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| Hauptseite > Publikationsdatenbank > High-temperature quantum anomalous Hall regime in a MnBi2Te4/Bi2Te3 superlattice > print |
| Hauptseite > Publikationsdatenbank > High-temperature quantum anomalous Hall regime in a MnBi2Te4/Bi2Te3 superlattice > print |
| 001 | 889312 | ||
| 005 | 20211105141527.0 | ||
| 024 | 7 | _ | |a 10.1038/s41567-020-0998-2 |2 doi |
| 024 | 7 | _ | |a 1745-2473 |2 ISSN |
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| 037 | _ | _ | |a FZJ-2021-00204 |
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| 100 | 1 | _ | |a Deng, Haiming |0 0000-0002-0372-267X |b 0 |
| 245 | _ | _ | |a High-temperature quantum anomalous Hall regime in a MnBi2Te4/Bi2Te3 superlattice |
| 260 | _ | _ | |a Basingstoke |c 2021 |b Nature Publishing Group |
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| 520 | _ | _ | |a The quantum anomalous Hall effect1,2 is a fundamental transport response of a topological insulator in zero magnetic field. Its physical origin is a result of an intrinsically inverted electronic band structure and ferromagnetism3, and its most important manifestation is the dissipationless flow of chiral charge currents at the edges of the system4, a property that has the potential to transform future quantum electronics5,6. Here, we report a Berry-curvature-driven4,7 anomalous Hall regime at temperatures of several Kelvin in the magnetic topological bulk crystals in which Mn ions self-organize into a period-ordered MnBi2Te4/Bi2Te3 superlattice. Robust ferromagnetism of the MnBi2Te4 monolayers opens a surface gap8,9,10, and when the Fermi level is tuned to be within this gap, the anomalous Hall conductance reaches an e2/h quantization plateau, which is a clear indication of chiral transport through the edge states. The quantization in this regime is not obstructed by the bulk conduction channels and therefore should be present in a broad family of topological magnets. |
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| 700 | 1 | _ | |a Chen, Zhiyi |0 P:(DE-HGF)0 |b 1 |
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| 700 | 1 | _ | |a Konczykowski, Marcin |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Sobczak, Kamil |0 0000-0002-9747-8144 |b 4 |
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| 700 | 1 | _ | |a Fedorchenko, Irina V. |0 P:(DE-HGF)0 |b 6 |
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| 700 | 1 | _ | |a Georgescu, Alexandru B. |0 P:(DE-HGF)0 |b 11 |
| 700 | 1 | _ | |a Cano, Jennifer |0 0000-0003-1528-4344 |b 12 |
| 700 | 1 | _ | |a Krusin-Elbaum, Lia |0 0000-0001-9210-4955 |b 13 |e Corresponding author |
| 773 | _ | _ | |a 10.1038/s41567-020-0998-2 |g Vol. 17, no. 1, p. 36 - 42 |0 PERI:(DE-600)2206346-8 |n 1 |p 36 - 42 |t Nature physics |v 17 |y 2021 |x 1745-2481 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/889312/files/2001.10579.pdf |y Published on 2020-08-17. Available in OpenAccess from 2021-02-17. |
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