File:The unit cell view for the model.jpg

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English: The unit cell view for the model P'3 based on Na0.62CoO2 after ionic exchange (space group C2/m) and electron-density distribution at the slice along oxygen atoms. (Reference: Possible pathway to discovery of superconductivity above 200K (the complete article, pdf). Please, cite as: V.A.Volochaev, Inženernyj vestnik Dona (Rus), 2015, No 4, ISSN 2073-8633. Based on crystal chemistry analysis and electron-density calculations, author is suggesting the concept of influence of protons on superconductivity and indicating the ideas for determination of superconducting materials with Tc≥200K. The directions for further research in the field of superconducting materials development are represented. According to submitted conception, the best results, with respect of estimated Tc enhancement, appear for a sample with an optimal (smooth) interlayer electrostatic potential and high concentration of mobile protons. A superconducting impurity in some known layered phases would be a plausible explanation for anomalies in physical properties nearly 200K and above this limit. The picture was made using VESTA freeware.
Русский: Вид элементарной ячейки модели Р'3 основанной на Na0.62CoO2 после ионного обмена (пространственная группа C2/m). (Литература: Possible pathway to discovery of superconductivity above 200K (the complete article, pdf). Please, cite as: V.A.Volochaev, Inženernyj vestnik Dona (Rus), 2015, No 4, ISSN 2073-8633.) На основе кристаллохимического анализа и расчётов распределения электронной плотности, автором предлагается концепция влияния протонов на сверхпроводимость и предлагаются пути для определения сверхпроводящих фаз с Тс>200K. Показаны направления для дальнейших исследований в области разработки сверхпроводящих материалов. В соответствии с представленной концепцией, наилучшие результаты могут быть получены для образца с оптимальным (гладким) межслоевым электростатическим потенциалом и высоким содержанием подвижных протонов. Сверхпроводящая примесь в некоторых известных материалах может быть удачным объяснением аномалий физических свойств около 200К и выше этого предела. Изображение было создано с помощью свободной программы VESTA.
English: The unit cell view for the model P'3 based on Na0.62CoO2 after ionic exchange (s.g.C2/m) and electron-density distribution at the slice along oxygen atoms.
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Author Vadim A. Volochaev, ResearcherID: N-3239-2014 (Chemistry Department, Southern Federal University, Rostov-on-Don, Russia)

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