Magnetic frustration induced large magnetocaloric effect in the absence of long range magnetic order

We have synthesized a new intermetallic compound Ho(2)Ni(0.95)Si(2.95) in a single phase with a defect crystal structure. The magnetic ground state of this material found to be highly frustrated without any long range order or glassy feature as investigated through magnetic, heat capacity and neutro...

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Autores principales: Pakhira, Santanu, Mazumdar, Chandan, Ranganathan, R., Avdeev, Maxim
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5544711/
https://www.ncbi.nlm.nih.gov/pubmed/28779145
http://dx.doi.org/10.1038/s41598-017-07459-3
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author Pakhira, Santanu
Mazumdar, Chandan
Ranganathan, R.
Avdeev, Maxim
author_facet Pakhira, Santanu
Mazumdar, Chandan
Ranganathan, R.
Avdeev, Maxim
author_sort Pakhira, Santanu
collection PubMed
description We have synthesized a new intermetallic compound Ho(2)Ni(0.95)Si(2.95) in a single phase with a defect crystal structure. The magnetic ground state of this material found to be highly frustrated without any long range order or glassy feature as investigated through magnetic, heat capacity and neutron diffraction measurements. The interest in this material stems from the fact that despite the absence of true long range order, large magnetocaloric effect (isothermal magnetic entropy change, −ΔS(M) ~ 28.65 J/Kg K (~205.78 mJ/cm(3) K), relative cooling power, RCP ~ 696 J/Kg (~5 J/cm(3)) and adiabatic temperature change, ΔT(ad) ~ 9.32 K for a field change of 70 kOe) has been observed which is rather hard to find in nature.
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spelling pubmed-55447112017-08-07 Magnetic frustration induced large magnetocaloric effect in the absence of long range magnetic order Pakhira, Santanu Mazumdar, Chandan Ranganathan, R. Avdeev, Maxim Sci Rep Article We have synthesized a new intermetallic compound Ho(2)Ni(0.95)Si(2.95) in a single phase with a defect crystal structure. The magnetic ground state of this material found to be highly frustrated without any long range order or glassy feature as investigated through magnetic, heat capacity and neutron diffraction measurements. The interest in this material stems from the fact that despite the absence of true long range order, large magnetocaloric effect (isothermal magnetic entropy change, −ΔS(M) ~ 28.65 J/Kg K (~205.78 mJ/cm(3) K), relative cooling power, RCP ~ 696 J/Kg (~5 J/cm(3)) and adiabatic temperature change, ΔT(ad) ~ 9.32 K for a field change of 70 kOe) has been observed which is rather hard to find in nature. Nature Publishing Group UK 2017-08-04 /pmc/articles/PMC5544711/ /pubmed/28779145 http://dx.doi.org/10.1038/s41598-017-07459-3 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Pakhira, Santanu
Mazumdar, Chandan
Ranganathan, R.
Avdeev, Maxim
Magnetic frustration induced large magnetocaloric effect in the absence of long range magnetic order
title Magnetic frustration induced large magnetocaloric effect in the absence of long range magnetic order
title_full Magnetic frustration induced large magnetocaloric effect in the absence of long range magnetic order
title_fullStr Magnetic frustration induced large magnetocaloric effect in the absence of long range magnetic order
title_full_unstemmed Magnetic frustration induced large magnetocaloric effect in the absence of long range magnetic order
title_short Magnetic frustration induced large magnetocaloric effect in the absence of long range magnetic order
title_sort magnetic frustration induced large magnetocaloric effect in the absence of long range magnetic order
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5544711/
https://www.ncbi.nlm.nih.gov/pubmed/28779145
http://dx.doi.org/10.1038/s41598-017-07459-3
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AT avdeevmaxim magneticfrustrationinducedlargemagnetocaloriceffectintheabsenceoflongrangemagneticorder

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