Mutual Orientation of Electric Intracrystalline and Magnetic Fields in Iron Borate Single Crystals

Autor:	Nikita Snegirev, Ekaterina Smirnova, M.B. Strugatsky, S. Yagupov, Igor S. Lyubutin, S. S. Starchikov, Olga A. Alekseeva, Airat Kiiamov
Rok vydání:	2022
Předmět:	Crystal Materials science Condensed matter physics law Lattice (order) Atmospheric temperature range Spectroscopy Hyperfine structure Synchrotron Electric field gradient Electronic Optical and Magnetic Materials law.invention Magnetic field
Zdroj:	IEEE Magnetics Letters. 13:1-4
ISSN:	1949-3088 1949-307X
Popis:	X-ray structural analysis, Mssbauer spectroscopy, and ab-initio calculations were used to study the structural properties and refine the orientation of intracrystalline fields in FeBO3 crystals in the region of the magnetic phase transition. It was found that in the temperature range of 293 - 403 K, the trigonal lattice parameters increase monotonically. Analysis of the electron density distribution maps did not show visible local disordering over the entire investigated temperature range. It was found that iron borate has an axially symmetric electric field gradient (EFG), whose main axis is directed along [001]. This orientation is maintained above and below the Neel point. In magnetically ordered state of the crystal, the main axis of the EFG is orthogonal to the direction of the hyperfine magnetic field at iron nuclei. The results obtained will be used to develop a theoretical model of the formation of hyperfine structure in iron borate, which is important for applications of such crystals in the synchrotron technologies of a new generation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::fc70cd0bea386cfeaa52e99ca27d1f37 https://doi.org/10.1109/lmag.2021.3130853 Zobrazit plný text záznamu