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Intrinsic magnetic properties of hydrided and non-hydrided Nd 5 Fe 17 single crystals

Karpenkov, D. Yu. and Skokov, K. P. and Lyakhova, M. B. and Radulov, I. A. and Faske, T. and Skourski, Y. and Gutfleisch, O. (2018):
Intrinsic magnetic properties of hydrided and non-hydrided Nd 5 Fe 17 single crystals.
In: Journal of Alloys and Compounds, Elsevier Science Publishing, Switzerland, pp. 1012-1020, 741, ISSN 09258388, DOI: 10.1016/j.jallcom.2018.01.239, [Online-Edition: https://doi.org/10.1016/j.jallcom.2018.01.239],
[Article]

Abstract

We report on the spontaneous magnetization Ms, the exchange stiffness constant A and the magneto-crystalline anisotropy constants K-1, K-2, K-3 and K-4 of Nd5Fe17 and Nd5Fe17H16 single crystals. Field dependencies of magnetization M(H) were measured along a, b' and c principal crystallographic directions within the temperature range of 10-600 K and magnetic fields up to 40 T. Large anisotropies of spontaneous magnetization and high-field susceptibility were revealed for both compounds. The exchange stiffness parameter A was determined using Bloch's T-3/2 law. In order to provide high accuracy detection of K-1(T), K-2(T), K-3(T) and K-4(T), we used two different approaches: the modified Sucksmith-Thompson technique and the Neel's phase method. (C) 2018 Elsevier B.V. All rights reserved.

Item Type: Article
Erschienen: 2018
Creators: Karpenkov, D. Yu. and Skokov, K. P. and Lyakhova, M. B. and Radulov, I. A. and Faske, T. and Skourski, Y. and Gutfleisch, O.
Title: Intrinsic magnetic properties of hydrided and non-hydrided Nd 5 Fe 17 single crystals
Language: English
Abstract:

We report on the spontaneous magnetization Ms, the exchange stiffness constant A and the magneto-crystalline anisotropy constants K-1, K-2, K-3 and K-4 of Nd5Fe17 and Nd5Fe17H16 single crystals. Field dependencies of magnetization M(H) were measured along a, b' and c principal crystallographic directions within the temperature range of 10-600 K and magnetic fields up to 40 T. Large anisotropies of spontaneous magnetization and high-field susceptibility were revealed for both compounds. The exchange stiffness parameter A was determined using Bloch's T-3/2 law. In order to provide high accuracy detection of K-1(T), K-2(T), K-3(T) and K-4(T), we used two different approaches: the modified Sucksmith-Thompson technique and the Neel's phase method. (C) 2018 Elsevier B.V. All rights reserved.

Journal or Publication Title: Journal of Alloys and Compounds
Volume: 741
Publisher: Elsevier Science Publishing, Switzerland
Uncontrolled Keywords: Single crystal, Intrinsic magnetic properties, Exchange stiffness, Magnetocrystalline anisotropy, NdFe compound, Hydride
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Material Science
11 Department of Materials and Earth Sciences > Material Science > Functional Materials
11 Department of Materials and Earth Sciences > Material Science > Structure Research
Date Deposited: 12 Mar 2018 10:05
DOI: 10.1016/j.jallcom.2018.01.239
Official URL: https://doi.org/10.1016/j.jallcom.2018.01.239
Funders: D. Karpenkov gratefully acknowledge the financial support of the Ministry of Education and Science of the Russian Federation in the framework of Increase Competitiveness Program of NUST "MISiS" (No K4-2015-013)., Lyakhova M.B. gratefully acknowledge of Russian Science Foundation Grant No. 15-12-10008., The support from the German federal state of Hessen through its excellence programme LOEWE "RESPONSE" is gratefully acknowledged., We acknowledge the support of the HLD at HZDR, member of the European Magnetic Field Laboratory (EMFL).
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