Home > Publications database > Reversible switching of the environment-protected quantum spin Hall insulator bismuthene at the graphene/SiC interface > print |
001 | 1043689 | ||
005 | 20250912110149.0 | ||
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100 | 1 | _ | |a Tilgner, Niclas |0 0009-0001-7592-7674 |b 0 |e First author |
245 | _ | _ | |a Reversible switching of the environment-protected quantum spin Hall insulator bismuthene at the graphene/SiC interface |
260 | _ | _ | |a [London] |c 2025 |b Springer Nature |
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520 | _ | _ | |a Quantum spin Hall insulators have been extensively studied both theoretically and experimentally because they exhibit robust helical edge states driven by spin-orbit coupling and offer the potential for applications in spintronics through dissipationless spin transport. Here we show that a single layer of elemental Bi, formed by intercalation of an epitaxial graphene buffer layer on SiC(0001), is a promising candidate for a quantum spin Hall insulator. This layer can be reversibly switched between an electronically inactive precursor state and a bismuthene state, the latter exhibiting the predicted band structure of a true two-dimensional bismuthene layer. Switching is accomplished by hydrogenation (dehydrogenation) of the sample. A partial passivation (activation) of Si dangling bonds causes a lateral shift of Bi atoms involving a change of the adsorption site. In the bismuthene state, the Bi honeycomb layer is a prospective quantum spin Hall insulator, inherently protected by the graphene sheet above and the H-passivated substrate below. |
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536 | _ | _ | |a SFB 1083 A12 - Struktur und Anregungen von hetero-epitaktischen Schichtsystemen aus schwach wechselwirkenden 2D-Materialien und molekularen Schichten (A12) (385975694) |0 G:(GEPRIS)385975694 |c 385975694 |x 2 |
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700 | 1 | _ | |a Wolff, Susanne |0 0009-0003-6480-9319 |b 1 |
700 | 1 | _ | |a Soubatch, Serguei |0 P:(DE-Juel1)128790 |b 2 |
700 | 1 | _ | |a Lee, Tien-Lin |0 0000-0001-6935-5983 |b 3 |
700 | 1 | _ | |a Peña Unigarro, Andres David |0 0009-0002-3283-5283 |b 4 |
700 | 1 | _ | |a Gemming, Sibylle |0 0000-0003-0455-1945 |b 5 |
700 | 1 | _ | |a Tautz, F. Stefan |0 P:(DE-Juel1)128791 |b 6 |
700 | 1 | _ | |a Seyller, Thomas |0 0000-0002-4953-2142 |b 7 |
700 | 1 | _ | |a Kumpf, Christian |0 P:(DE-Juel1)128774 |b 8 |e Corresponding author |
700 | 1 | _ | |a Göhler, Fabian |0 0000-0003-2299-2445 |b 9 |e Corresponding author |
700 | 1 | _ | |a Schädlich, Philip |0 0000-0002-0075-2291 |b 10 |e Corresponding author |
773 | _ | _ | |a 10.1038/s41467-025-60440-x |g Vol. 16, no. 1, p. 6171 |0 PERI:(DE-600)2553671-0 |n 1 |p 6171 |t Nature Communications |v 16 |y 2025 |x 2041-1723 |
856 | 4 | _ | |u https://juser.fz-juelich.de/record/1043689/files/s41467-025-60440-x.pdf |y OpenAccess |
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