Ultrafast optical and far-infrared quasiparticle dynamics in correlated electron materials

RD Averitt, AJ Taylor - Journal of Physics: Condensed Matter, 2002 - iopscience.iop.org
We review the application of ultrafast optical spectroscopy in the study of correlated electron
materials. The emphasis is on all-optical pump–probe and optical pump–far-infrared probe …

Investigation study of optical and dielectric parameters using absorption and diffuse reflectance spectroscopy method on La0.57Nd0.1Sr0.13Ag0.2 MnO3 …

O Rejaiba, K Khirouni, MH Dhaou, B Alzahrani… - Optical and Quantum …, 2022 - Springer
Optical properties of a La0. 57Nd0. 1Sr0. 13Ag0. 2MnO3 polycrystalline sample prepared by
solid-state reaction were investigated. The FTIR spectra confirmed the formation of the …

Systematic trends in the electronic structure parameters of the transition-metal oxides Mo, Ru, and Rh)

YS Lee, JS Lee, TW Noh, DY Byun, KS Yoo… - Physical Review B, 2003 - APS
We investigated the electronic structures of the perovskite-type 4 d transition-metal oxides Sr
MO 3 (M= Zr, Mo, Ru, and Rh) using their optical conductivity spectra σ (ω). The interband …

Spectroscopic studies on the metal–insulator transition mechanism in correlated materials

SY Kim, MC Lee, G Han, M Kratochvilova… - Advanced …, 2018 - Wiley Online Library
The metal–insulator transition (MIT) in correlated materials is a novel phenomenon that
accompanies a large change in resistivity, often many orders of magnitude. It is important in …

Metal-insulator transition in a disordered and correlated system: Changes in transport properties, optical spectra, and electronic structure

KW Kim, JS Lee, TW Noh, SR Lee, K Char - Physical Review B—Condensed …, 2005 - APS
We investigated the transport and optical properties of Sr Ti 1− x Ru x O 3 (0⩽ x⩽ 1) which
shows a metal-insulator transition at x about 0.5 at room temperature. While Sr Ru O 3 is a …

Electron and Orbital Correlations in Probed by Optical Spectroscopy

JS Lee, YS Lee, TW Noh, SJ Oh, J Yu, S Nakatsuji… - Physical review …, 2002 - APS
The optical conductivity spectra of the quasi-two-dimensional C a 2-x S rx R u O 4 (0.0≤ x≤
2.0) system were investigated. In the Mott insulating state, two electron correlation-induced …

Metal-insulator transition in manganites: changes in optical conductivity up to 22 eV

A Rusydi, R Rauer, G Neuber, M Bastjan, I Mahns… - Physical Review B …, 2008 - APS
The electronic response of doped manganites at the transition from the paramagnetic
insulating to the ferromagnetic metallic state in La 1− x Ca x MnO 3 for x= 0.3 and 0.2 was …

Magnetic and optical properties of multiferroic GdMnO3 nanoparticles

XL Wang, D Li, TY Cui, P Kharel, W Liu… - Journal of Applied …, 2010 - pubs.aip.org
The magnetic and optical properties of multiferroic GdMnO 3 nanoparticles synthesized by a
polymerized complex method have been investigated. The GdMnO 3 nanoparticles …

Observation of charge-density-wave excitations in manganites

A Nucara, P Maselli, P Calvani, R Sopracase… - Physical review …, 2008 - APS
In the optical conductivity of four different manganites with commensurate charge order
(CO), strong peaks appear in the meV range below the ordering temperature T CO. They are …

Effect of Orbital Rotation and Mixing on the Optical Properties <?format ?>of Orthorhombic (, Pr, Nd, Gd, and Tb)

MW Kim, SJ Moon, JH Jung, J Yu, S Parashar… - Physical review …, 2006 - APS
We investigated the ab-plane absorption spectra of R MnO 3 (R= La, Pr, Nd, Gd, and Tb) thin
films. As the ionic radius of the R ion decreases, we observed a drastic suppression of the 2 …