Electrodynamics of correlated electron matter

Abstract

Infrared spectroscopy has emerged as a premier experimental technique to probe enigmatic effects arising from strong correlations in solids. Here we report on recent advances in this area focusing on common patterns in correlated electron systems including transition metal oxides, intermetallics and organic conductors. All these materials are highly conducting substances but their electrodynamic response is profoundly different from the canonical Drude behavior observed in simple metals. These unconventional properties can be attributed in several cases to the formation of spin and/or charge ordered states, zero temperature phase transitions and strong coupling to bosonic modes.

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• Constant effective mass across the phase diagram of high-T${}_c$ cuprates
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• The Anomalous Hall Effect in YBa${}_2$Cu${}_3$O${}_7$
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• Infrared absorption from Charge Density Waves in magnetic manganites
• Linear and nonlinear optical characteristics of the Falicov-Kimball model
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• Extracting the electron--boson spectral function ${\alpha }^2$F($\omega$) from infrared and photoemission data using inverse theory
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• Infrared and optical spectroscopy of alpha and gamma-phase Ce
• Sum rules and electrodynamics of high-Tc cuprates in the pseudogap state
• Singularities in the optical response of cuprates
• Kondo Scaling in the Optical Response of YbIn_(1-x)Ag_xCu_4
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• Collective Spin-Density-Wave Response Perpendicular to the Chains of the Quasi One-Dimensional Conductor (TMTSF)2PF6
• The differential sum rule for the relaxation rate in dirty superconductors
• The differential sum rule for the relaxation rate in the cuprates

Cited by in corpus (18)

• Electrodynamics of the vanadium oxides VO2 and V2O3
• Infrared spectroscopy and nano-imaging of the insulator-to-metal transition in vanadium dioxide
• Electrodynamics of electron doped iron-pnictide superconductors: Normal state properties
• Optical Properties of III-Mn-V Ferromagnetic Semiconductors
• Effects of the magnetic orderings on the dynamical conductivity: optical investigations of EuFe${}_2$As${}_2$ single crystals
• Bandwidth-controlled Mott transition in kappa-(BEDT-TTF)2Cu[N(CN)2]Br{x}Cl{1-x}: Optical studies of correlated carriers
• The Missing Link: Magnetism and Superconductivity
• Microwave spectroscopy on heavy-fermion systems: probing the dynamics of charges and magnetic moments
• Conductivity of Strongly Coupled Striped Superconductor
• Theory of non-Fermi liquid and pairing in electron-doped cuprates
• Optical conductivity of nodal metals
• Perfect separation of intraband and interband excitations in PdCoO${}_2$
• Normal state charge dynamics of Fe1.06Te0.88S0.14 superconductor probed with infrared spectroscopy
• Fabrication and Low Temperature Thermoelectric Properties of Na_xCoO_2 (x = 0.68 and 0.75) Epitaxial Films by the Reactive Solid-Phase Epitaxy
• Signatures of electron-boson coupling in half-metallic ferromagnet Mn${}_5$Ge${}_3$: study of electron self-energy $\Sigma (\omega )$ obtained from infrared spectroscopy
• Incoherent mid-infrared charge excitation and the high energy anomaly in the photoemission spectra of cuprates
• Self-consistent Eliashberg theory, Tc, and the gap function in electron-doped cuprates
• Shielded cantilever with on-chip interferometer circuit for THz scanning probe impedance microscopy