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Terahertz Electrodynamics in Transition Metal Oxides
Author(s) -
Kumar Kadakuntla Santhosh,
Prajapati Gulloo Lal,
Dagar Rahul,
Vagadia Megha,
Rana Dhanvir Singh,
Tonouchi Masayoshi
Publication year - 2020
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201900958
Subject(s) - quasiparticle , terahertz radiation , colossal magnetoresistance , condensed matter physics , multiferroics , materials science , dielectric , spectroscopy , superconductivity , terahertz spectroscopy and technology , graphene , physics , magnetoresistance , engineering physics , magnetic field , nanotechnology , optoelectronics , ferroelectricity , quantum mechanics
Transition metal oxides (TMOs) are among the most contemporary topics in condensed matter research. For over the past three decades, the most astounding discoveries of high temperature superconductivity, colossal magnetoresistance, multiferroics, topological matter, and several other novel electronic and magnetic phases have been realized and hosted in the TMOs. Almost simultaneously and specifically during the past 5 years, the implementation of terahertz (THz) spectroscopy to unveil the complexity of such materials has delivered unprecedented success. THz spectroscopy extracts material parameters such as dynamic conductivity, dielectric constant, and magnetic permeability in spectral range of 1–20 meV. This imparts the capability to probe a variety of quasiparticles emerging from the electrodynamics of collective, bound and free charge carriers, and complex spin orders, which is the key to decode the complex phases of TMOs class of quantum matter. Herein, the THz spectroscopic investigations of quasiparticle electrodynamics of correlated TMOs are reviewed. Several long‐standing issues are resolved and there is enormous potential for a lot more to offer, emphasizing the growing indispensability of THz technology in condensed matter.