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| Hauptseite > Publikationsdatenbank > Topological magnon insulators in two-dimensional van der Waals ferromagnets CrSiTe3 and CrGeTe3 : Toward intrinsic gap-tunability > print |
| Hauptseite > Publikationsdatenbank > Topological magnon insulators in two-dimensional van der Waals ferromagnets CrSiTe3 and CrGeTe3 : Toward intrinsic gap-tunability > print |
| 001 | 894929 | ||
| 005 | 20220930130326.0 | ||
| 024 | 7 | _ | |a 10.1126/sciadv.abi7532 |2 doi |
| 024 | 7 | _ | |a 2128/28679 |2 Handle |
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| 100 | 1 | _ | |a Zhu, Fengfeng |0 P:(DE-Juel1)174027 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Topological magnon insulators in two-dimensional van der Waals ferromagnets CrSiTe3 and CrGeTe3 : Toward intrinsic gap-tunability |
| 260 | _ | _ | |a Washington, DC [u.a.] |c 2021 |b Assoc. |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a The bosonic analogs of topological insulators have been proposed in numerous theoretical works, but their experimental realization is still very rare, especially for spin systems. Recently, two-dimensional (2D) honeycomb van der Waals ferromagnets have emerged as a new platform for topological spin excitations. Here, via a comprehensive inelastic neutron scattering study and theoretical analysis of the spin-wave excitations, we report the realization of topological magnon insulators in CrXTe3 (X = Si, Ge) compounds. The nontrivial nature and intrinsic tunability of the gap opening at the magnon band-crossing Dirac points are confirmed, while the emergence of the corresponding in-gap topological edge states is demonstrated theoretically. The realization of topological magnon insulators with intrinsic gap-unability in this class of remarkable 2D materials will undoubtedly lead to new and fascinating technological applications in the domain of magnonics and topological spintronics. |
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| 773 | _ | _ | |a 10.1126/sciadv.abi7532 |g Vol. 7, no. 37 |0 PERI:(DE-600)2810933-8 |n 37 |p eabi7532 |t Science advances |v 7 |y 2021 |x 2375-2548 |
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