The magnetic structure of the compound Ho5Sb3статья
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.
Аннотация:We have investigated the magnetic behavior of Ho5Sb3 compound (Mn5Si3-type, hexagonal; a = 0.8865(1) nm, c = 0.6232(1) nm, as derived from X-ray Guinier powder pattern) by using the techniques of magnetization, electrical resistivity, heat capacity and neutron diffraction. We find that Ho5Sb3 exhibits a ferrimagnetic type (Ferrimagnet I) ordering below 60K with propagation vector K0 = [0, 0, 1] and K1 = [Kx, 0, 0]. Below 40 K, the thermal variation of magnetic reflections and the appearance of an additional magnetic component with propagation vector K2 = [0, 1/2, 0] show the onset of an antiferromagnetic type of ordering in the magnetic structure; which evolves into yet another ferrimagnetic structure (Ferrimagnet II) as the temperature is lowered down to 2K. The magnetic moments of the Ho atoms at the (4d) and (6g) sites with magnitudes of nearly 7.4 and 6.3 mB at 2K, respectively, are inclined approximately at 70 deg to the c-axis.