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http://dx.doi.org/10.25673/116573
Titel: | Ruddlesden-Popper oxyfluorides La2Ni1-xCuxO3F2 (0 ≤ x ≤ 1) : impact of the Ni/Cu ratio on the thermal stability and magnetic properties |
Autor(en): | Jacobs, Jonas![]() Wang, Hai-Chen ![]() Marques, Miguel ![]() Ebbinghaus, Stefan ![]() |
Erscheinungsdatum: | 2024 |
Art: | Artikel |
Sprache: | Englisch |
Zusammenfassung: | Ruddlesden–Popper oxyfluorides of the substitution series La2Ni1–xCuxO3F2 (0 ≤ x ≤ 1) were obtained by topochemical fluorination with polyvinylidene fluoride (PVDF) of oxide precursors La2Ni1–xCuxO4. The thermal stability and the temperature-dependent unit cell evolution of the oxyfluorides were investigated by high-temperature XRD measurements. The oxyfluoride with x = 0.6 shows the highest decomposition temperature of θdec ∼ 520 °C, which is significantly higher than the ones found for the end members La2NiO3F2 (x = 0) θdec ∼ 460 °C and La2CuO3F2 (x = 1) θdec ∼ 430 °C. The magnetic properties of all La2Ni1–xCuxO3F2 oxyfluorides were characterized by field- and temperature-dependent measurements as well as DFT calculations of the magnetic ground state. An antiferromagnetic ordering was derived for all substitution levels. For the Néel temperature (TN), a nonlinear dependence on the copper content was found, and comparably high values of TN in the region of 200–250 K were observed in the broad composition range of 0.3 ≤ x ≤ 0.8. |
URI: | https://opendata.uni-halle.de//handle/1981185920/118531 http://dx.doi.org/10.25673/116573 |
Open-Access: | ![]() |
Nutzungslizenz: | ![]() |
Journal Titel: | Inorganic chemistry |
Verlag: | American Chemical Society |
Verlagsort: | Washington, DC |
Band: | 63 |
Heft: | 24 |
Originalveröffentlichung: | 10.1021/acs.inorgchem.4c01330 |
Seitenanfang: | 11317 |
Seitenende: | 11324 |
Enthalten in den Sammlungen: | Open Access Publikationen der MLU |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
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jacobs-et-al-2024-ruddlesden-popper-oxyfluorides-la2ni1-xcuxo3f2-(0-x-1)-impact-of-the-ni-cu-ratio-on-the-thermal.pdf | 2.87 MB | Adobe PDF | ![]() Öffnen/Anzeigen |