Superconducting properties of single crystal wires of lead telluride doped with thallium active pore materials based on sludges of Cr-Ni alloy electrochemical machining

Results of the measurements of temperature dependences of resistivity of thin single crystal wires of PbTe in the temperature region 0.4 ÷ 4.2 K are presented. Thallium average concentration was 0.001 ÷ 0.02 at.%. Single crystal wires (with diameters d = 5 ÷ 100 μm) were obtained by filling of...

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Autor principal:	Zasaviţchi, Efim
Formato:	article
Lenguaje:	EN
Publicado:	D.Ghitu Institute of Electronic Engineering and Nanotechnologies 2006
Materias:	Physics QC1-999 Electronics TK7800-8360
Acceso en línea:	https://doaj.org/article/658542ea13f246c6b77e475124e0ce6d
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spelling	oai:doaj.org-article:658542ea13f246c6b77e475124e0ce6d2021-11-21T12:09:47ZSuperconducting properties of single crystal wires of lead telluride doped with thallium active pore materials based on sludges of Cr-Ni alloy electrochemical machining 2537-63651810-648Xhttps://doaj.org/article/658542ea13f246c6b77e475124e0ce6d2006-04-01T00:00:00Zhttps://mjps.nanotech.md/archive/2006/article/3492https://doaj.org/toc/1810-648Xhttps://doaj.org/toc/2537-6365Results of the measurements of temperature dependences of resistivity of thin single crystal wires of PbTe in the temperature region 0.4 ÷ 4.2 K are presented. Thallium average concentration was 0.001 ÷ 0.02 at.%. Single crystal wires (with diameters d = 5 ÷ 100 μm) were obtained by filling of quartz capillary with the solution melt with the following directed crystallization of this material. The structural perfection of investigated samples was tested by X-ray diffraction and LAMMA analysis. It is revealed, that at low temperatures in single crystal wires of PbTe transition in a superconducting state is observed. The temperature of transition correlates with impurity concentration (for single crystal wires of PbTe at thallium concentration 2% Tc=2,1K). Mechanisms leading to superconducting transition and features of temperature dependence of resistance in the field of previous transition are discussed. The interpretation of the obtained results is given based on model of an impurity with skipped valence. Zasaviţchi, EfimD.Ghitu Institute of Electronic Engineering and NanotechnologiesarticlePhysicsQC1-999ElectronicsTK7800-8360ENMoldavian Journal of the Physical Sciences, Vol 5, Iss 2, Pp 221-224 (2006)
institution	DOAJ
collection	DOAJ
language	EN
topic	Physics QC1-999 Electronics TK7800-8360
spellingShingle	Physics QC1-999 Electronics TK7800-8360 Zasaviţchi, Efim Superconducting properties of single crystal wires of lead telluride doped with thallium active pore materials based on sludges of Cr-Ni alloy electrochemical machining
description	Results of the measurements of temperature dependences of resistivity of thin single crystal wires of PbTe in the temperature region 0.4 ÷ 4.2 K are presented. Thallium average concentration was 0.001 ÷ 0.02 at.%. Single crystal wires (with diameters d = 5 ÷ 100 μm) were obtained by filling of quartz capillary with the solution melt with the following directed crystallization of this material. The structural perfection of investigated samples was tested by X-ray diffraction and LAMMA analysis. It is revealed, that at low temperatures in single crystal wires of PbTe transition in a superconducting state is observed. The temperature of transition correlates with impurity concentration (for single crystal wires of PbTe at thallium concentration 2% Tc=2,1K). Mechanisms leading to superconducting transition and features of temperature dependence of resistance in the field of previous transition are discussed. The interpretation of the obtained results is given based on model of an impurity with skipped valence.
format	article
author	Zasaviţchi, Efim
author_facet	Zasaviţchi, Efim
author_sort	Zasaviţchi, Efim
title	Superconducting properties of single crystal wires of lead telluride doped with thallium active pore materials based on sludges of Cr-Ni alloy electrochemical machining
title_short	Superconducting properties of single crystal wires of lead telluride doped with thallium active pore materials based on sludges of Cr-Ni alloy electrochemical machining
title_full	Superconducting properties of single crystal wires of lead telluride doped with thallium active pore materials based on sludges of Cr-Ni alloy electrochemical machining
title_fullStr	Superconducting properties of single crystal wires of lead telluride doped with thallium active pore materials based on sludges of Cr-Ni alloy electrochemical machining
title_full_unstemmed	Superconducting properties of single crystal wires of lead telluride doped with thallium active pore materials based on sludges of Cr-Ni alloy electrochemical machining
title_sort	superconducting properties of single crystal wires of lead telluride doped with thallium active pore materials based on sludges of cr-ni alloy electrochemical machining
publisher	D.Ghitu Institute of Electronic Engineering and Nanotechnologies
publishDate	2006
url	https://doaj.org/article/658542ea13f246c6b77e475124e0ce6d
work_keys_str_mv	AT zasavitchiefim superconductingpropertiesofsinglecrystalwiresofleadtelluridedopedwiththalliumactiveporematerialsbasedonsludgesofcrnialloyelectrochemicalmachining
_version_	1718419190208004096

Superconducting properties of single crystal wires of lead telluride doped with thallium active pore materials based on sludges of Cr-Ni alloy electrochemical machining

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