Indications of a ferromagnetic quantum critical point in

WF Holmes-Hewett, K Van Koughnet, JD Miller… - Scientific Reports, 2023 - nature.com
We investigate the previously observed superconductivity in ferromagnetic SmN in the
context of the breakdown of order between two magnetic phases. Nitrogen vacancy doped …

Probing the defect states of LuN1− δ: An experimental and computational study

S Devese, K Van Koughnet, RG Buckley, F Natali… - AIP Advances, 2022 - pubs.aip.org
We report electrical transport and optical spectroscopy measurements on LuN thin films
variously doped with nitrogen vacancies along with the computed band structures of …

Tuneable magnetic behavior, electronic structure, and nitrogen vacancy formation in

O Porat, E Joshy, JD Miller, S Granville… - Physical Review …, 2024 - APS
The rare-earth nitrides are the only series of intrinsic ferromagnetic semiconductors where
the interplay of spin and unquenched orbital angular momentum provides access to a range …

Electronic structure of nitrogen-vacancy doped SmN: Intermediate valence and transport in a ferromagnetic semiconductor

WF Holmes-Hewett - Physical Review B, 2021 - APS
SmN is an intrinsic ferromagnetic semiconductor with electrical transport properties that
have been of recent experimental interest. Its conductivity is largely dictated by the …

[HTML][HTML] Unlocking perpendicular magnetic anisotropy with Gd substitution in SmN

JD Miller, HJ Trodahl, M Al Khalfioui, S Vézian… - Applied Physics …, 2023 - pubs.aip.org
A unique bulk-origin perpendicular magnetic anisotropy (PMA) is reported in thin films of the
cubic ferromagnetic semiconductor Gd x Sm 1− x N. PMA behavior is clearly signaled by in …

Optical spectroscopy of SmN: Locating the conduction band

WF Holmes-Hewett, RG Buckley, BJ Ruck, F Natali… - Physical Review B, 2019 - APS
The rare-earth nitride ferromagnetic semiconductors owe their varying magnetic properties
to the progressive filling of the 4 f shell across the series. Recent electrical transport …

Epitaxial growth of (100)-oriented SmN directly on (100) Si substrates

JF McNulty, K Temst, MJ Van Bael, A Vantomme… - Physical Review …, 2021 - APS
We demonstrate growth of epitaxial (100) SmN thin films directly on (100) Si surfaces. By
using physical vapor deposition of Sm metal in an N 2 atmosphere we show that careful …

[HTML][HTML] Indications of a ferromagnetic quantum critical point in [... formula...]

WF Holmes-Hewett, K Van Koughnet, JD Miller… - Scientific …, 2023 - ncbi.nlm.nih.gov
We investigate the previously observed superconductivity in ferromagnetic SmN in the
context of the breakdown of order between two magnetic phases. Nitrogen vacancy doped …

[HTML][HTML] SmN and DyN: Effect of the nitrogen to rare earth flux ratio on the structural, transport, and magnetic properties

A Shaib, WF Holmes-Hewett, J Chan, PP Murmu… - AIP Advances, 2021 - pubs.aip.org
We report on the effect of the nitrogen to rare earth (N 2/RE) flux ratio on the structural,
transport, and magnetic properties of samarium nitride (SmN) and dysprosium nitride (DyN) …

Epitaxial HoN thin films: An investigation of the structural, electronic, and magnetic properties

VM Pereira, A Meléndez-Sans, CF Chang, CY Kuo… - Physical Review …, 2023 - APS
We report our study on the growth of HoN thin films on MgO (100) and LaAlO 3 (100)
substrates. By using molecular beam epitaxy, we thermally evaporate holmium in an …