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Manganese mono-boride, an inexpensive room temperature ferromagnetic hard material

We synthesized orthorhombic FeB-type MnB (space group: Pnma) with high pressure and high temperature method. MnB is a promising soft magnetic material, which is ferromagnetic with Curie temperature as high as 546.3 K, and high magnetization value up to 155.5 emu/g, and comparatively low coercive fie...

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Detalles Bibliográficos
Autores principales: Ma, Shuailing, Bao, Kuo, Tao, Qiang, Zhu, Pinwen, Ma, Teng, Liu, Bo, Liu, Yazhou, Cui, Tian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5338324/
https://www.ncbi.nlm.nih.gov/pubmed/28262805
http://dx.doi.org/10.1038/srep43759
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author Ma, Shuailing
Bao, Kuo
Tao, Qiang
Zhu, Pinwen
Ma, Teng
Liu, Bo
Liu, Yazhou
Cui, Tian
author_facet Ma, Shuailing
Bao, Kuo
Tao, Qiang
Zhu, Pinwen
Ma, Teng
Liu, Bo
Liu, Yazhou
Cui, Tian
author_sort Ma, Shuailing
collection PubMed
description We synthesized orthorhombic FeB-type MnB (space group: Pnma) with high pressure and high temperature method. MnB is a promising soft magnetic material, which is ferromagnetic with Curie temperature as high as 546.3 K, and high magnetization value up to 155.5 emu/g, and comparatively low coercive field. The strong room temperature ferromagnetic properties stem from the positive exchange-correlation between manganese atoms and the large number of unpaired Mn 3d electrons. The asymptotic Vickers hardness (AVH) is 15.7 GPa which is far higher than that of traditional ferromagnetic materials. The high hardness is ascribed to the zigzag boron chains running through manganese lattice, as unraveled by X-ray photoelectron spectroscopy result and first principle calculations. This exploration opens a new class of materials with the integration of superior mechanical properties, lower cost, electrical conductivity, and fantastic soft magnetic properties which will be significant for scientific research and industrial application as advanced structural and functional materials.
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spelling pubmed-53383242017-03-08 Manganese mono-boride, an inexpensive room temperature ferromagnetic hard material Ma, Shuailing Bao, Kuo Tao, Qiang Zhu, Pinwen Ma, Teng Liu, Bo Liu, Yazhou Cui, Tian Sci Rep Article We synthesized orthorhombic FeB-type MnB (space group: Pnma) with high pressure and high temperature method. MnB is a promising soft magnetic material, which is ferromagnetic with Curie temperature as high as 546.3 K, and high magnetization value up to 155.5 emu/g, and comparatively low coercive field. The strong room temperature ferromagnetic properties stem from the positive exchange-correlation between manganese atoms and the large number of unpaired Mn 3d electrons. The asymptotic Vickers hardness (AVH) is 15.7 GPa which is far higher than that of traditional ferromagnetic materials. The high hardness is ascribed to the zigzag boron chains running through manganese lattice, as unraveled by X-ray photoelectron spectroscopy result and first principle calculations. This exploration opens a new class of materials with the integration of superior mechanical properties, lower cost, electrical conductivity, and fantastic soft magnetic properties which will be significant for scientific research and industrial application as advanced structural and functional materials. Nature Publishing Group 2017-03-06 /pmc/articles/PMC5338324/ /pubmed/28262805 http://dx.doi.org/10.1038/srep43759 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Ma, Shuailing
Bao, Kuo
Tao, Qiang
Zhu, Pinwen
Ma, Teng
Liu, Bo
Liu, Yazhou
Cui, Tian
Manganese mono-boride, an inexpensive room temperature ferromagnetic hard material
title Manganese mono-boride, an inexpensive room temperature ferromagnetic hard material
title_full Manganese mono-boride, an inexpensive room temperature ferromagnetic hard material
title_fullStr Manganese mono-boride, an inexpensive room temperature ferromagnetic hard material
title_full_unstemmed Manganese mono-boride, an inexpensive room temperature ferromagnetic hard material
title_short Manganese mono-boride, an inexpensive room temperature ferromagnetic hard material
title_sort manganese mono-boride, an inexpensive room temperature ferromagnetic hard material
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5338324/
https://www.ncbi.nlm.nih.gov/pubmed/28262805
http://dx.doi.org/10.1038/srep43759
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