Electronic specific heats for amorphous and crystallized alloys

The low temperature specific heats of (Fe(0.5)Co(0.5))(72)B(20)Si(4)Nb(4) amorphous and crystallized alloys are measured and analyzed from 1.4 to 110 K. Specific heats can be well fitted by electronic and phonon contribution terms. It is found that the electronic contribution term in specific heat f...

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Autores principales: Hou, Long, Mo, Jinyong, Liu, Qingling, Liu, Haishun, Yang, Weiming, Shen, Baolong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer International Publishing 2016
Materias:
Research
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4899383/
https://www.ncbi.nlm.nih.gov/pubmed/27350929
http://dx.doi.org/10.1186/s40064-016-2335-x
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author Hou, Long
Mo, Jinyong
Liu, Qingling
Liu, Haishun
Yang, Weiming
Shen, Baolong
author_facet Hou, Long
Mo, Jinyong
Liu, Qingling
Liu, Haishun
Yang, Weiming
Shen, Baolong
author_sort Hou, Long
collection PubMed
description The low temperature specific heats of (Fe(0.5)Co(0.5))(72)B(20)Si(4)Nb(4) amorphous and crystallized alloys are measured and analyzed from 1.4 to 110 K. Specific heats can be well fitted by electronic and phonon contribution terms. It is found that the electronic contribution term in specific heat for amorphous alloy is larger than that for crystallized one, and this phenomenon has been interpreted in detail. The research shows that the electronic density of states at the Fermi level and the localized loose “rattler” atoms in oversized cage structure may make contributions to the enhancement of electronic specific heat coefficient γ, and result in a larger electronic contribution term. This study is significant for further understanding the structure–property relationship for amorphous alloys at low temperature.
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spelling pubmed-48993832016-06-27 Electronic specific heats for amorphous and crystallized alloys Hou, Long Mo, Jinyong Liu, Qingling Liu, Haishun Yang, Weiming Shen, Baolong Springerplus Research The low temperature specific heats of (Fe(0.5)Co(0.5))(72)B(20)Si(4)Nb(4) amorphous and crystallized alloys are measured and analyzed from 1.4 to 110 K. Specific heats can be well fitted by electronic and phonon contribution terms. It is found that the electronic contribution term in specific heat for amorphous alloy is larger than that for crystallized one, and this phenomenon has been interpreted in detail. The research shows that the electronic density of states at the Fermi level and the localized loose “rattler” atoms in oversized cage structure may make contributions to the enhancement of electronic specific heat coefficient γ, and result in a larger electronic contribution term. This study is significant for further understanding the structure–property relationship for amorphous alloys at low temperature. Springer International Publishing 2016-05-23 /pmc/articles/PMC4899383/ /pubmed/27350929 http://dx.doi.org/10.1186/s40064-016-2335-x Text en © The Author(s). 2016 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
spellingShingle Research
Hou, Long
Mo, Jinyong
Liu, Qingling
Liu, Haishun
Yang, Weiming
Shen, Baolong
Electronic specific heats for amorphous and crystallized alloys
title Electronic specific heats for amorphous and crystallized alloys
title_full Electronic specific heats for amorphous and crystallized alloys
title_fullStr Electronic specific heats for amorphous and crystallized alloys
title_full_unstemmed Electronic specific heats for amorphous and crystallized alloys
title_short Electronic specific heats for amorphous and crystallized alloys
title_sort electronic specific heats for amorphous and crystallized alloys
topic Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4899383/
https://www.ncbi.nlm.nih.gov/pubmed/27350929
http://dx.doi.org/10.1186/s40064-016-2335-x
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AT yangweiming electronicspecificheatsforamorphousandcrystallizedalloys
AT shenbaolong electronicspecificheatsforamorphousandcrystallizedalloys

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