Crystallographic phase transition within the magnetically ordered state of Ce2Fe17

TitleCrystallographic phase transition within the magnetically ordered state of Ce2Fe17
Publication TypeJournal Article
Year of Publication2007
AuthorsKreyssig A, Chang S, Janssen Y, Kim JW, Nandi S, Yan JQ, Tan L, McQueeney RJ
Journal TitlePhysical Review B
Date PublishedAug
Type of ArticleArticle
ISBN Number1098-0121
Accession NumberISI:000249155100092
Keywordsneutron-diffraction, pressure, rare-earth, system, X=0

X-ray diffraction experiments were performed on polycrystalline and single-crystal specimens of Ce2Fe17 at temperatures between 10 and 300 K. Below T-t=118 +/- 2 K, additional weak superstructure reflections were observed in the antiferromagnetically ordered state. The superstructure can be described by a doubling of the chemical unit cell along the c direction in hexagonal notation with the same space group R(3) over bar m as the room-temperature structure. The additional antiferromagnetic satellite reflections observed in earlier neutron diffraction experiments can be conclusively related to the appearance of this superstructure.

Alternate JournalPhys. Rev. B