Special Issue "Diamond Crystals Volume II"

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

Deadline for manuscript submissions: 31 July 2020.

Special Issue Editor

Guest Editor
Dr. Yuri N. Palyanov

1. VS Sobolev Institute of Geology and Mineralogy, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
2. Novosibirsk State University, Novosibirsk, Russia
Website | E-Mail
Interests: synthetic and natural diamonds; diamond synthesis and growth; high pressure high temperature; experimental modelling of natural diamond formation; diamond mineralogy; diamond properties and applications

Special Issue Information

Dear Colleagues,

Diamonds, possessing a remarkable range of extreme and outstanding properties superior to other materials, have been attracting huge interest as a versatile and technologically useful material. Advances in diamond synthesis and growth techniques have paved the way for this unique material for many existent and prospective applications, which now range from optics and electronics, to biomedicine and quantum computing. Besides its importance as the strategic future electronic material, diamonds have been the classical model object of fundamental research in solid-state physics, chemistry, and engineering. Diamonds occupy a very special place in Earth sciences, where they serve as an invaluable source of information about the Earth’s interiors. As the king of gems, diamonds are the key stone for the gem industry and gemmological science.

We invite researchers to contribute to the Special Issue “Diamond Crystals Volume II”, which is intendent to serve as a multidisciplinary forum covering broad aspects of the science, technology, and application of synthetic and natural diamonds. The predecessor Special Issue, “Diamond Crystals”, appeared in Crystal in 2017, and was well received by the community. The original research articles published in this Special Issue have gained more than 50 citations to date, and the printed edition of the Issue is currently available.   

 Potential topics include, but are not limited to, the following:

  • Synthesis and growth of diamond crystals
  • Genesis of natural diamonds
  • Diamond morphology
  • Real structure and properties of synthetic and natural diamonds
  • Characterisation of diamonds by spectroscopic, microscopic, and other advanced techniques
  • Exploitation of the remarkable properties of diamonds in various existent and emerging applications

Dr. Yuri Palyanov
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. 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 1400 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

  • Diamond crystals
  • Diamond growth and synthesis
  • High pressure high temperature (HPHT)
  • Chemical vapour deposition (CVD)
  • Natural diamonds
  • Diamond properties
  • Characterization
  • Diamond applications

Related Special Issue

Published Papers (1 paper)

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Research

Open AccessArticle
Effect of Rare-Earth Element Oxides on Diamond Crystallization in Mg-Based Systems
Crystals 2019, 9(6), 300; https://doi.org/10.3390/cryst9060300
Received: 14 May 2019 / Revised: 4 June 2019 / Accepted: 10 June 2019 / Published: 11 June 2019
PDF Full-text (2248 KB) | HTML Full-text | XML Full-text
Abstract
Diamond crystallization in Mg-R2O3-C systems (R = Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb) was studied at 7.8 GPa and 1800 °C. It was found that rare-earth oxide additives in an amount of 10 wt % [...] Read more.
Diamond crystallization in Mg-R2O3-C systems (R = Nd, Sm, Eu, Tb, Dy, Ho, Er, Tm, and Yb) was studied at 7.8 GPa and 1800 °C. It was found that rare-earth oxide additives in an amount of 10 wt % did not significantly affect both the degree of graphite-to-diamond conversion and crystal morphology relative to the Mg-C system. The effect of higher amounts of rare-earth oxide additives on diamond crystallization was studied for a Mg-Sm2O3-C system with a Sm2O3 content varied from 0 to 50 wt %. It was established that with an increase in the Sm2O3 content in the growth system, the degree of graphite-to-diamond conversion decreased from 80% at 10% Sm2O3 to 0% at 40% Sm2O3. At high Sm2O3 contents (40 and 50 wt %), instead of diamond, mass crystallization of metastable graphite was established. The observed changes in the degree of the graphite-to-diamond conversion, the changeover of diamond crystallization to the crystallization of metastable graphite, and the changes in diamond crystal morphology with increasing the Sm2O3 content attested the inhibiting effect of rare-earth oxides on diamond crystallization processes in the Mg-Sm-O-C system. The crystallized diamonds were studied by a suite of optical spectroscopy techniques, and the major characteristics of their defect and impurity structures were revealed. For diamond crystals produced with 10 wt % and 20 wt % Sm2O3 additives, a specific photoluminescence signal comprising four groups of lines centered at approximately 580, 620, 670, and 725 nm was detected, which was tentatively assigned to emission characteristic of Sm3+ ions. Full article
(This article belongs to the Special Issue Diamond Crystals Volume II)
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