160 citations · 857 across the 22 of their papers we have counts for
12 papers · 1 filter
In-situ monitoring of room temperature reactions of lanthanides with nitrogen and hydrogen at low pressures
Jay R. Chan, H. Joe Trodahl, Denis Lefebvre +2
The dissociative chemisorption of molecular nitrogen on clean lanthanide surfaces at ambient temperature and low pressure is explored. In-situ conductance measurements track the co…
On the ferromagnetic ground state of SmN
J. F. McNulty, B. J. Ruck, H. J. Trodahl
SmN is a ferromagnetic semiconductor with the unusual property of an orbital-dominant magnetic moment that is largely cancelled by an antiparallel spin contribution, resulting in a…
Twisted phase of the orbital-dominant ferromagnet SmN in a GdN/SmN heterostructure
J. F. McNulty, E. -M. Anton, B. J. Ruck +7
The strong spin-orbit interaction in the rare-earth elements ensures that even within a ferromagnetic state there is a substantial orbital contribution to the ferromagnetic moment,…
Highly resistive epitaxial Mg-doped GdN thin films
C. -M. Lee, H. Warring, S. Vézian +7
We report the growth by molecular beam epitaxy of highly resistive GdN, using intentional doping with magnesium. Mg-doped GdN layers with resistivities of 1000 Ω.cm and carrier con…
Europium nitride: A novel diluted magnetic semiconductor
Do Le Binh, B. J. Ruck, F. Natali +7
Europium nitride is semiconducting and contains non-magnetic \3+, but sub-stoichiometric EuN has Eu in a mix of 2+ and 3+ charge states. We show that at \2+ ~concentrations near 15…
Electric field and photo-excited control of the carrier concentration in GdN
Harry Warring, B. J. Ruck, H. J. Trodahl +1
We present both electric-field and photo-excited control of the carrier concentration in GdN. There is no evidence in the results of a carrier-mediated contribution to the Gd-Gd ex…