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| 001 | 1020988 | ||
| 005 | 20240226075325.0 | ||
| 037 | _ | _ | |a FZJ-2024-00448 |
| 041 | _ | _ | |a English |
| 100 | 1 | _ | |a Bihlmayer, Gustav |0 P:(DE-Juel1)130545 |b 0 |e Corresponding author |u fzj |
| 111 | 2 | _ | |a Frühjahrstagung der DPG (SKM) |c Dresden |d 2023-03-27 - 2023-03-31 |w Germany |
| 245 | _ | _ | |a Conical spin-spirals at a ferromagnet’s surface: a theoretical analysis |
| 260 | _ | _ | |c 2023 |
| 336 | 7 | _ | |a Conference Paper |0 33 |2 EndNote |
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| 520 | _ | _ | |a The properties of surface layers of a magnetic material can differ substantially from those of the bulk material. A prominent example is the Dzyaloshinskii-Moriya interaction (DMI), resulting from inversion-symmetry breaking at the surface, but also the magnetic anisotropy and the exchange interactions are locally modified. Gd(0001) is here a well-investigated model surface but despite its sensitivity of exchange interactions, experimental data indicated that it behaves as homogeneous Heisenberg system [1]. Recent observations of spin-spirals at the surface of epitaxial Gd(0001) with spin-polarized scanning tunneling microscopy let us re-investigate this system. Density functional theory (DFT) calculations show that not only a sizable DMI can be found at the Gd(0001) surface but also the exchange interactions are modified to drive the system locally into a conical spin-spiral state. Since the magnetic anisotropy and the exchange interactions with the ferromagnetic bulk material disfavor non-collinear magnetic states, only slight modifications of the exchange interactions make these spirals visible. We explore the phase diagram numerically and with the help of atomistic spin-dynamics simulations.[1] C. S. Arnold and D. P. Pappas, Phys. Rev. Lett. 85, 5202 (2000) |
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| 700 | 1 | _ | |a Härtl, Patrik |0 P:(DE-HGF)0 |b 1 |
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| 700 | 1 | _ | |a Blügel, Stefan |0 P:(DE-Juel1)130548 |b 4 |u fzj |
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