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Metals
Special Issues
Synthesis, Characterization and Simulation of Novel Magnetic Intermetallic Compounds
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Synthesis, Characterization and Simulation of Novel Magnetic Intermetallic Compounds

A special issue of Metals (ISSN 2075-4701). This special issue belongs to the section "Entropic Alloys and Meta-Metals".

Deadline for manuscript submissions: closed (31 March 2024) | Viewed by 2372

Special Issue Editors

Dr. Yuemei Zhang

E-Mail Website
Guest Editor
Department of Chemistry and Physics, Warren Wilson College, Asheville, NC 28815, USA
Interests: first-principle calculations; spintronic materials; permanent magnets; magnetocaloric materials; machine learning; renewable energy; electrocatalysis
Dr. Neetika Sharma

E-Mail Website
Guest Editor
Jülich Centre for Neutron Science JCNS-2, Peter Grünberg Institute PGI-4, Forschungszentrum Jülich GmbH, Jülich, Germany
Interests: magnetic properties; magnetic materials; chemical synthesis; X-ray and neutron diffraction; first-principles density functional theory calculations; intermetallics

Special Issue Information

Dear Colleagues,

Magnetic materials form a basis for most of the critical and key technologies of today’s society, such as data storage and retrieval, power generation, magnetic sensing, magnetic navigation and magnetic refrigeration. Thus, the demand for these materials will continue to increase in the future. Intermetallic compounds containing transition metals and/or rare-earth metals provide a splendid "playground" for the design of novel functional magnetic materials. Unlike salts and semiconductors, which typically exist for a narrow range of compositions or involve limited diversity in the oxidation states of the constituent elements, many intermetallic magnets exist for a wide range of compositions, diversity of crystal structures and tunable magnetic and electronic properties. This Special Issue aims to address the fundamental scientific challenge of synthesizing, characterizing and measuring the physical properties of magnetic intermetallic compounds. This Special Issue also aims to use first-principle calculations and computational simulations to understand why some materials are ordered magnetically and others are not and what controls the magnetic phase transition, the nature and strength of the magnetic interactions and magnetic anisotropy in a compound.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the syntheses, characterization, physical properties and theoretical results of magnetic intermetallic compounds.

We look forward to receiving your contributions.

Dr. Yuemei Zhang
Dr. Neetika Sharma
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • intermetallic compounds
  • tunable magnetic properties
  • transition metals
  • rare-earth metals
  • magnetocalorics
  • permanent magnets
  • spin-electronics
  • ferromagnetism
  • antiferromagnetism

Published Papers (2 papers)

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Research

13 pages, 2630 KiB  
Article
Influence of the Geometrical Aspect Ratio on the Magneto-Structural Properties of Co2MnSi Microwires
by Asma Wederni, Mohamed Salaheldeen, Mihail Ipatov, Valentina Zhukova and Arcady Zhukov
Metals 2023, 13(10), 1692; https://doi.org/10.3390/met13101692 - 04 Oct 2023
Viewed by 721
Abstract
This present study illustrates the strong effect of geometrical parameters on the magneto-structural properties of Co2MnSi glass-coated microwires prepared using the Taylor–Ulitovsky method. Thus, there are three samples with different geometrical aspect ratios (ρ). The XRD analysis shows a [...] Read more.
This present study illustrates the strong effect of geometrical parameters on the magneto-structural properties of Co2MnSi glass-coated microwires prepared using the Taylor–Ulitovsky method. Thus, there are three samples with different geometrical aspect ratios (ρ). The XRD analysis shows a significant change by modifying the aspect ratio; for ρ = 0.42, the main peak with miller indices (220) is recognized as an A2-type disordered cubic structure. For the sample with ρ = 0.46, mixed L21 and B2 cubic structures are observed. Meanwhile, in the sample with a low aspect ratio, ρ = 0.30, the perfect L21 ordered cubic structure is attained. Magnetic characterization has been carried out at a wide range of temperatures and magnetic fields. A significant increase in coercivity and normalized reduced remanence by decreasing the aspect ratio is detected. The change in the magnetic properties is attributed to the modification in the microstructure, which is induced during the fabrication process. Such a dependence on the microstructure and magnetic properties on the ρ-ratio can be associated either with the internal stress distribution and magnitude or with different quenching rates of microwires with different aspect ratios. The current findings demonstrate the tunability of the microstructure and magnetic properties of Co2MnSi-glass-coated microwires simply via a small modification in the geometric properties during the manufacturing process and without excreting any additional post-processing. The variation in the geometric parameters of Co2MnSi glass-coated microwires allows us to tune the magnetic properties and structure, which is essentially advantageous for sensing device development. Full article
(This article belongs to the Special Issue Synthesis, Characterization and Simulation of Novel Magnetic Intermetallic Compounds)
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8 pages, 1289 KiB  
Article
Thermoelectric Power in Ce Systems with Unstable Valence
by Tomasz Toliński
Metals 2021, 11(9), 1475; https://doi.org/10.3390/met11091475 - 17 Sep 2021
Cited by 1 | Viewed by 1297
Abstract
In this paper, we report on a few exemplary tests of the applicability of analysis based on the interconfiguration fluctuation model (ICF) for a description of the temperature dependence of the thermoelectric power, S(T). The examples include a series of [...] Read more.
In this paper, we report on a few exemplary tests of the applicability of analysis based on the interconfiguration fluctuation model (ICF) for a description of the temperature dependence of the thermoelectric power, S(T). The examples include a series of alloys: CeNi2(Si1−yGey)2, Ce(Ni1−xCux)2Si2, and the fluctuating valence (FV) compound CeNi4Ga. The two series develop from CeNi2Si2 being the FV system, where the f states occupation increases progressively with the Ge or Cu substitution. We find here that the ICF model parameters are of similar magnitude both for the analysis of the temperature dependence of the magnetic susceptibility and thermoelectric power. The ICF-type model appears to be a powerful tool for the analysis of S(T) dependences in Ce-based FV compounds and alloys. Full article
(This article belongs to the Special Issue Synthesis, Characterization and Simulation of Novel Magnetic Intermetallic Compounds)
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