| Autor: |
Quintero-Castro, Diana Lucia, Nilsen, Gøran J., Meier-Kirchner, Katrin, Benitez-Castro, Angelica, Guenther, Gerrit, Sakakibara, Toshiro, Tokunaga, Masashi, Agu, Chidozie, Mandal, Ipsita, Tsirlin, Alexander A. |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Phys. Rev. Materials 7, 045003 (2023) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevMaterials.7.045003 |
| Popis: |
We have synthesized single-crystal samples of $\beta$-VOSO$_4$ and fully characterized their magnetic properties. Our magnetic susceptibility, high field magnetization and powder inelastic neutron scattering results are in excellent agreement with theoretical expressions for a one-dimensional spin-1/2 Heisenberg chain with an exchange parameter of $3.83(2)$ meV. Ab initio calculations identify the superexchange pathway, revealing that the spin-chain does not run along the expected crystallographic chain $a$ direction but instead between V$^{4+}$O$_{6}$ octahedra that are linked via SO$_{4}$ tetrahedra along the $b$ axis. We do not detect any phase transition to a long-range magnetic order within our experimental conditions, indicating $\beta$-VOSO$_4$ is very close to an ideal one-dimensional magnetic system. |
| Databáze: |
arXiv |
| Externí odkaz: |
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