E. Zukowski et al., TEMPERATURE-DEPENDENCE OF THE MAGNETIC COMPTON PROFILE OF FERRIMAGNETIC HOFE2, Journal of the Physical Society of Japan, 63(10), 1994, pp. 3838-3849
Circularly polarised synchrotron radiation has been used to measure th
e spin-dependent magnetic Compton profile of the ferromagnet HoFe2 at
six temperatures from 10 K to 300 K. The magnetic Compton profiles hav
e been analysed using appropriate free atom Compton profiles and a fre
e electron Compton profile which has allowed the determination of the
individual spin moments on the Ho and Fe sites and the diffuse moment;
the last two are, to a first approximation, temperature independent.
The Ho moment, which is antiferromagnetically coupled to them, reduces
by a factor of two across the temperature range, leading to a spin co
mpensation temperature of 210 +/- 10 K. The experiments were performed
with 45.9 keV photons at the KEK ARNE-1 station of the Accumulation R
ing.