Polaron Trapping and Migration in Iron-Doped Lithium Niobate

Polaron Trapping and Migration in Iron-Doped Lithium Niobate

Photoinduced charge transport in lithium niobate for standard illumination, composition and temperature conditions occurs by means of small polaron hopping either on regular or defective lattice sites. Starting from Marcus-Holstein’s theory for polaron hopping frequency we draw a quantitative pictur...

Full description

Bibliographic Details
Main Authors: Laura Vittadello, Laurent Guilbert, Stanislav Fedorenko, Marco Bazzan
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Crystals
Subjects:
lithium niobate
polarons
photorefractivity
Marcus-Holstein’s theory
Monte Carlo simulations
Online Access:https://www.mdpi.com/2073-4352/11/3/302
id doaj-35d7342221094a2d820e616f1ffcaa25
record_format Article
spelling doaj-35d7342221094a2d820e616f1ffcaa252021-03-18T00:04:13ZengMDPI AGCrystals2073-43522021-03-011130230210.3390/cryst11030302Polaron Trapping and Migration in Iron-Doped Lithium NiobateLaura Vittadello0Laurent Guilbert1Stanislav Fedorenko2Marco Bazzan3School of Physics, Osnabrueck University, Barbarastrasse 7, 49076 Osnabrueck, GermanyLaboratoire Matériaux Optiques, Photonique et Systèmes, Université de Lorraine et CentraleSupéléc, 2 rue E. Belin, F-57070 Metz, FranceVoevodsky Institute of Chemical Kinetics and Combustion, Russian Academy of Sciences, 630090 Novosibirsk, RussiaDipartimento di Fisica e Astronomia, Università di Padova, Via Marzolo 8, 35131 Padova, ItalyPhotoinduced charge transport in lithium niobate for standard illumination, composition and temperature conditions occurs by means of small polaron hopping either on regular or defective lattice sites. Starting from Marcus-Holstein’s theory for polaron hopping frequency we draw a quantitative picture illustrating two underlying microscopic mechanisms besides experimental observations, namely direct trapping and migration-accelerated polaron trapping transport. Our observations will be referred to the typical outcomes of transient light induced absorption measurements, where the kinetics of a polaron population generated by a laser pulse then decaying towards deep trap sites is measured. Our results help to rationalize the observations beyond simple phenomenological models and may serve as a guide to design the material according to the desired specifications.https://www.mdpi.com/2073-4352/11/3/302lithium niobatepolaronsphotorefractivityMarcus-Holstein’s theoryMonte Carlo simulations
collection DOAJ
language English
format Article
sources DOAJ
author Laura Vittadello
Laurent Guilbert
Stanislav Fedorenko
Marco Bazzan
spellingShingle Laura Vittadello
Laurent Guilbert
Stanislav Fedorenko
Marco Bazzan
Polaron Trapping and Migration in Iron-Doped Lithium Niobate
Crystals
lithium niobate
polarons
photorefractivity
Marcus-Holstein’s theory
Monte Carlo simulations
author_facet Laura Vittadello
Laurent Guilbert
Stanislav Fedorenko
Marco Bazzan
author_sort Laura Vittadello
title Polaron Trapping and Migration in Iron-Doped Lithium Niobate
title_short Polaron Trapping and Migration in Iron-Doped Lithium Niobate
title_full Polaron Trapping and Migration in Iron-Doped Lithium Niobate
title_fullStr Polaron Trapping and Migration in Iron-Doped Lithium Niobate
title_full_unstemmed Polaron Trapping and Migration in Iron-Doped Lithium Niobate
title_sort polaron trapping and migration in iron-doped lithium niobate
publisher MDPI AG
series Crystals
issn 2073-4352
publishDate 2021-03-01
description Photoinduced charge transport in lithium niobate for standard illumination, composition and temperature conditions occurs by means of small polaron hopping either on regular or defective lattice sites. Starting from Marcus-Holstein’s theory for polaron hopping frequency we draw a quantitative picture illustrating two underlying microscopic mechanisms besides experimental observations, namely direct trapping and migration-accelerated polaron trapping transport. Our observations will be referred to the typical outcomes of transient light induced absorption measurements, where the kinetics of a polaron population generated by a laser pulse then decaying towards deep trap sites is measured. Our results help to rationalize the observations beyond simple phenomenological models and may serve as a guide to design the material according to the desired specifications.
topic lithium niobate
polarons
photorefractivity
Marcus-Holstein’s theory
Monte Carlo simulations
url https://www.mdpi.com/2073-4352/11/3/302
work_keys_str_mv AT lauravittadello polarontrappingandmigrationinirondopedlithiumniobate
AT laurentguilbert polarontrappingandmigrationinirondopedlithiumniobate
AT stanislavfedorenko polarontrappingandmigrationinirondopedlithiumniobate
AT marcobazzan polarontrappingandmigrationinirondopedlithiumniobate
_version_ 1724217931898814464

Similar Items