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

Anton, E. -M.; Holmes-Hewett, W. F.; McNulty, J. F.; Natali, F.; Bramley, F.; Choi, Y.; Haskel, D.; Ruck, B. J.; Trodahl, H. J.

doi:10.1063/9.0000099

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

Journal Article · Thu Jan 28 00:00:00 EST 2021 · AIP Advances

DOI:https://doi.org/10.1063/9.0000099· OSTI ID:1777145

^[1]; Holmes-Hewett, W. F. ^[1]; McNulty, J. F. ^[1];

^[1]; Bramley, F. ^[1];

^[2]; Haskel, D. ^[2];

^[1];

^[1]

Victoria Univ. of Wellington (New Zealand). The MacDiarmid Inst. for Advanced Materials and Nanotechnology
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)

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. In this work, 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.

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Research Organization:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Organization:: Royal Society of New Zealand; USDOE Office of Science (SC)

Grant/Contract Number:: AC02-06CH11357; 13-VUW1309

OSTI ID:: 1777145

Alternate ID(s):: OSTI ID: 1970561

Journal Information:: AIP Advances, Vol. 11, Issue 1; ISSN 2158-3226

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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36 MATERIALS SCIENCE
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magnetic anisotropy
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superlattices
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Title: GdN/SmN superlattices; influence of a Zeeman/exchange conflict

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