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Crystal structure and hyperfine interactions of delafossite (CuFeO 2 ) synthesized hydrothermally
Author(s) -
Siedliska Karolina,
Pikula Tomasz,
Surowiec Zbigniew,
Panek Rafał,
Idczak Rafał,
Tran Vinh Hung,
Jartych Elżbieta
Publication year - 2021
Publication title -
acta crystallographica section b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.604
H-Index - 33
ISSN - 2052-5206
DOI - 10.1107/s2052520621005072
Subject(s) - delafossite , hyperfine structure , paramagnetism , crystallography , materials science , magnetization , crystal (programming language) , ferrite (magnet) , mössbauer spectroscopy , copper , single crystal , chemistry , condensed matter physics , oxide , magnetic field , metallurgy , atomic physics , physics , quantum mechanics , composite material , computer science , programming language
The powder specimen of CuFeO 2 delafossite was synthesized by a hydrothermal method at 453 K. X‐ray diffraction studies confirmed that the obtained pure delafossite phase was a mixture of the 3 R and 2 H polytypes, predominantly the former. Mössbauer spectral analysis revealed the paramagnetic state of the copper ferrite at room temperature. Below 12 K the spectra had complicated shapes of Zeeman sextets. Changes in the character of the hyperfine interactions did not correspond to the data reported for the single‐crystal CuFeO 2 . Magnetization measurements revealed that magnetic transition occurred at Néel temperature ( T N ) = 12.5 K.
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