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Spin ladder compound Pb0.55Cd0.45V2O5: Synthesis and investigationстатья
Статья опубликована в высокорейтинговом журнале
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: Tsirlin Alexander A., Shpanchenko Roman V., Antipov Evgeny V., Bougerol Catherine, Hadermann Joke, Van Tendeloo Gustaaf, Schnelle Walter, Rosner Helge
- Журнал: Physical Review B
- Том: 76
- Номер: 10
- Год издания: 2007
- Издательство: American Physical Society
- Местоположение издательства: United States
- Первая страница: 104429
- DOI: 10.1103/PhysRevB.76.104429
- Аннотация: The complex oxide Pb0.55Cd0.45V2O5 was synthesized and investigated by means of x-ray powder diffraction, electron diffraction, magnetic susceptibility measurements, and band structure calculations. Its structure is similar to that of MV2O5 compounds (M=Na, Ca), giving rise to a spin system of coupled S=1/2 two-leg ladders. Magnetic susceptibility measurements reveal a spin gap-like behavior with Delta approximate to 270 K and a spin singlet ground state. Band structure calculations suggest Pb0.55Cd0.45V2O5 to be a system of weakly coupled dimers in perfect agreement with the experimental data. Pb0.55Cd0.45V2O5 provides an example of the modification of the spin system in layered vanadium oxides by cation substitution. Simple correlations between the cation size, geometrical parameters, and exchange integrals for the MV2O5-type oxides are established and discussed.
- Добавил в систему: Антипов Евгений Викторович