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Influence of Anomalous Changes in the Crystal Structure on the Transport Properties of YbNi(1−x)Cu(x)Al Series of Alloys
Results of the transport properties of the YbNi(1−x)Cu(x)Al (x = 0, 0.2, 0.5, 0.8 and 1.0) series of alloys are reported. The previous analysis of X-ray diffraction patterns indicates that all compounds crystallize in the hexagonal ZrNiAl structure with a linear behavior of the unit cell volume as a...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8911309/ https://www.ncbi.nlm.nih.gov/pubmed/35268919 http://dx.doi.org/10.3390/ma15051688 |
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author | Pupo, Daniel Rojas Gandra, Flávio Guimarães Barquín, Luis Fernández |
author_facet | Pupo, Daniel Rojas Gandra, Flávio Guimarães Barquín, Luis Fernández |
author_sort | Pupo, Daniel Rojas |
collection | PubMed |
description | Results of the transport properties of the YbNi(1−x)Cu(x)Al (x = 0, 0.2, 0.5, 0.8 and 1.0) series of alloys are reported. The previous analysis of X-ray diffraction patterns indicates that all compounds crystallize in the hexagonal ZrNiAl structure with a linear behavior of the unit cell volume as a function of the Cu concentration (x). This is not found in the unit cell parameters, showing a discontinuity between x = 0.5 and 0.8. Such discontinuities affect the behavior of the electrical resistivity, in which the position of the minimum temperature changes from 95 K to 175 K, and a rise in the low temperature slope in the magnetic contribution (with -lnT dependence) from 21 μΩcm to 212 μΩcm is observed. In addition, the electronic coefficient of the specific heat increases almost twofold from 125 mJ/mol·K(2) (x = 0.5) to 246 mJ/mol·K(2) (x = 0.8). These changes are attributed to the variation of the distance between Yb and transition metals (Ni and Cu) along the series and the different electronic properties of the transition metals (Ni and Cu). |
format | Online Article Text |
id | pubmed-8911309 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-89113092022-03-11 Influence of Anomalous Changes in the Crystal Structure on the Transport Properties of YbNi(1−x)Cu(x)Al Series of Alloys Pupo, Daniel Rojas Gandra, Flávio Guimarães Barquín, Luis Fernández Materials (Basel) Article Results of the transport properties of the YbNi(1−x)Cu(x)Al (x = 0, 0.2, 0.5, 0.8 and 1.0) series of alloys are reported. The previous analysis of X-ray diffraction patterns indicates that all compounds crystallize in the hexagonal ZrNiAl structure with a linear behavior of the unit cell volume as a function of the Cu concentration (x). This is not found in the unit cell parameters, showing a discontinuity between x = 0.5 and 0.8. Such discontinuities affect the behavior of the electrical resistivity, in which the position of the minimum temperature changes from 95 K to 175 K, and a rise in the low temperature slope in the magnetic contribution (with -lnT dependence) from 21 μΩcm to 212 μΩcm is observed. In addition, the electronic coefficient of the specific heat increases almost twofold from 125 mJ/mol·K(2) (x = 0.5) to 246 mJ/mol·K(2) (x = 0.8). These changes are attributed to the variation of the distance between Yb and transition metals (Ni and Cu) along the series and the different electronic properties of the transition metals (Ni and Cu). MDPI 2022-02-24 /pmc/articles/PMC8911309/ /pubmed/35268919 http://dx.doi.org/10.3390/ma15051688 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Pupo, Daniel Rojas Gandra, Flávio Guimarães Barquín, Luis Fernández Influence of Anomalous Changes in the Crystal Structure on the Transport Properties of YbNi(1−x)Cu(x)Al Series of Alloys |
title | Influence of Anomalous Changes in the Crystal Structure on the Transport Properties of YbNi(1−x)Cu(x)Al Series of Alloys |
title_full | Influence of Anomalous Changes in the Crystal Structure on the Transport Properties of YbNi(1−x)Cu(x)Al Series of Alloys |
title_fullStr | Influence of Anomalous Changes in the Crystal Structure on the Transport Properties of YbNi(1−x)Cu(x)Al Series of Alloys |
title_full_unstemmed | Influence of Anomalous Changes in the Crystal Structure on the Transport Properties of YbNi(1−x)Cu(x)Al Series of Alloys |
title_short | Influence of Anomalous Changes in the Crystal Structure on the Transport Properties of YbNi(1−x)Cu(x)Al Series of Alloys |
title_sort | influence of anomalous changes in the crystal structure on the transport properties of ybni(1−x)cu(x)al series of alloys |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8911309/ https://www.ncbi.nlm.nih.gov/pubmed/35268919 http://dx.doi.org/10.3390/ma15051688 |
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