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Cadmium copper selenite chloride, CdCu2(SeO3)2Cl2, an insulating spin gap systemстатья
Информация о цитировании статьи получена из
Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 1 декабря 2021 г.
- Авторы: Murtazoev Alisher F., Berdonosov Peter S., Tafeenko Victor A., Dolgikh Valery A., Danilovich Igor L., Pchelkina Zlata V., Vasiliev Alexander N.
- Журнал: Journal of Solid State Chemistry
- Год издания: 2021
- Издательство: Elsevier B.V.
- Местоположение издательства: Netherlands
- Номер статьи: 122518
- DOI: 10.1016/j.jssc.2021.122518
- Аннотация: Novel copper cadmium selenite chloride has been synthesized via vapor transport reaction as well as by solid state process. CdCu2(SeO3)2Cl2 crystallizes in a monoclinic space group I2/a with cell constants a = 7.8057(3) Å, b = 9.6036(4) Å, c = 10.7817(5) Å and β = 102.362(4)°, Z = 4. Its crystal structure can be described as an open channel three-dimensional framework, formed by [CdO2Cl4] and [CuO4Cl2] polyhedra interconnected by pyramidal SeO3 groups. The copper polyhedra form magnetically isolated dimers with a spin gap Δ = 38.7 ± 0.8 meV, as defined from magnetic susceptibility measurements. The electron band gap estimated by diffuse reflectance method Eg = 2.82 ± 0.02 eV is in agreement with the yellow-green color of the substance. Density functional theory provides the values of electron (2.4 eV) and spin (36.6 meV) gaps consistent with experimental observations.
- Добавил в систему: Бердоносов Петр Сергеевич