Infrared reflectivity of SrRuO3

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We discuss the infrared reflectivity of strontium rutenate, SrRuO3, measured from 40 cm-1 to 10000 cm-1. The relative high reflectance at low frequencies and the semimetallic behavior at values between 300 cm-1 and 1900 cm-1 found in this compound is in accordance with a system with relatively free...

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Autores principales:	De La Cruz, F.P., Massa, N.E., Cuffini, S.L., Carbonio, R.E.
Formato:	JOUR
Materias:	Electrons Infrared spectroscopy Light absorption Light reflection Mathematical transformations Numerical analysis Phonons Photoconductivity Kramers-Kronig analysis Multioscillator analyses Optical conductivity Orthorhombic structure Reflectivity decays Semimetallic behavior Solid state synthesis Strontium rutenate Strontium compounds
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00150193_v185_n1-4_p277_DeLaCruz
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00150193_v185_n1-4_p277_DeLaCruz
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spelling	todo:paper_00150193_v185_n1-4_p277_DeLaCruz2023-10-03T14:13:21Z Infrared reflectivity of SrRuO3 De La Cruz, F.P. Massa, N.E. Cuffini, S.L. Carbonio, R.E. Electrons Infrared spectroscopy Light absorption Light reflection Mathematical transformations Numerical analysis Phonons Photoconductivity Kramers-Kronig analysis Multioscillator analyses Optical conductivity Orthorhombic structure Reflectivity decays Semimetallic behavior Solid state synthesis Strontium rutenate Strontium compounds We discuss the infrared reflectivity of strontium rutenate, SrRuO3, measured from 40 cm-1 to 10000 cm-1. The relative high reflectance at low frequencies and the semimetallic behavior at values between 300 cm-1 and 1900 cm-1 found in this compound is in accordance with a system with relatively free carriers. Two weak absorptions at about 450 cm-1 and 800 cm-1 are assigned to the interaction between electrons and longitudinal phonons . The reflectivity decays rather sharply up to about 3900 cm-1 and then decreases asymptotically at higher energies. From Kramers-Kronig and multioscillator analyses we obtain the effective carrier number N* = 7.07 1018 cm-3, the effective mobility μ* = 142.6 cm2V-1sec-1 and the optical conductivity σo = 175.6 Ω-1cm-1. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00150193_v185_n1-4_p277_DeLaCruz
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Electrons Infrared spectroscopy Light absorption Light reflection Mathematical transformations Numerical analysis Phonons Photoconductivity Kramers-Kronig analysis Multioscillator analyses Optical conductivity Orthorhombic structure Reflectivity decays Semimetallic behavior Solid state synthesis Strontium rutenate Strontium compounds
spellingShingle	Electrons Infrared spectroscopy Light absorption Light reflection Mathematical transformations Numerical analysis Phonons Photoconductivity Kramers-Kronig analysis Multioscillator analyses Optical conductivity Orthorhombic structure Reflectivity decays Semimetallic behavior Solid state synthesis Strontium rutenate Strontium compounds De La Cruz, F.P. Massa, N.E. Cuffini, S.L. Carbonio, R.E. Infrared reflectivity of SrRuO3
topic_facet	Electrons Infrared spectroscopy Light absorption Light reflection Mathematical transformations Numerical analysis Phonons Photoconductivity Kramers-Kronig analysis Multioscillator analyses Optical conductivity Orthorhombic structure Reflectivity decays Semimetallic behavior Solid state synthesis Strontium rutenate Strontium compounds
description	We discuss the infrared reflectivity of strontium rutenate, SrRuO3, measured from 40 cm-1 to 10000 cm-1. The relative high reflectance at low frequencies and the semimetallic behavior at values between 300 cm-1 and 1900 cm-1 found in this compound is in accordance with a system with relatively free carriers. Two weak absorptions at about 450 cm-1 and 800 cm-1 are assigned to the interaction between electrons and longitudinal phonons . The reflectivity decays rather sharply up to about 3900 cm-1 and then decreases asymptotically at higher energies. From Kramers-Kronig and multioscillator analyses we obtain the effective carrier number N* = 7.07 1018 cm-3, the effective mobility μ* = 142.6 cm2V-1sec-1 and the optical conductivity σo = 175.6 Ω-1cm-1.
format	JOUR
author	De La Cruz, F.P. Massa, N.E. Cuffini, S.L. Carbonio, R.E.
author_facet	De La Cruz, F.P. Massa, N.E. Cuffini, S.L. Carbonio, R.E.
author_sort	De La Cruz, F.P.
title	Infrared reflectivity of SrRuO3
title_short	Infrared reflectivity of SrRuO3
title_full	Infrared reflectivity of SrRuO3
title_fullStr	Infrared reflectivity of SrRuO3
title_full_unstemmed	Infrared reflectivity of SrRuO3
title_sort	infrared reflectivity of srruo3
url	http://hdl.handle.net/20.500.12110/paper_00150193_v185_n1-4_p277_DeLaCruz
work_keys_str_mv	AT delacruzfp infraredreflectivityofsrruo3 AT massane infraredreflectivityofsrruo3 AT cuffinisl infraredreflectivityofsrruo3 AT carboniore infraredreflectivityofsrruo3
_version_	1807318800110977024

Infrared reflectivity of SrRuO3

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