Cooper Pairs Distribution function for bcc Niobium under pressure from first-principles

Abstract In this paper, we report Cooper Pairs Distribution function $${D}_{cp}(\omega ,{T}_{c})$$ D cp ( ω , T c ) for bcc Niobium under pressure. This function reveals information about the superconductor state through the determination of the spectral regions for Cooper-pairs formation. $${D}_{cp...

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Autores principales:	G. I. González-Pedreros, J. A. Camargo-Martínez, F. Mesa
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/74ddddcfda99469cb1d2af8c8518fee2
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spelling	oai:doaj.org-article:74ddddcfda99469cb1d2af8c8518fee22021-12-02T14:21:16ZCooper Pairs Distribution function for bcc Niobium under pressure from first-principles10.1038/s41598-021-87028-x2045-2322https://doaj.org/article/74ddddcfda99469cb1d2af8c8518fee22021-04-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-87028-xhttps://doaj.org/toc/2045-2322Abstract In this paper, we report Cooper Pairs Distribution function $${D}_{cp}(\omega ,{T}_{c})$$ D cp ( ω , T c ) for bcc Niobium under pressure. This function reveals information about the superconductor state through the determination of the spectral regions for Cooper-pairs formation. $${D}_{cp}(\omega ,{T}_{c})$$ D cp ( ω , T c ) is built from the well-established Eliashberg spectral function and phonon density of states, calculated by first-principles. $${D}_{cp}(\omega ,{T}_{c})$$ D cp ( ω , T c ) for Nb suggests that the low-frequency vibration region $$\left(\omega <6 \,{\text{meV}}\right)$$ ω < 6 meV is where Cooper-pairs are possible. From $${D}_{cp}(\omega ,{T}_{c})$$ D cp ( ω , T c ) , it is possible to obtain the $${N}_{cp}$$ N cp parameter, which is proportional to the total number of Cooper-Pairs formed at a temperature $${T}_{c}$$ T c . The $${N}_{cp}$$ N cp parameter allows an approach to the understanding of the Nb $${T}_{c}$$ T c anomalies, measured around 5 and 50 GPa.G. I. González-PedrerosJ. A. Camargo-MartínezF. MesaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-6 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q G. I. González-Pedreros J. A. Camargo-Martínez F. Mesa Cooper Pairs Distribution function for bcc Niobium under pressure from first-principles
description	Abstract In this paper, we report Cooper Pairs Distribution function $${D}_{cp}(\omega ,{T}_{c})$$ D cp ( ω , T c ) for bcc Niobium under pressure. This function reveals information about the superconductor state through the determination of the spectral regions for Cooper-pairs formation. $${D}_{cp}(\omega ,{T}_{c})$$ D cp ( ω , T c ) is built from the well-established Eliashberg spectral function and phonon density of states, calculated by first-principles. $${D}_{cp}(\omega ,{T}_{c})$$ D cp ( ω , T c ) for Nb suggests that the low-frequency vibration region $$\left(\omega <6 \,{\text{meV}}\right)$$ ω < 6 meV is where Cooper-pairs are possible. From $${D}_{cp}(\omega ,{T}_{c})$$ D cp ( ω , T c ) , it is possible to obtain the $${N}_{cp}$$ N cp parameter, which is proportional to the total number of Cooper-Pairs formed at a temperature $${T}_{c}$$ T c . The $${N}_{cp}$$ N cp parameter allows an approach to the understanding of the Nb $${T}_{c}$$ T c anomalies, measured around 5 and 50 GPa.
format	article
author	G. I. González-Pedreros J. A. Camargo-Martínez F. Mesa
author_facet	G. I. González-Pedreros J. A. Camargo-Martínez F. Mesa
author_sort	G. I. González-Pedreros
title	Cooper Pairs Distribution function for bcc Niobium under pressure from first-principles
title_short	Cooper Pairs Distribution function for bcc Niobium under pressure from first-principles
title_full	Cooper Pairs Distribution function for bcc Niobium under pressure from first-principles
title_fullStr	Cooper Pairs Distribution function for bcc Niobium under pressure from first-principles
title_full_unstemmed	Cooper Pairs Distribution function for bcc Niobium under pressure from first-principles
title_sort	cooper pairs distribution function for bcc niobium under pressure from first-principles
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/74ddddcfda99469cb1d2af8c8518fee2
work_keys_str_mv	AT gigonzalezpedreros cooperpairsdistributionfunctionforbccniobiumunderpressurefromfirstprinciples AT jacamargomartinez cooperpairsdistributionfunctionforbccniobiumunderpressurefromfirstprinciples AT fmesa cooperpairsdistributionfunctionforbccniobiumunderpressurefromfirstprinciples
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Cooper Pairs Distribution function for bcc Niobium under pressure from first-principles

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