Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
3.6
2.7
Journals
Crystals
Special Issues
Magnetic Materials
share announcement

Magnetic Materials

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".

Deadline for manuscript submissions: closed (30 June 2023) | Viewed by 2484

Special Issue Editor

Dr. Nikolia Lalioti

E-Mail Website
Guest Editor
Department of Chemistry, University of Patras, Patra, Greece
Interests: hybrid carbon-based nanomaterials; spin crossover (SCO); single-molecule magnets (SMMs) and single-chain magnets (SCM) and the study of their magnetic behavior; application of hybrid materials in medicine (MRI agents)

Special Issue Information

Dear Colleagues,

Molecular magnetism is an interdisciplinary and rapidly developed research area of materials combining unique magnetic properties and other features, such as low density, transparency, and biocompatibility. Furthermore, molecular magnets can be treated as functional materials, which denotes that their properties can change under the application of external stimuli, such as magnetic or electric fields, temperature, and light or solvent content. Photomagnetism, spin crossover transition, magnetic sponge-like behavior or sorption capacity are only some of the examples of molecular magnets’ functionalities. In the last few years, there has also been significant interest in the investigation of low-dimensional magnets motivated by their potential applicability in qubits, molecular spintronics, high-density magnetic storage or nanoscale devices.

This Special Issue will cover recent progress and novel trends in the field of molecular magnetism. Its aim is to collect several high-quality papers (full papers, communications, or reviews) presenting advances in synthesis, physicochemical characterization, as well as applications of magnetic molecular materials. In particular, the topics of interest include but are not limited to:

  • Novel functionalities of molecular magnets: luminescence thermometers, photomagnetism, humidity-sensitive magnetism;
  • Spin switching molecular compounds: spin crossover (SCO) from 0D to 3D polymeric structures;
  • Slow relaxation in molecular materials: single-molecule magnets (SMM) and single-chain magnets (SCM); hybrid materials based on SMMs and graphene and/or chemically modified graphene products;
  • Synthesis and characterization of molecular materials of reduced dimensionality: thin films and nanoparticles;

Molecular nanomagnets for future applications: molecular spintronics, quantum information processing, and information technologies.

Dr. Nikolia Lalioti
Guest Editor

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. Crystals 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

  • hybrid materials based on SMMs
  • single-chain magnets (SCM)
  • single-molecule magnets (SMMs)
  • spintronics
  • spin crossover (SCO)
  • molecular nanomagnets

Published Papers (2 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

16 pages, 37929 KiB  
Article
Magnetic and Terahertz–Infrared Properties of Nanodispersed Hexaferrite SrxBa(1−x)Fe12O19 Solid Solutions
by Andrey Kovalev, Denis Vinnik, Svetlana Gudkova, Dmitry Zherebtsov, Vladimir Zhivulin, Sergey Taskaev, Elena Zhukova, Asmaa Ahmed, Pavel Abramov and Mikhail Talanov
Crystals 2023, 13(9), 1354; https://doi.org/10.3390/cryst13091354 - 7 Sep 2023
Viewed by 1114
Abstract
Hexagonal ferrites with the formula SrxBa(1−x)Fe12O19 (x = 0; 0.3; 0.5; 0.7; and 1) were prepared using the citrate method. The main feature of this synthesis is a relatively low calcination temperature of 700 °C. [...] Read more.
Hexagonal ferrites with the formula SrxBa(1−x)Fe12O19 (x = 0; 0.3; 0.5; 0.7; and 1) were prepared using the citrate method. The main feature of this synthesis is a relatively low calcination temperature of 700 °C. An X-ray diffraction study revealed a single-phase material. According to SEM, the particles were 50−70 nm in diameter. The Curie temperature of the samples that were determined using the DSC method varied in a very narrow range of 455−459 °C. Analysis of the magnetic hysteresis loops obtained at 300 K and 50 K indicated all samples as magnetically hard materials in a single-domain state. The maximal magnetic characteristics encompass strontium hexaferrite. The terahertz spectra of complex dielectric permittivity and the spectra of infrared reflectivity were measured at room temperature in the range of 6–7000 cm−1. The obtained broad-band spectra of the real and imaginary parts of permittivity reveal significant changes associated with structural distortions of the (Sr,Ba)O12 anti-cuboctahedron caused by the substitution of Ba2+ with Sr2+ in the same crystallographic positions. Full article
(This article belongs to the Special Issue Magnetic Materials)
►▼ Show Figures

Figure 1

13 pages, 3668 KiB  
Article
Single-Crystal Growth of a Cubic Laves-Phase Ferromagnet HoAl2 by a Laser Floating-Zone Method
by Naoki Kikugawa, Takashi Kato, Momoko Hayashi and Hitoshi Yamaguchi
Crystals 2023, 13(5), 760; https://doi.org/10.3390/cryst13050760 - 3 May 2023
Cited by 1 | Viewed by 1127
Abstract
The successful growth of single crystals of a cubic Laves-phase material HoAl2 with the space group Fd-3m is reported in this study. The crystals were grown by a floating-zone method with five laser diodes as a heat source. Al-rich feed [...] Read more.
The successful growth of single crystals of a cubic Laves-phase material HoAl2 with the space group Fd-3m is reported in this study. The crystals were grown by a floating-zone method with five laser diodes as a heat source. Al-rich feed rods were prepared as compensation for heavy evaporation during the growth. The nominal ratio for the feed rods was optimized as Ho:Al = 1:2.5. Single crystals of HoAl2 with a length of 50 mm were first grown in this technique. Obtaining the large-sized crystal by the floating-zone method enabled us to systematically explore the physical properties using the same batch crystal. The crystal possessed a second-ordered ferromagnetic transition at 29 K and a first-ordered spin-reorientation transition at 20 K. The bulk physical properties, such as specific heat, magnetic susceptibility, isothermal magnetization, and thermal expansion measurements, were measured. Additionally, a magnetocaloric effect was evaluated by the magnetic entropy change. We demonstrate that anisotropic physical properties along the principal axes ([100], [110], and [111]) emerged below the magnetically ordered states, in contrast to the isotropic behavior in the paramagnetic state. Full article
(This article belongs to the Special Issue Magnetic Materials)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-2
Back to TopTop