Intergrowth of several solid phases from the Y-Ni-B-C system in a large YNi2B2C crystal

TitleIntergrowth of several solid phases from the Y-Ni-B-C system in a large YNi2B2C crystal
Publication TypeJournal Article
Year of Publication2008
AuthorsWeissbach T, Leisegang T, Kreyssig A, Frontzek M, Hoffmann JU, Souptel D, Kohler A, Behr G, Paufler P, Meyer DC
Journal TitleJournal of Applied Crystallography
Date PublishedAug
Type of ArticleArticle
ISBN Number0021-8898
Accession NumberISI:000257700100012
Keywordsgrowth, HO, HONI2B2C, intermetallic compounds, magnetism, single-crystals, superconductivity, tb, THERMAL-TREATMENT

A YNi2B2C single crystal containing traces of foreign phases was inspected by means of neutron and X-ray diffraction as well as scanning electron microscopy and X-ray spectroscopy methods. The diffraction patterns obtained from the experiments look similar to those expected for a superstructure. Nevertheless, they can be interpreted as crystallographically oriented precipitations of YB2C2 and Ni2B within the YNi2B2C crystal, formed during the cooling process. The orientation relation between the lattices was obtained from experimental neutron and X-ray data. Structure refinements of the collected X-ray data were performed by separation of the intensity data of the individual phases. Scanning electron microscopy images of the inclusions found on a polished cross section of the crystal are presented; their chemical composition was determined using wavelength-dispersive X-ray analysis.

Alternate JournalJ. Appl. Crystallogr.