Memory cells, capacitive memory structures and methods thereof

According to various aspects, there is provided a memory cell comprising: a first electrode; a second electrode; and a memory layer disposed between the first electrode and the second electrode, wherein the memory layer includes a first memory portion having a first oxygen vacancy concentration and a second memory portion having a second oxygen vacancy concentration different from the first oxygen vacancy concentration. 根据各个方面，提供了一种存储器单元，该存储器单元包括：第一电极；第二电极；以及设置在第一电极与第二电极之间的存储器层，其中存储器层包括具有第一氧空位浓度的第一存储器部分和具有不同于第一氧空位浓度的第二氧空位浓度的第二存储器部分。