Magnetic splitting of valence states in ferromagnetic and antiferromagnetic lanthanide metals
The magnetic splitting of Delta(2) valence states in the heavy lanthanide metals Gd, Tb, Dy, and Ho was studied in epitaxial films by angle-resolved photoemission, revealing an essentially Stoner-like temperature dependence in all cases. It scales linearly with the 4f spin moment, even in the case of the helical antiferromagnet Ho. Such a behavior can be explained by a substantial localization of the corresponding wave function in the c direction. The helical magnetic structure was confirmed for the thin Ho films by in situ resonant magnetic x-ray diffraction.
Schussler-Langeheine
C
Institut fur Experimentalphysik, Freie Universitat Berlin, Arnimallee 14, D-14195 Berlin-Dahlem, Germany.
Weschke
E
Mazumdar
C
Meier
R
Grigoriev
AY
Kaindl
G
Sutter
C
Abernathy
D
Grubel
G
Richter
M