3$: Band alignment and electronic reconstruction
• Quantum subspace expansion approach for simulating dynamical response functions of Kitaev spin liquids
• Sample generation for the spin-fermion model using neural networks
• A proposal for realizing Majorana fermions without external magnetic field in strongly correlated nanowires
• Antiferromagnetic and bond-order-wave phases in the half-filled two-dimensional optical Su-Schrieffer-Heeger-Hubbard model
• Charge-density-wave control by adatom manipulation and its effect on magnetic nanostructures
• Ferromagnetism in layered metallic Fe1/4TaS2 in the presence of conventional and Dirac carriers
• Effects of external pressure on the narrow gap semiconductor Ce${}_3$Cd${}_2$As${}_6$
• Bootstrap Embedding for Interacting Electrons in Phonon Coherent-state Mean Field
• Quantitative Description of Strongly Correlated Materials by Combining Downfolding Techniques and Tensor Networks
• Coexistence of superconductivity and charge density wave in a correlated regime
• Metal-Insulator transition in optical lattice system with site-dependent interactions
• The Frenkel line and the pseudogap: an analogy between classical and electronic fluids