High-temperature superconductor YBa2Cu3Oy: electrical properties and structural instability. - Rabadanova, A. E.; Gadzhimagomedov, S. Kh.; Palchaev, D. K.; Rabadanov, M. Kh.; Emirov, R. M.; Efimchenko, V. S.; Murlieva, Zh. Kh.; Faradzhev, Sh. P.; Alikhanov, N. M.-R. (Applied Physics A: Materials Science & Processing, 2025)