Hopping conductivity and spectrum of localized carriers in β-FeSi:Mn

Resistivity measurements of Mn-doped p-type β-FeSi2 single crystals are presented and analyzed with the different hopping conductivity models. Both the Mott and the Shklovskii- Efros regimes of the variable-range hopping (VRH) conductivity are observed as well as the universal scaling behavior of...

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Autores principales:	Aruşanov, Ernest, Lisunov, Constantin, Vinzellberg, H, Behr, G, Schumann, J, Schmidt, Oliver
Formato:	article
Lenguaje:	EN
Publicado:	D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2009
Materias:	Physics QC1-999 Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/1c938407380949638b9953a02c5186ec
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spelling	oai:doaj.org-article:1c938407380949638b9953a02c5186ec2021-11-21T12:05:48ZHopping conductivity and spectrum of localized carriers in β-FeSi:Mn2537-63651810-648Xhttps://doaj.org/article/1c938407380949638b9953a02c5186ec2009-02-01T00:00:00Zhttps://mjps.nanotech.md/archive/2009/article/4017https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365Resistivity measurements of Mn-doped p-type β-FeSi2 single crystals are presented and analyzed with the different hopping conductivity models. Both the Mott and the Shklovskii- Efros regimes of the variable-range hopping (VRH) conductivity are observed as well as the universal scaling behavior of the resistivity. The characteristic and transition temperatures and widths of the impurity band and of the Coulomb gap, Δ, in the density of states (DOS) are obtained, indicating existence of a rigid gap, δ, in the spectrum of DOS, in addition to Δ, which points out to the polaronic nature of the charge carriers in the investigated compound. Aruşanov, ErnestLisunov, ConstantinVinzellberg, HBehr, GSchumann, JSchmidt, OliverD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 8, Iss 1, Pp 49-53 (2009)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronics TK7800-8360
spellingShingle	Physics QC1-999 Electronics TK7800-8360 Aruşanov, Ernest Lisunov, Constantin Vinzellberg, H Behr, G Schumann, J Schmidt, Oliver Hopping conductivity and spectrum of localized carriers in β-FeSi:Mn
description	Resistivity measurements of Mn-doped p-type β-FeSi2 single crystals are presented and analyzed with the different hopping conductivity models. Both the Mott and the Shklovskii- Efros regimes of the variable-range hopping (VRH) conductivity are observed as well as the universal scaling behavior of the resistivity. The characteristic and transition temperatures and widths of the impurity band and of the Coulomb gap, Δ, in the density of states (DOS) are obtained, indicating existence of a rigid gap, δ, in the spectrum of DOS, in addition to Δ, which points out to the polaronic nature of the charge carriers in the investigated compound.
format	article
author	Aruşanov, Ernest Lisunov, Constantin Vinzellberg, H Behr, G Schumann, J Schmidt, Oliver
author_facet	Aruşanov, Ernest Lisunov, Constantin Vinzellberg, H Behr, G Schumann, J Schmidt, Oliver
author_sort	Aruşanov, Ernest
title	Hopping conductivity and spectrum of localized carriers in β-FeSi:Mn
title_short	Hopping conductivity and spectrum of localized carriers in β-FeSi:Mn
title_full	Hopping conductivity and spectrum of localized carriers in β-FeSi:Mn
title_fullStr	Hopping conductivity and spectrum of localized carriers in β-FeSi:Mn
title_full_unstemmed	Hopping conductivity and spectrum of localized carriers in β-FeSi:Mn
title_sort	hopping conductivity and spectrum of localized carriers in β-fesi:mn
publisher	D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate	2009
url	https://doaj.org/article/1c938407380949638b9953a02c5186ec
work_keys_str_mv	AT arusanovernest hoppingconductivityandspectrumoflocalizedcarriersinbfesimn AT lisunovconstantin hoppingconductivityandspectrumoflocalizedcarriersinbfesimn AT vinzellbergh hoppingconductivityandspectrumoflocalizedcarriersinbfesimn AT behrg hoppingconductivityandspectrumoflocalizedcarriersinbfesimn AT schumannj hoppingconductivityandspectrumoflocalizedcarriersinbfesimn AT schmidtoliver hoppingconductivityandspectrumoflocalizedcarriersinbfesimn
_version_	1718419230699814912

Hopping conductivity and spectrum of localized carriers in β-FeSi:Mn

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