Open Access Te Herenga Waka-Victoria University of Wellington
Browse
Anton_Natali_APL23.pdf (2.35 MB)

Growth of epitaxial (100)-oriented rare-earth nitrides on (100)LaAlO3

Download (2.35 MB)
journal contribution
posted on 2024-03-27, 02:04 authored by EM Anton, Edward TrewickEdward Trewick, William Holmes-HewettWilliam Holmes-Hewett, JR Chan, JF McNulty, T Butler, Benjamin RuckBenjamin Ruck, Franck NataliFranck Natali
Epitaxial growth of (100)-oriented rare-earth nitrides (RENs) SmN, GdN, and DyN on (100)LaAlO3 (LAO) substrates is demonstrated using molecular beam epitaxy. RHEED and ϕ-scans confirm that the cubic RENs grow 45° rotated with respect to the pseudocubic (100)-surface of LAO, which leads to lattice mismatches between −5.8% and −8.7% for the selected RENs. Those lattice mismatches, despite being significant, are smaller than in previously reported epitaxial (100)RENs, with the exception of growth on (100)YSZ (yttria stabilized zirconia), which however causes the formation of an interface oxide layer. The SmN RHEED pattern shows intense streaks, indicating a high quality, flat surface, and the rocking curves are among the narrowest reported for (100)RENs. In contrast to growth on Si, the epitaxial RENs readily form over a wide range of substrate temperatures, without the need of special substrate treatment or intermediate layers. This robust, high quality growth paired with their clear magnetic switching behavior makes epitaxial RENs grown on LAO ideal candidates for future spintronic devices.

History

Preferred citation

Anton, E. M., Trewick, E., Holmes-Hewett, W. F., Chan, J. R., McNulty, J. F., Butler, T., Ruck, B. J. & Natali, F. (2023). Growth of epitaxial (100)-oriented rare-earth nitrides on (100)LaAlO3. Applied Physics Letters, 123(26), 262401-. https://doi.org/10.1063/5.0186522

Journal title

Applied Physics Letters

Volume

123

Issue

26

Publication date

2023-12-25

Pagination

262401

Publisher

AIP Publishing

Publication status

Published

Online publication date

2023-12-26

ISSN

0003-6951

eISSN

1077-3118

Language

en

Usage metrics

    Journal articles

    Exports

    RefWorks
    BibTeX
    Ref. manager
    Endnote
    DataCite
    NLM
    DC