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| Hauptseite > Publikationsdatenbank > The interplay of structure and spin-orbit strength in the magnetism of metal-benzene sandwiches: from single molecules to infinite wires > print |
| Hauptseite > Publikationsdatenbank > The interplay of structure and spin-orbit strength in the magnetism of metal-benzene sandwiches: from single molecules to infinite wires > print |
| 001 | 58930 | ||
| 005 | 20180211173527.0 | ||
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| 024 | 7 | _ | |2 DOI |a 10.1088/0957-4484/18/49/495402 |
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| 084 | _ | _ | |2 WoS |a Nanoscience & Nanotechnology |
| 084 | _ | _ | |2 WoS |a Materials Science, Multidisciplinary |
| 084 | _ | _ | |2 WoS |a Physics, Applied |
| 100 | 1 | _ | |a Mokrousov, Y. |b 0 |0 P:(DE-HGF)0 |
| 245 | _ | _ | |a The interplay of structure and spin-orbit strength in the magnetism of metal-benzene sandwiches: from single molecules to infinite wires |
| 260 | _ | _ | |a Bristol |b IOP Publ. |c 2007 |
| 300 | _ | _ | |a 495402 |
| 336 | 7 | _ | |a Journal Article |0 PUB:(DE-HGF)16 |2 PUB:(DE-HGF) |
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| 440 | _ | 0 | |a Nanotechnology |x 0957-4484 |0 4475 |v 18 |
| 500 | _ | _ | |a Record converted from VDB: 12.11.2012 |
| 520 | _ | _ | |a Based on first-principles density functional theory calculations, we explore the electronic and magnetic properties of experimentally producible sandwiches and infinite wires made of repeating benzene molecules and transition-metal atoms of V, Nb, and Ta. We describe the bonding mechanism in the molecules and in particular concentrate on the origin of magnetism in these structures. We find that all the considered systems have sizable magnetic moments and ferromagnetic spin ordering, with the single exception of the V(3)Bz(4) molecule. By including the spin-orbit coupling into our calculations we determine the easy and hard axes of the magnetic moment, the strength of the uniaxial magnetic anisotropy energy (MAE), relevant for the thermal stability of magnetic orientation, and the change of the electronic structure with respect to the direction of the magnetic moment, important for spin-transport properties. While for the V-based compounds the values of the MAE are only of the order of 0.05-0.5 meV per metal atom, increasing the spin-orbit strength by substituting V with heavier Nb and Ta allows one to achieve an increase in anisotropy values by one to two orders of magnitude. The rigid stability of magnetism in these compounds together with the strong ferromagnetic ordering makes them attractive candidates for spin-polarized transport applications. For a Nb-benzene infinite wire the occurrence of ballistic anisotropic magnetoresistance is demonstrated. |
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| 773 | _ | _ | |a 10.1088/0957-4484/18/49/495402 |g Vol. 18, p. 495402 |p 495402 |q 18<495402 |0 PERI:(DE-600)1362365-5 |t Nanotechnology |v 18 |y 2007 |x 0957-4484 |
| 856 | 7 | _ | |u http://dx.doi.org/10.1088/0957-4484/18/49/495402 |
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