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High-pressure synthesis, crystal growth, phase diagrams, structural and magnetic properties of Y(2)Ba(4)Cu(n)O2(2n+x), HgBa2Can-1CunO2n+2+delta and quasi-one-dimensional cupratesстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Karpinski J., Meijer G.I., Schwer H., Molinski R., Kopnin E., Conder K, Angst M., Jun J., Kazakov S., Wisniewski A., Puzniak R., Hofer J., Alyoshin V., Sin A.
- Журнал: Superconductor Science and Technology
- Том: 12
- Номер: 9
- Год издания: 1999
- Издательство: IOP Publishing
- Местоположение издательства: [Bristol, UK], England
- Первая страница: R153
- Последняя страница: R181
- DOI: 10.1088/0953-2048/12/9/201
- Аннотация: In this paper we present a review of high-gas-pressure single crystal growth studies of YBa2Cu4O8 and Y2Ba4Cu7O15-x performed in oxygen pressure up to 3000 bar and Hg1-xMxBa2Can-1CunO2n+2+delta (M = Pb, Re; n = 1-7) compounds in argon pressure up 11 000 bar at temperature up to 1200 degrees C. Chain compounds A(1-x)CuO(2) (A = Sr, Ca, Ba) have been synthesized at high oxygen pressure up to 2000 bar. High-pressure phase diagram studies of the investigated systems are also discussed. Structure analyses of Y2Ba4CunO2n+x (n = 6-8), Hg1-xMxBa2Can-1CunO2n+2+delta (M = Pb, Re; n = 1-8), Sr0.73CuO2 and (Sr,Ca)(4)Cu6O10 single crystals have been performed. The effects of substitutions and trends in bondlengths are discussed. The vortex state properties of HgBa2Ca2Cu3O8+delta and YBa2Cu4O8 single crystals are compared. For Hg-based compounds, the influence of oxygen content, chemical substitutions and radiation defects on vortex pinning were determined. The quasi-one-dimensional cuprates Ca0.83CuO2 and Sr0.73CuO2 show an antiferromagnetically ordered state of long-range 3D character at T < 10 K. The spin dynamics of Sr0.73CuO2 , measured by inelastic neutron scattering, indicate that this ordered state coexists with a dimerized singlet ground state.
- Добавил в систему: Казаков Сергей Михайлович