Abstract
The 300 and 1.5 K powder neutron diffraction patterns of Nd 2 Fe 16 TiD y have been measured. A Rietveld refinement of these data yields the Nd 2 Fe 16.3 Ti 0.7 D 4.8 stoichiometries for the compound. It indicates also that titanium occupies only the 6c crystallographic site and hydrogen the 9e and the 18h sites in the rhombohedral structure. The insertion of interstitial hydrogen produces a 4% increase in the unit-cell volume of the titanium compound at room temperature. In the range of 1.5 K, the parameter a decreases, but the parameter c increases. This phenomenon indicates that the thermal expansion along the c-axis exists despite of the occupancy of the 6c site by titanium. By insertion of hydrogen, the Curie temperature and the saturation magnetization increase.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
