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Colossal piezomagnetic response in magnetically pressed Zr(+4) substituted cobalt ferrites
A remarkable 111% increase in magnetostriction (λ) and 435% increase in strain sensitivity (dλ/dH) (compared to normally compacted (NC) unsubstituted CoFe(2)O(4) (CFO)) of Zr(+4) doped CFO sample, Co(1.2)Zr(0.2)Fe(1.6)O(4), prepared by magnetic field assisted compaction, have been reported in this s...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5554159/ https://www.ncbi.nlm.nih.gov/pubmed/28801628 http://dx.doi.org/10.1038/s41598-017-08160-1 |
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author | Reddy, Monaji Vinitha Lisfi, Abdellah Pokharel, Sabin Das, Dibakar |
author_facet | Reddy, Monaji Vinitha Lisfi, Abdellah Pokharel, Sabin Das, Dibakar |
author_sort | Reddy, Monaji Vinitha |
collection | PubMed |
description | A remarkable 111% increase in magnetostriction (λ) and 435% increase in strain sensitivity (dλ/dH) (compared to normally compacted (NC) unsubstituted CoFe(2)O(4) (CFO)) of Zr(+4) doped CFO sample, Co(1.2)Zr(0.2)Fe(1.6)O(4), prepared by magnetic field assisted compaction, have been reported in this study. Magnetic field assisted compaction (MC) has been employed to process Zr-doped cobalt ferrites, Co(1+x)Zr(x)Fe(2−2x)O(4) (0 ≤ × ≤ 0.4), to further improve the magnetoelastic properties. Saturation magnetization (M (S)) and coercivity (H (C)) increase from ~426 kA/m and ~4.4 kA/m respectively, for x = 0, to ~552 kA/m and ~7.11 kA/m respectively for x = 0.2. Dramatic increase in λ was observed for MC samples (~ −360 ppm and ~−380 ppm for x = 0 and x = 0.2 respectively) compared to the NC samples (~−181 ppm and ~−185 ppm for x = 0 and x = 0.2 respectively). A remarkable quadruple increase in dλ/dH was observed in Zr-doped (x = 0.2) cobalt-ferrite (~4.3 × 10(−9) A(−1)m) compared to that of unsubstituted cobalt-ferrite (~1.24 × 10(−9) A(−1)m), while a fivefold increase in dλ/dH was observed for magnetically compacted (MC) Zr doped cobalt ferrite (x = 0.2) (~4.3 × 10(−9) A(−1)m) compared to normal compacted (NC) unsubstituted cobalt ferrite (~0.8 × 10(−9) A(−1)m). |
format | Online Article Text |
id | pubmed-5554159 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-55541592017-08-15 Colossal piezomagnetic response in magnetically pressed Zr(+4) substituted cobalt ferrites Reddy, Monaji Vinitha Lisfi, Abdellah Pokharel, Sabin Das, Dibakar Sci Rep Article A remarkable 111% increase in magnetostriction (λ) and 435% increase in strain sensitivity (dλ/dH) (compared to normally compacted (NC) unsubstituted CoFe(2)O(4) (CFO)) of Zr(+4) doped CFO sample, Co(1.2)Zr(0.2)Fe(1.6)O(4), prepared by magnetic field assisted compaction, have been reported in this study. Magnetic field assisted compaction (MC) has been employed to process Zr-doped cobalt ferrites, Co(1+x)Zr(x)Fe(2−2x)O(4) (0 ≤ × ≤ 0.4), to further improve the magnetoelastic properties. Saturation magnetization (M (S)) and coercivity (H (C)) increase from ~426 kA/m and ~4.4 kA/m respectively, for x = 0, to ~552 kA/m and ~7.11 kA/m respectively for x = 0.2. Dramatic increase in λ was observed for MC samples (~ −360 ppm and ~−380 ppm for x = 0 and x = 0.2 respectively) compared to the NC samples (~−181 ppm and ~−185 ppm for x = 0 and x = 0.2 respectively). A remarkable quadruple increase in dλ/dH was observed in Zr-doped (x = 0.2) cobalt-ferrite (~4.3 × 10(−9) A(−1)m) compared to that of unsubstituted cobalt-ferrite (~1.24 × 10(−9) A(−1)m), while a fivefold increase in dλ/dH was observed for magnetically compacted (MC) Zr doped cobalt ferrite (x = 0.2) (~4.3 × 10(−9) A(−1)m) compared to normal compacted (NC) unsubstituted cobalt ferrite (~0.8 × 10(−9) A(−1)m). Nature Publishing Group UK 2017-08-11 /pmc/articles/PMC5554159/ /pubmed/28801628 http://dx.doi.org/10.1038/s41598-017-08160-1 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 Reddy, Monaji Vinitha Lisfi, Abdellah Pokharel, Sabin Das, Dibakar Colossal piezomagnetic response in magnetically pressed Zr(+4) substituted cobalt ferrites |
title | Colossal piezomagnetic response in magnetically pressed Zr(+4) substituted cobalt ferrites |
title_full | Colossal piezomagnetic response in magnetically pressed Zr(+4) substituted cobalt ferrites |
title_fullStr | Colossal piezomagnetic response in magnetically pressed Zr(+4) substituted cobalt ferrites |
title_full_unstemmed | Colossal piezomagnetic response in magnetically pressed Zr(+4) substituted cobalt ferrites |
title_short | Colossal piezomagnetic response in magnetically pressed Zr(+4) substituted cobalt ferrites |
title_sort | colossal piezomagnetic response in magnetically pressed zr(+4) substituted cobalt ferrites |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5554159/ https://www.ncbi.nlm.nih.gov/pubmed/28801628 http://dx.doi.org/10.1038/s41598-017-08160-1 |
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