2018/02/12 by M. Białek, Arnaud Magrez, Axel Murk +1 · 1 citation
Materials Science · Engineering · Physics and Astronomy · #Multiferroics and related materials #Magneto-Optical Properties and Applications #Magnetic properties of thin films
paper · pdf · doi:10.1103/physrevb.97.054410
openalex publication_date 2018/02/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
Spin-wave resonances in pelletized powder of bismuth orthoferrite (BiFeO3) were studied in transmission spectroscopy at frequencies of 0.1--0.75 THz and in the temperature range of 300--650 K. A vector network analyzer with frequency extenders was used in conjunction with temperature scans. We extended the experimental coverage of spin-wave resonances in BiFeO3 up to almost the N'eel temperature. We observed that \mathrm\ensuremathΨ1(1) and \mathrm\ensuremathΨ1(2) modes are degenerate around 420 K due to the temperature dependences of the magnetic anisotropy and the Dzyaloshinskii-Moriya interaction.