Electrical conductivity and Knight shift of liquid alkali metals

In the present work we have considered two alkali metals - sodium and potassium - at their molten stage near the melting point. For the purpose of this theoretical investigation we have used Harrison’s first principle (HFP) pseudopotential technique which is basically an orthogonalised plane wave m...

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Main Authors: SK Chakrabarti, IS Jha, RN Yadav, BP Singh
Format: Article
Language:English
Published: Department of Physics, Mahendra Morang Adarsh Multiple Campus, Tribhuvan University 2012-12-01
Series:Bibechana
Subjects:
Online Access:https://www.nepjol.info/index.php/BIBECHANA/article/view/7181
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author SK Chakrabarti
IS Jha
RN Yadav
BP Singh
author_facet SK Chakrabarti
IS Jha
RN Yadav
BP Singh
author_sort SK Chakrabarti
collection DOAJ
description In the present work we have considered two alkali metals - sodium and potassium - at their molten stage near the melting point. For the purpose of this theoretical investigation we have used Harrison’s first principle (HFP) pseudopotential technique which is basically an orthogonalised plane wave method. The electrical resistivity has been computed through Ziman’s formula. Then the electrical conductivity of the present metals is found out just by taking the reciprocal of the values so obtained. Our computed results have been compared with the experimental data and a good agreement is obtained. A study of the existing literature reveals that the work with the magnetic property like Knight shift of metals is scarce. This has encouraged us to apply the said HFP technique to study the Knight shift of the present alkali metals. For this purpose we have used Knight’s formula. Our computed values of Knight shift are in reasonable agreement for the metals under investigation. DOI: http://dx.doi.org/10.3126/bibechana.v9i0.7181 BIBECHANA 9 (2013) 92-95
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spelling doaj.art-3424e6730cda4a2ea5860972c99a13472024-05-16T13:06:53ZengDepartment of Physics, Mahendra Morang Adarsh Multiple Campus, Tribhuvan UniversityBibechana2091-07622382-53402012-12-01910.3126/bibechana.v9i0.7181Electrical conductivity and Knight shift of liquid alkali metalsSK Chakrabarti0IS Jha1RN Yadav2BP Singh3Department of Physics, Tribhuvan University, M. M. A. M. Campus, BiratnagarDepartment of Physics, Tribhuvan University, M. M. A. M. Campus, BiratnagarDepartment of Mathematics, Tribhuvan University, M. M. A. M. Campus, BiratnagarDepartment of Physics, Tilka Manjhi Bhagalpur University, Bhagalpur, Bihar In the present work we have considered two alkali metals - sodium and potassium - at their molten stage near the melting point. For the purpose of this theoretical investigation we have used Harrison’s first principle (HFP) pseudopotential technique which is basically an orthogonalised plane wave method. The electrical resistivity has been computed through Ziman’s formula. Then the electrical conductivity of the present metals is found out just by taking the reciprocal of the values so obtained. Our computed results have been compared with the experimental data and a good agreement is obtained. A study of the existing literature reveals that the work with the magnetic property like Knight shift of metals is scarce. This has encouraged us to apply the said HFP technique to study the Knight shift of the present alkali metals. For this purpose we have used Knight’s formula. Our computed values of Knight shift are in reasonable agreement for the metals under investigation. DOI: http://dx.doi.org/10.3126/bibechana.v9i0.7181 BIBECHANA 9 (2013) 92-95 https://www.nepjol.info/index.php/BIBECHANA/article/view/7181Electrical conductivityKnight shiftPseudopotentialAlkali metals
spellingShingle SK Chakrabarti
IS Jha
RN Yadav
BP Singh
Electrical conductivity and Knight shift of liquid alkali metals
Bibechana
Electrical conductivity
Knight shift
Pseudopotential
Alkali metals
title Electrical conductivity and Knight shift of liquid alkali metals
title_full Electrical conductivity and Knight shift of liquid alkali metals
title_fullStr Electrical conductivity and Knight shift of liquid alkali metals
title_full_unstemmed Electrical conductivity and Knight shift of liquid alkali metals
title_short Electrical conductivity and Knight shift of liquid alkali metals
title_sort electrical conductivity and knight shift of liquid alkali metals
topic Electrical conductivity
Knight shift
Pseudopotential
Alkali metals
url https://www.nepjol.info/index.php/BIBECHANA/article/view/7181
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AT isjha electricalconductivityandknightshiftofliquidalkalimetals
AT rnyadav electricalconductivityandknightshiftofliquidalkalimetals
AT bpsingh electricalconductivityandknightshiftofliquidalkalimetals