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High-pressure phase of CeRu2: A magnetic superconductor with two charge states of Ru ionsстатья
Статья опубликована в высокорейтинговом журнале
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: 27 мая 2015 г.
- Авторы: Tsvyashchenko and L N Fomicheva A.V., Sorokin A.A., Ryasny G.K., Komissarova B.A., Shpinkova L.G., Klementiev K.V., Kuznetsov A.V., Menushenkov A.P., Trofimov V.N., Primenko A.E., Cortes R.
- Журнал: Physical Review B
- Том: 65
- Номер: 174513
- Год издания: 2002
- Издательство: American Physical Society
- Местоположение издательства: United States
- Первая страница: 174513-1
- Последняя страница: 174513-11
- DOI: 10.1103/PhysRevB.65.174513
- Аннотация: The intermetallic compounds LaRu2 and CeRu2, as well as several quasibinary systems Ce12xLaxRu2, were synthesized at a pressure of 8 GPa. The x-ray diffraction data showed the pure cubic C15 structure for all samples. The x-ray absorption measurements gave the value 3.23 for the Ce valence. Time-differential perturbed angular correlation measurements with the 111In-doped samples have shown ~i! 111In substituted for Ru;~ii! in LaRu2 a single value of the quadrupole frequency nQ5234 MHz for the daughter 111Cd nuclei wasobserved; ~iii! in CeRu2 two distinct equally populated sites for 111Cd were revealed with nQ=218 and nQ=153 MHz. The low-temperature magnetic measurements showed that magnetic moments about 0.3mB per formula unit are inherent in all samples and indicated at a coexistence of superconductivity and magneticordering. In particular, the magnetic and superconducting correlations are developing, most probably, in the same system of ruthenium 4d electrons.
- Добавил в систему: Цвященко Анатолий Васильевич