Two-dimensional (2D) ferroelectric materials with unique structure and extraordinary optoelectrical properties have attr......

The expression of critical size of ferromagnetic microcrystal in an external magnetic field with an intensity of H is de......

电磁继电器铁芯磁性零部件的主要材料是电工纯铁、铁镍合金、低碳钢及其它的软磁材料。矫顽力Hc影响到继电器吸合及释放时间。本文......