Data read/write device
AssigneeKabushiki Kaisha Toshiba
InventorsKoichi Kubo, Takahiro Hirai, Shinya Aoki, Robin Carter, Chikayoshi Kamata
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Abstract
A data read/write device according to an example of the present invention includes a recording layer, and means for applying a voltage to the recording layer, generating a resistance change in the recording layer, and recording data. The recording layer is composed of a composite compound having at least two types of cation elements, at least one type of the cation element is a transition element having a “d” orbit in which electrons have been incompletely filled, and the shortest distance between the adjacent cation elements is 0.32 nm or less.
Claims9
A data read/write device comprising:
- a recording layer;
- and
- means for applying a voltage to the recording layer, generating a resistance change in the recording layer, and recording data,
- wherein the recording layer is composed of:
- AxMyX4
- where A is at least one element selected from the group consisting of Na, K, Rb, Be, Mg, Ca, Sr, Ba, Al, Ga, Mn, Fe, Co, Ni, Cu, Zn, Si, P, S, Se, Ge, Ag, Au, Cd, Sn, Sb, Pt, Pd, Hg, Tl, Pb, and Bi;
- M is at least one element selected from the group consisting of Al, Ga, Ti, Ge, Sn, V, Cr, Mn, Fe, Co, Ni, Nb, Ta, Mo, W, Ru, and Rh;
- and
- A and M are elements that are different from each other, X is at least one element selected from the group consisting of O and N, and molar ratios x and y satisfy 0.1≦x≦2.2, and 1.8≦y≦2, respectively.
Dependencies are inferred from the claim text.