Room temperature ferromagnetic behavior of GaN nanoceramics

It is shown that the GaN nanoceramics fabricated by low-temperature high-pressure technique exhibit ferromagnetic behavior. The measurements reveal magnetization of increased with sintering pressure to 8 GPa applied in fabrication process nanoceramics. suggested magnetostriction mechanism responsible for observed increase ferromagnetism nanoceramic measured at 2 K has decreased nonlinearly orders magnitude, reaching a minimum 4 GPa. was demonstrates hysteresis