Temperature Dependence of the FIR Reflectance of LaSrGaO4

TL;DR

This study investigates how the far-infrared reflectance of LaSrGaO4 varies with temperature by measuring and analyzing its optical properties along different crystal axes using reflectance spectra and Kramers-Kronig analysis.

Contribution

It provides detailed temperature-dependent optical data and models for LaSrGaO4 using Lorentzian oscillator fits, enhancing understanding of its infrared optical behavior.

Findings

Reflectance measured from 50 to 40000 cm^-1 along 'a' and 'c' axes.

Optical properties derived via Kramers-Kronig analysis.

Reflectance curves fitted with Lorentzian oscillators.

Abstract

The reflectance of single crystal LaSrGaO4 has been measured from approx 50 to 40000 cm^-1 along the "a" and "c" axis. The optical properties have been calculated from a Kramers-Kronig analysis of the reflectance for both polarizations. The reflectance curves have been fit using a product of Lorentzian oscillators.