Zobrazeno 1 - 10
of 217
pro vyhledávání: '"H. J. Trodahl"'
Autor:
W. F. Holmes-Hewett, K. Van Koughnet, J. D. Miller, E. X. M. Trewick, B. J. Ruck, H. J. Trodahl, R. G. Buckley
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract We investigate the previously observed superconductivity in ferromagnetic SmN in the context of the breakdown of order between two magnetic phases. Nitrogen vacancy doped SmN $$_{1-\delta }$$ 1 - δ is a semiconductor which lies in the inter
Externí odkaz:
https://doaj.org/article/33b45284da8149e581a76f02ab613d9a
Autor:
W. F. Holmes-Hewett, R. G. Buckley, T. J. Butler, C. Pot, K. Van Koughnet, B. J. Ruck, H. J. Trodahl
Publikováno v:
AIP Advances, Vol 12, Iss 7, Pp 075120-075120-4 (2022)
Far infrared measurements of the absorption into the IR-active TO(Γ) mode are reported for a selection of the rare-earth mononitrides. The frequencies harden as anticipated by ≈15% as the lattice constant shrinks by ≈6% from SmN to LuN, though t
Externí odkaz:
https://doaj.org/article/c71cf52769f445f2b7da21fbcd3b5531
Publikováno v:
AIP Advances, Vol 11, Iss 1, Pp 015125-015125-4 (2021)
We report on the effect of the nitrogen to rare earth (N2/RE) flux ratio on the structural, transport, and magnetic properties of samarium nitride (SmN) and dysprosium nitride (DyN) thin films. Both materials display a reduced lattice constant when t
Externí odkaz:
https://doaj.org/article/d6f035bd9e834f76a397b1493e1e5bb3
Autor:
E.-M. Anton, W. F. Holmes-Hewett, J. F. McNulty, F. Natali, F. Bramley, Y. Choi, D. Haskel, B. J. Ruck, H. J. Trodahl
Publikováno v:
AIP Advances, Vol 11, Iss 1, Pp 015348-015348-5 (2021)
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
Externí odkaz:
https://doaj.org/article/d3e6f0f0fb38477aac210d82def21c12
Autor:
J. D. Miller, J. F. McNulty, B. J. Ruck, M. Al Khalfioui, S. Vézian, M. Suzuki, H. Osawa, N. Kawamura, H. J. Trodahl
Publikováno v:
Physical Review B. 106
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ba3fb7e48d2725496f354ee35f5d6bd
https://doi.org/10.1103/physrevb.106.174432
https://doi.org/10.1103/physrevb.106.174432
Publikováno v:
Applied Physics Letters. 122:092402
A unique bulk-origin perpendicular magnetic anisotropy (PMA) is reported in thin films of the cubic ferromagnetic semiconductor Gd xSm1− xN. PMA behavior is clearly signaled by in-vs-out-of-plane magnetic hysteresis showing out-of-plane remanence o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dde79dfbaa3bbd442b76301ab0810ef7
https://doi.org/10.1063/5.0131472
https://doi.org/10.1063/5.0131472
Autor:
Simon Brown, A. L. Garden, M. Le Ster, H. J. Trodahl, D. Lefebvre, A. Shaib, Jay R. Chan, Franck Natali, S. G. Lambie, B. J. Ruck, Felicia Ullstad
Publikováno v:
Physical Review Materials. 4
A combined experimental and computational study is reported on a hitherto unrecognised single lanthanide catalyst for the breaking of molecular nitrogen and formation of ammonia at ambient temperature and low pressure. We combine in situ electrical c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::08a7265f842c843f876bf9b7e9ac3959
https://doi.org/10.1103/physrevmaterials.4.115003
https://doi.org/10.1103/physrevmaterials.4.115003
Autor:
EM Haines, James B. Metson, Ocean Mercier, H. J. Trodahl, Y. Tomioka, A. Bittar, R. G. Buckley
Optical reflectance spectra were measured in the temperature range 70–295 K, and in the energy range of 0.006–6 eV for single crystals of (formula presented) before and after annealing. The conductivity spectrum of the unannealed (formula present
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a422998f5e00f2edabeff8f309197a59
https://doi.org/10.26686/wgtn.12981074.v1
https://doi.org/10.26686/wgtn.12981074.v1
Publikováno v:
Applied Physics Letters. 119:172406
The remarkable series of intrinsic ferromagnetic semiconductors within the rare-earth nitrides presents both fundamental challenges and technological opportunities with even more offered by alloys among them. Here, we report an initial exploration of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90b1da9b36b8ca569e15c6e6a0192774
https://doi.org/10.1063/5.0066144
https://doi.org/10.1063/5.0066144
We report the growth of films of the intrinsic ferromagnetic semiconductor NdN, and an investigation of their optical and transport properties. There is clear evidence of a strong anomalous Hall effect as expected from a 4f conduction channel, suppor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39b18ad7737fd56d5d9252995c77d18d
http://arxiv.org/abs/1910.02163
http://arxiv.org/abs/1910.02163