Tungstate Materials

Dear Colleagues,

The wolframite and scheelite structure are common structure types for ABO4 compounds. The wolframite structure may be described as made up of hexagonally close-packed oxygens with certain octahedral sites filed by A and B cations in an ordered way. The scheelite structure may be regarded as a cubic close-packed array of A2+ and BO42- ions which are ordered. The oxygens are three coordinates to cations in both the scheelite and the wolframite structure.

Tungstate materials such as BaWO4, PbWO4, CaWO4, or SrWO4 are remarkably interesting because of their applications as laser host material or scintillators. Doped wolframite and scheelite single crystals with alkali metals (Me) or rare-earth ions (Re) display the greatest possibility of further applications. Doping with trivalent ions to make them applicable requires charge compensation which may be provided, for example, by structural defects or proper co-doping with alkaline metal ions.

The doping process with different RE ions leads to different optical or magnetic properties of the doped hosts. The application of different methods may lead to different structural defects in grown crystals and changed optical and magnetic properties. Doped wolframite and scheelite single crystals (ABO4 compounds) with alkali earth metals (Me) or rare-earth ions (Re) greatly increases the further possibility of application as luminescence and solid-state laser materials.

This Special Issue is a very attractive way to publish research results related to ABO4 compounds beginning from preparations of such materials, through an investigation of their properties: magnetic, optical, laser action, and so on, and, finally, to the applications their compounds in different areas. The Special Issue is the perfect place to publish both theoretical and experimentally papers focused on wolframite and scheelite structure (ABO4 compounds) doped and co-doped with alkali metals (Me) and/or rare-earth ions (Re), which are of great importance today and will have even greater significance in the future.

Prof. Dr. Tomasz Bodziony
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.

• Scheelite
• Wolframite
• ABO4
• Rare-earth ions
• Transition metal ions