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| 001 | 421193 | ||
| 005 | 20250716153912.0 | ||
| 024 | 7 | _ | |a 10.1021/acsami.8b20625 |2 doi |
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| 082 | _ | _ | |a 600 |
| 100 | 1 | _ | |0 0000-0001-8165-1216 |a Hamed, Mai Hussein |b 0 |
| 245 | _ | _ | |a Tunable Magnetic Phases at $\mathrm{Fe_{3}O_{4}/SrTiO_{3}}$ Oxide Interfaces |
| 260 | _ | _ | |a Washington, DC |b ACS |c 2019 |
| 336 | 7 | _ | |2 DRIVER |a article |
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| 500 | _ | _ | |a © American Chemical Society; Post referee fulltext in progress 2; Embargo 12 months from publication |
| 520 | _ | _ | |a We demonstrate the emergence and control of magnetic phases between magnetite (Fe$_3$O$_4$), a ferrimagnetic halfmetal, and SrTiO$_3$, a transparent nonmagnetic insulator considered the bedrock of oxide-based electronics. The Verwey transition (T$_V$) was detected to persist from bulk-like down to ultrathin Fe$_3$O$_4$ films, decreasing from 117 ± 4 K (38 nm) to 25 ± 4 K (2 nm), respectively. Element-selective electronic and magnetic properties of the ultrathin films and buried interfaces are studied by angle-dependent hard X-ray photoelectron spectroscopy and X-ray magnetic circular dichroism techniques. We observe a reduction of Fe$^{2+}$ ions with decreasing film thickness, accompanied by an increase of Fe$^{3+}$ ions in both tetrahedral and octahedral sites and conclude on the formation of a magnetically active ferrimagnetic 2 u.c. γ-Fe$_2$O$_3$ intralayer. To manipulate the interfacial magnetic phase, a postannealing process causes the controlled reduction of the γ-Fe$_2$O$_3$ that finally leads to stoichiometric and ferrimagnetic Fe$_3$O$_4$/SrTiO$_3$(001) heterointerfaces. |
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| 700 | 1 | _ | |a Hinz, Ronja Anika |b 1 |
| 700 | 1 | _ | |a Lömker, Patrick |b 2 |
| 700 | 1 | _ | |0 P:(DE-H253)PIP1030703 |a Wilhelm, Marek |b 3 |
| 700 | 1 | _ | |0 P:(DE-H253)PIP1007694 |a Gloskovskii, Andrei |b 4 |
| 700 | 1 | _ | |a Bencok, Peter |b 5 |
| 700 | 1 | _ | |a Schmitz-Antoniak, Carolin |b 6 |
| 700 | 1 | _ | |a Elnaggar, Hebatalla |b 7 |
| 700 | 1 | _ | |0 0000-0002-3920-6255 |a Schneider, Claus M. |b 8 |
| 700 | 1 | _ | |0 P:(DE-H253)PIP1013053 |a Mueller, Martina |b 9 |e Corresponding author |
| 773 | _ | _ | |0 PERI:(DE-600)2467494-1 |a 10.1021/acsami.8b20625 |g Vol. 11, no. 7, p. 7576 - 7583 |n 7 |p 7576 - 7583 |t ACS applied materials & interfaces |v 11 |x 1944-8252 |y 2019 |
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