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Crystals
Special Issues
Structural, Electronic and Vibrational Properties of Crystals
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Structural, Electronic and Vibrational Properties of Crystals

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

Deadline for manuscript submissions: closed (20 April 2021) | Viewed by 2822

Special Issue Editor

Dr. Alexey M. Pugachev

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Guest Editor
Institute of automation and Electrometry Russian Academy of Scienses, Novosibirsk, Russia
Interests: ferroelectrics; Raman and Brillouin light scattering; nonlinear optics

Special Issue Information

Dear Colleagues,

Crystals are a very important class of condensed matter finding extensive applications in pure and applied science. The variety of crystal properties determines the necessity of an integrated approach to the analysis of their properties.

The most important characteristic of crystals, which determines their basic fundamental properties, is their structure. The study of the crystal structure is associated with experts in X-ray diffraction, and neutron and electron diffraction. These studies are especially relevant for the design of new crystals, ceramics, and thin crystal layers.

Any real crystal structure is not in a static state. Vibrations of the crystal lattice lead to completely new material properties: nonelastic neutron, X-ray, and light scattering. Nonelastic (Raman and Brillouin) light scattering and IR absorption can provide information on the type of crystal lattice, vibrations and rotations of atoms and atomic aggregates, relaxation processes, velocities, and damping of elastic waves in a crystal.

Changes in the electronic subsystem of crystals lead to a number of phenomena that are actively used in science and technology. These properties are pyro- and piezoelectric response, photovoltaic effect, changes in susceptibility, fluorescence, etc. In addition to numerous technical applications, electronic effects are used to study the materials themselves.

All of these properties change at different frequencies of exposure, temperatures, and pressures, which are also the subject of active research at the present time.

This Special Issue on “Structural, Electronic, and Vibrational Properties of Crystals” is devoted to theoretical and experimental studies of the main crystal properties under various experimental and theoretical methods and external conditions. Scientists are encouraged to submit their manuscripts to this issue. The volume is open to any contributions involving the structural, electronic, and vibrational properties of crystals.

Dr. Alexey M. Pugachev
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

  • crystal structure
  • X-ray diffraction
  • neutron and electron diffraction
  • Raman and Brillouin light scattering
  • IR absorption
  • pyro- and piezoelectric response
  • photovoltaic effect
  • changes in susceptibility
  • fluorescence

Published Papers (1 paper)

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Research

19 pages, 3298 KiB  
Article
Relationships between the Structural, Vibrational, and Optical Properties of Microporous Cancrinite
by Roman Shendrik, Ekaterina Kaneva, Tatiana Radomskaya, Igor Sharygin and Alexander Marfin
Crystals 2021, 11(3), 280; https://0-doi-org.brum.beds.ac.uk/10.3390/cryst11030280 - 12 Mar 2021
Cited by 20 | Viewed by 2447
Abstract
The crystal-chemical, vibrational, and optical properties of microporous aluminosilicate cancrinite have been investigated by combining electron probe microanalysis, single-crystal X-ray diffraction, infrared (IR) absorption, Raman, UV-Visible absorption, and electron spin resonance spectroscopy. The behavior of the peaks in the IR spectra was also [...] Read more.
The crystal-chemical, vibrational, and optical properties of microporous aluminosilicate cancrinite have been investigated by combining electron probe microanalysis, single-crystal X-ray diffraction, infrared (IR) absorption, Raman, UV-Visible absorption, and electron spin resonance spectroscopy. The behavior of the peaks in the IR spectra was also studied during the dehydration of the sample. The analyzed sample has the following unit cell parameters (P63): a = 12.63189(14) Å, c = 5.13601(7) Å. The empirical formula, based on 12(Si + Al), is Na6.47Ca1.23K0.01[Al5.97Si6.03O24] (CO3)1.45(SO4)0.03Cl0.01·2H2O. The Al-Si framework of AB-type is formed by columns of based-shared “cancrinite” (CAN) cages, containing Na and H2O positions located on the 3-fold axis, and channels with CO3 groups, lying in two mutually exclusive and partially occupied positions in the center of the channel, and split Na/Ca cation sites. The revealed characteristics are somewhat different in comparison with the cancrinite structural features previously described in the literature. Studied crystals change color from grayish-pink to blue after X-ray irradiation (104 Gy). The blue color of the irradiated cancrinite is caused by the formation (CO3)−● radicals in the crystals. Combining the results obtained using the selected methods will provide a better understanding of the relationships between the structural, chemical, and optical-physical properties of microporous aluminosilicates. Full article
(This article belongs to the Special Issue Structural, Electronic and Vibrational Properties of Crystals)
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