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Inorganic Solid State and Materials Chemistry
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Inorganic Solid State and Materials Chemistry

A special issue of Materials (ISSN 1996-1944).

Deadline for manuscript submissions: closed (15 February 2017) | Viewed by 4135

Special Issue Editor

Prof. Dr. Tilo Söhnel

E-Mail Website
Guest Editor
School of Chemical Sciences, University of Auckland, Auckland, New Zealand
Interests: structure-property relationships of inorganic materials; solid state chemistry; magnetism; synchrotron and neutron diffraction and spectroscopy, X-ray crystallography

Special Issue Information

Dear Colleagues,

Inorganic solid-state materials play important roles in daily life because of their superior electronic, magnetic and structural properties. Not surprisingly, new materials with useful structural, magnetic and electrical properties have always been of great interest in solid-state chemistry. This Special Issue of Materials is targeted to aspects of preparation, as well as experimental and theoretical characterization of inorganic solid-state materials. This could include magnetic structures, electronic structures, and high-resolution diffraction studies of phase transitions, as well as theoretical studies of inorganic materials.

Assoc. Prof. Dr. Tilo Söhnel
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. Materials 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 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

  • solid state
  • inorganic materials
  • magnetic and electronic structural properties

Published Papers (1 paper)

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Research

2704 KiB  
Article
Investigation of the Defect Structure of Congruent and Fe-Doped LiNbO3 Powders Synthesized by the Combustion Method
by You-Yun Li, Hao-Long Chen, Guo-Ju Chen, Chia-Liang Kuo, Ping-Hung Hsieh and Weng-Sing Hwang
Materials 2017, 10(4), 380; https://doi.org/10.3390/ma10040380 - 02 Apr 2017
Cited by 10 | Viewed by 3557
Abstract
Fe-doped LiNbO3 synthesized by the combustion method to seek new multiferroic materials exhibits room-temperature ferromagnetism, as reported in our previous work [1]. In this work, the defect structure of congruent and Fe-doped LiNbO3 (0.57–3.3 mol %) powders was investigated in detail [...] Read more.
Fe-doped LiNbO3 synthesized by the combustion method to seek new multiferroic materials exhibits room-temperature ferromagnetism, as reported in our previous work [1]. In this work, the defect structure of congruent and Fe-doped LiNbO3 (0.57–3.3 mol %) powders was investigated in detail by several methods. The molar ratio of [Li]/([Li]+[Nb]) was determined by the Curie temperature (Tc) via DSC. Two peaks of Tc were observed due to phase splitting [2], and the phase at lower Tc disappears as the Fe doping concentration increases. The coexistence of two different oxidation states of Fe ions in LiNbO3 was probed by XPS and UV-Vis spectroscopy. The Raman spectra exhibit displacements along the c axis of Li and Nb ions, and a deformation of the NbO6 framework owing to Fe doping. Several doping models were applied in the Rietveld refinement of powder X-ray diffraction collected by synchrotron radiation. The fitting by the Nb vacancy model leads to an improbably distorted structure of congruent LiNbO3. In Fe-doped LiNbO3, we conjecture that Li and Nb vacancies coexist in the lattice structure; Fe+2/Fe+3 ions are substituted for Li ions at the regular Li site and may push the anti-site NbLi ion back to the regular Nb site. Full article
(This article belongs to the Special Issue Inorganic Solid State and Materials Chemistry)
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