The impact of number of repeats N on the interlayer exchange in $$[\text {Fe/MgO}]_{N} $$ [ Fe/MgO ] N (001) superlattices
Abstract The strength of the interlayer exchange coupling in [Fe/MgO] $$_N$$ N (001) superlattices with 2 ≤ N ≤ 10 depends on the number of bilayer repeats (N). The exchange coupling is antiferromagnetic for all the investigated thicknesses while being nine times larger in a sample with N = 4 as com...
Guardado en:
| Autores principales: | , , , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/0bd102b83cdf43fe8d56fa8e03bb3d2d |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:0bd102b83cdf43fe8d56fa8e03bb3d2d |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:0bd102b83cdf43fe8d56fa8e03bb3d2d2021-12-02T13:57:05ZThe impact of number of repeats N on the interlayer exchange in $$[\text {Fe/MgO}]_{N} $$ [ Fe/MgO ] N (001) superlattices10.1038/s41598-021-81441-y2045-2322https://doaj.org/article/0bd102b83cdf43fe8d56fa8e03bb3d2d2021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81441-yhttps://doaj.org/toc/2045-2322Abstract The strength of the interlayer exchange coupling in [Fe/MgO] $$_N$$ N (001) superlattices with 2 ≤ N ≤ 10 depends on the number of bilayer repeats (N). The exchange coupling is antiferromagnetic for all the investigated thicknesses while being nine times larger in a sample with N = 4 as compared to N = 2. The sequence of the magnetic switching in two of the samples (N = 4, N = 8) is determined using polarized neutron reflectometry. The outermost layers are shown to respond at the lowest fields, consistent with having the weakest interlayer exchange coupling. The results are consistent with the existence of quantum well states defined by the thickness of the Fe and the MgO layers as well as the number of repeats (N) in [Fe/MgO] $$ _{N}$$ N (001)superlattices.Tobias WarnatzFridrik MagnusNanny StrandqvistSarah SanzHasan AliKlaus LeiferAlexei VorobievBjörgvin HjörvarssonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-7 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
Medicine R Science Q |
| spellingShingle |
Medicine R Science Q Tobias Warnatz Fridrik Magnus Nanny Strandqvist Sarah Sanz Hasan Ali Klaus Leifer Alexei Vorobiev Björgvin Hjörvarsson The impact of number of repeats N on the interlayer exchange in $$[\text {Fe/MgO}]_{N} $$ [ Fe/MgO ] N (001) superlattices |
| description |
Abstract The strength of the interlayer exchange coupling in [Fe/MgO] $$_N$$ N (001) superlattices with 2 ≤ N ≤ 10 depends on the number of bilayer repeats (N). The exchange coupling is antiferromagnetic for all the investigated thicknesses while being nine times larger in a sample with N = 4 as compared to N = 2. The sequence of the magnetic switching in two of the samples (N = 4, N = 8) is determined using polarized neutron reflectometry. The outermost layers are shown to respond at the lowest fields, consistent with having the weakest interlayer exchange coupling. The results are consistent with the existence of quantum well states defined by the thickness of the Fe and the MgO layers as well as the number of repeats (N) in [Fe/MgO] $$ _{N}$$ N (001)superlattices. |
| format |
article |
| author |
Tobias Warnatz Fridrik Magnus Nanny Strandqvist Sarah Sanz Hasan Ali Klaus Leifer Alexei Vorobiev Björgvin Hjörvarsson |
| author_facet |
Tobias Warnatz Fridrik Magnus Nanny Strandqvist Sarah Sanz Hasan Ali Klaus Leifer Alexei Vorobiev Björgvin Hjörvarsson |
| author_sort |
Tobias Warnatz |
| title |
The impact of number of repeats N on the interlayer exchange in $$[\text {Fe/MgO}]_{N} $$ [ Fe/MgO ] N (001) superlattices |
| title_short |
The impact of number of repeats N on the interlayer exchange in $$[\text {Fe/MgO}]_{N} $$ [ Fe/MgO ] N (001) superlattices |
| title_full |
The impact of number of repeats N on the interlayer exchange in $$[\text {Fe/MgO}]_{N} $$ [ Fe/MgO ] N (001) superlattices |
| title_fullStr |
The impact of number of repeats N on the interlayer exchange in $$[\text {Fe/MgO}]_{N} $$ [ Fe/MgO ] N (001) superlattices |
| title_full_unstemmed |
The impact of number of repeats N on the interlayer exchange in $$[\text {Fe/MgO}]_{N} $$ [ Fe/MgO ] N (001) superlattices |
| title_sort |
impact of number of repeats n on the interlayer exchange in $$[\text {fe/mgo}]_{n} $$ [ fe/mgo ] n (001) superlattices |
| publisher |
Nature Portfolio |
| publishDate |
2021 |
| url |
https://doaj.org/article/0bd102b83cdf43fe8d56fa8e03bb3d2d |
| work_keys_str_mv |
AT tobiaswarnatz theimpactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT fridrikmagnus theimpactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT nannystrandqvist theimpactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT sarahsanz theimpactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT hasanali theimpactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT klausleifer theimpactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT alexeivorobiev theimpactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT bjorgvinhjorvarsson theimpactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT tobiaswarnatz impactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT fridrikmagnus impactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT nannystrandqvist impactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT sarahsanz impactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT hasanali impactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT klausleifer impactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT alexeivorobiev impactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices AT bjorgvinhjorvarsson impactofnumberofrepeatsnontheinterlayerexchangeintextfemgonfemgon001superlattices |
| _version_ |
1718392302441857024 |