Anisotropy of exchange interactions in honeycomb ladder compound ReCl5
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arXiv
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| Autori principali: | , , , , , , , , , , |
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| Natura: | Preprint |
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2024
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| _version_ | 1866909377905033216 |
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| author | Vorobyova, A. A. Boltalin, A. I. Tsymbarenko, D. M. Morozov, I. V. Vasilchikova, T. M. Gapontsev, V. V. Lyssenko, K. A. Demishev, S. V. Semeno, A. V. Streltsov, S. V. Volkova, O. S. |
| author_facet | Vorobyova, A. A. Boltalin, A. I. Tsymbarenko, D. M. Morozov, I. V. Vasilchikova, T. M. Gapontsev, V. V. Lyssenko, K. A. Demishev, S. V. Semeno, A. V. Streltsov, S. V. Volkova, O. S. |
| contents | The Re5+(5d2) compounds possess large spin-orbital interaction which urges for large anisotropy, non-collinear structures and other phenomena. Here we present ReCl5 composed by separate Re2Cl10 units formed by edge-shared chlorine octahedra. It demonstrates the formation of antiferromagnetically ordered state in two steps at TN1 = 35.5 K and TN2 = 13.2 K seen in dc-, ac-magnetic susceptibility and in specific heat. At 4K it can be transformed to the state with spontaneous magnetic moment by relatively weak magnetic field m0H = 0.5 T via metamagnetic phase transition. Ab initio calculations give anisotropic ferromagnetic exchange interactions J1 and J2 within and between rhenium pairs forming the zig-zag chains along the a-axis. Pairs of zig-zag chains are coupled by ferromagnetic interaction J3 along the c-axis into magnetic honeycomb ladders. The ladders are coupled by significantly weaker interaction J4. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_02965 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Anisotropy of exchange interactions in honeycomb ladder compound ReCl5 Vorobyova, A. A. Boltalin, A. I. Tsymbarenko, D. M. Morozov, I. V. Vasilchikova, T. M. Gapontsev, V. V. Lyssenko, K. A. Demishev, S. V. Semeno, A. V. Streltsov, S. V. Volkova, O. S. Materials Science The Re5+(5d2) compounds possess large spin-orbital interaction which urges for large anisotropy, non-collinear structures and other phenomena. Here we present ReCl5 composed by separate Re2Cl10 units formed by edge-shared chlorine octahedra. It demonstrates the formation of antiferromagnetically ordered state in two steps at TN1 = 35.5 K and TN2 = 13.2 K seen in dc-, ac-magnetic susceptibility and in specific heat. At 4K it can be transformed to the state with spontaneous magnetic moment by relatively weak magnetic field m0H = 0.5 T via metamagnetic phase transition. Ab initio calculations give anisotropic ferromagnetic exchange interactions J1 and J2 within and between rhenium pairs forming the zig-zag chains along the a-axis. Pairs of zig-zag chains are coupled by ferromagnetic interaction J3 along the c-axis into magnetic honeycomb ladders. The ladders are coupled by significantly weaker interaction J4. |
| title | Anisotropy of exchange interactions in honeycomb ladder compound ReCl5 |
| topic | Materials Science |
| url | https://arxiv.org/abs/2411.02965 |