Novel Ternary AgIICoIIIF5 Fluoride: Synthesis, Structure and Magnetic Characteristics
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arXiv
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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866914771105742848 |
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| author | Jezierski, Daniel Mazej, Zoran Grochala, Wojciech |
| author_facet | Jezierski, Daniel Mazej, Zoran Grochala, Wojciech |
| contents | We present a new compound in the silver cobalt fluoride system, featuring paramagnetic silver (d9) and high-spin cobalt (d6), synthesized by solid state method in an autoclave under F2 overpressure. Based on powder X ray diffraction, we determined that AgIICoIIIF5 crystallizes in a monoclinic system with space group C2/c. The calculated fundamental band gap falls in the visible range of the electromagnetic spectrum, and the compound has the character of charge-transfer insulator. AgCoF5 is a ferrimagnet with one predominant superexchange magnetic interaction constant between mixed spin cations (Ag ... Co) of minus 62 meV (SCAN result). Magnetometric measurements conducted on a powdered sample allowed the identification of a transition at 128 K, which could indicate magnetic ordering. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_17399 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Novel Ternary AgIICoIIIF5 Fluoride: Synthesis, Structure and Magnetic Characteristics Jezierski, Daniel Mazej, Zoran Grochala, Wojciech Materials Science We present a new compound in the silver cobalt fluoride system, featuring paramagnetic silver (d9) and high-spin cobalt (d6), synthesized by solid state method in an autoclave under F2 overpressure. Based on powder X ray diffraction, we determined that AgIICoIIIF5 crystallizes in a monoclinic system with space group C2/c. The calculated fundamental band gap falls in the visible range of the electromagnetic spectrum, and the compound has the character of charge-transfer insulator. AgCoF5 is a ferrimagnet with one predominant superexchange magnetic interaction constant between mixed spin cations (Ag ... Co) of minus 62 meV (SCAN result). Magnetometric measurements conducted on a powdered sample allowed the identification of a transition at 128 K, which could indicate magnetic ordering. |
| title | Novel Ternary AgIICoIIIF5 Fluoride: Synthesis, Structure and Magnetic Characteristics |
| topic | Materials Science |
| url | https://arxiv.org/abs/2402.17399 |