Special Issue "Physical Properties of the Nanoscale Materials"

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials".

Deadline for manuscript submissions: closed (31 May 2021).

Special Issue Editors

Dr. Paweł Głuchowski
E-Mail Website
Guest Editor
Institute of Low Temperature and Structure Research, Polish Academy of Sciences, PL-50422 Wroclaw, Poland
Interests: nanocrystals; nanoceramics; rare earth ions; transition metal ions; spectroscopy; luminescence; magnetic properties
Special Issues and Collections in MDPI journals
Dr. Robert Tomala
E-Mail Website
Co-Guest Editor
Institute of Low Temperature and Structure Research, Polish Academy of Sciences, PL-50422 Wroclaw, Poland
Interests: luminescence properties of the rare earth ions in nanostructures; synthesis of nanomaterials; size-effects in nanomaterials; phosphors for white lighting
Special Issues and Collections in MDPI journals

Special Issue Information

Dear Colleagues,

An understanding of the impact of a particle’s size on its physical properties is of significant interest. Studies aimed at correlating the properties of nanomaterials, such as size, morphology, surface area and charge, composition, and type of structure, with optical, magnetic, biological, or chemical properties are under way. These fundamental studies will allow us, in the near future, to create the next generation of nanoscale devices. Using nanotechnology, materials can effectively be made to be stronger, lighter, more durable, and more reactive, and possess higher luminescence efficiency, higher thermal sensitivity, better electrical conductivity, higher magnetization, and higher bioactivity, among many other features. This Special Issue aims to present novel structures showing the impact of a grain’s size on its optical and magnetic properties. We encourage the submission of papers on the application of nanostructures in medicine, electronics, catalysis, and photonics. Other topics of interest include theoretical studies and experimental studies related to the size effect observed in powders, ceramics, thin films, and glasses.

Dr. Paweł Głuchowski
Dr. Robert Tomala
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 papers will be 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. Applied Sciences is an international peer-reviewed open access semimonthly 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 2000 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

  • nanocrystals
  • nanoceramics
  • glasses
  • rare earth ions
  • transition metal ions
  • spectroscopy
  • luminescence
  • magnetic properties
  • biochemistry
  • sensors
  • size effect.

Published Papers (1 paper)

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Research

Article
Impact of Alkali Ions Codoping on Magnetic Properties of La0.9A0.1Mn0.9Co0.1O3 (A: Li, K, Na) Powders and Ceramics
Appl. Sci. 2020, 10(24), 8786; https://doi.org/10.3390/app10248786 - 08 Dec 2020
Viewed by 454
Abstract
The aim of the work was to check how the introduction of alkali and cobalt ions into a manganese structure can affect the structural disorder and, in consequence, lead to the changes (improvements) of magnetic properties. The high-pressure sintering technique was applied to [...] Read more.
The aim of the work was to check how the introduction of alkali and cobalt ions into a manganese structure can affect the structural disorder and, in consequence, lead to the changes (improvements) of magnetic properties. The high-pressure sintering technique was applied to check if the external factor can modify the magnetization of manganites. Nanocrystalline La0.9A0.1Mn0.9Co0.1O3 (where A is Li, K, Na) powders were synthesized by the combustion technique. The respective powders were used for nanoceramics preparation by the high-pressure sintering technique. The structure and morphology of the compounds were studied by X-ray powder diffraction, scanning electron microscopy and energy-dispersive X-ray spectroscopy. Magnetization studies for all compounds were performed in order to check the changes induced by either codoping or the sintering pressure. It was found that the type of the dopant ion and sintering pressure produced significant changes to the magnetic properties of the studied compounds. Alkali ions lead to the stabilization of Co ions in the +2 oxidation state and the formation of positive exchange interactions Mn3+–Mn4+ and Co2+–Mn4+ and the subsequent increase in remanent magnetization. High sintering pressure leads to a decrease in grain size and reduction of long-range ferromagnetic order and lower magnetization. Full article
(This article belongs to the Special Issue Physical Properties of the Nanoscale Materials)
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