Unusual ferroelectric and magnetic phases in multiferroic 2H-BaMnO${}_3$ ceramics

Stanislav Kamba, Dmitry Nuzhnyy, Maxim Savinov +16

The structural phase transition in hexagonal BaMnO${}_3$ occurring at $T_c$=130 K was studied in ceramic samples using electron and X-ray diffraction, second harmonic generation as w…