D. Hurova and O. Dolbin, IV International Conference “Condensed Matter and Low-Temperature Physics 2024” (CM<P 2024), Low Temp. Phys. 51, 3–4, (2025) [Fiz. Nyzk. Temp. 51, 5-6, (2025)] DOI: https://doi.org/10.1063/10.0034552.