GdN/SmN superlattices; influence of a Zeeman/exchange conflict

Autor: Franck Natali, James McNulty, W. F. Holmes-Hewett, F. Bramley, Y. Choi, B. J. Ruck, Daniel Haskel, H. J. Trodahl, E.-M. Anton
Rok vydání: 2021
Předmět:
Zdroj: AIP Advances, Vol 11, Iss 1, Pp 015348-015348-5 (2021)
ISSN: 2158-3226
Popis: GdN and SmN are two of the lanthanide nitrides, most of which are intrinsic ferromagnetic semiconductors. Superlattices comprising the pair offer a unique opportunity to investigate heterojunctions that feature simultaneous conductivity and magnetic interface influences. Here we report an investigation of these influences, using magnetisation and X-ray magnetic circular dichroism for magnetic effects, and magnetoresistance and Hall effect studies of their electrical conductance. Magnetic data show clear signatures of a conflicting Zeeman vs. interfacial exchange and the magnetic disruption that results, while resistivity and Hall measurements show conduction in both GdN and SmN.
Databáze: OpenAIRE