Magnetic tape formed of carbon nanotube arrays containing magnetic nanoparticles
View Patent ↗A magnetic storage medium is formed of magnetic nanoparticles that are encapsulated within carbon nanotubes, which are arranged in a substrate to facilitate the reading and writing of information by a read/write head. The substrate may be flexible or rigid. Information is stored on the magnetic nanoparticles via the read/write head of a storage device. These magnetic nanoparticles are arranged into data tracks to store information through encapsulation within the carbon nanotubes. As carbon nanotubes are bendable, the carbon nanotubes may be arranged on flexible or rigid substrates, such as a polymer tape or disk for flexible media, or a glass substrate for rigid disk. A polymer may assist holding the nano-particle filled carbon-tubes to the substrate.
1. A magnetic tape, comprising:
a substrate; and
a ribbon of magnetic media layered on said substrate, said magnetic media comprising:
a plurality of magnetic nanoparticles contained within a carbon nanotube; and
a plurality of said carbon nanotubes encapsulated in a matrix.
2. The magnetic tape of claim 1 , said ribbon further comprising a shunt layer, said shunt layer comprising:
a plurality of low coercivity magnetic nanoparticles contained within a carbon nanotube; and
a plurality of said carbon nanotubes encapsulated in a matrix.
3. The magnetic tape of claim 2 , said ribbon further comprising a plurality of bucky balls that reduce friction between said ribbon and a read/write head.
4. The magnetic tape of claim 1 , wherein said magnetic nanoparticle is selected from the group consisting of Cobalt (Co), Cobalt-nitride, Cobalt-oxide (Co—O), Cobalt-palladium (Co—Pd), Cobalt-platinum (Co—Pt), Iron (Fe), Iron-Gold (Fe—Au), Iron-Chromium (Fe—Cr), Iron-Nitride (Fe—N), Iron-oxide (Fe3O4), Iron-palladium (Fe—Pt), Fe—Zr—Nb—B, Mn-nitride (Mn—N), Nb—Fe—B, Nd—Fe—B—Nb—Cu, and Nickel (Ni).
5. The magnetic tape of claim 2 , wherein said low coercivity magnetic nanoparticles are selected from the group consisting of Mn—Zn, single crystal Mn—Zn, and Ni—Zn.
6. The magnetic tape of claim 1 , wherein said ribbon comprises a mono-layer of said carbon nanotubes.
7. The magnetic tape of claim 1 , wherein said carbon nanotubes are arranged into a data track.
8. The magnetic tape of claim 1 , wherein said matrix is comprised of High Density Poly Ethylene.
9. The magnetic tape of claim 1 , wherein said substrate is flexible.
10. The magnetic tape of claim 2 , wherein said low coercivity magnetic nanoparticles have low or near zero coercivity.
11. A magnetic tape, comprising:
a layer of magnetic media, comprising:
a plurality of magnetic nanoparticles contained within a carbon nanotube; and
a plurality of said carbon nanotubes encapsulated in a matrix.
12. The magnetic tape of claim 11 , said media further comprising a shunt layer, said shunt layer comprising:
a plurality of low coercivity magnetic nanoparticles contained within a carbon nanotube;
and a plurality of said carbon nanotubes encapsulated in a matrix.
13. The magnetic tape of claim 12 , said media further comprising a plurality of bucky balls that reduce friction between said ribbon and a read/write head.
14. The magnetic tape of claim 11 , wherein said magnetic nanoparticle is selected from the group consisting of Cobalt (Co), Cobalt-nitride, Cobalt-oxide (Co—O), Cobalt-palladium (Co—Pd), Cobalt-platinum (Co—Pt), Iron (Fe), Iron-Gold (Fe—Au), Iron-Chromium. (Fe—Cr), Iron-Nitride (Fe—N), Iron-oxide (Fe3O4), Iron-palladium (Fe—Pt), Fe—Zr—Nb—B, Mn-nitride (Mn—N), Nb—Fe—B, Nd—Fe—B—Nb—Cu, and Nickel (Ni).
15. The magnetic tape of claim 12 , wherein said low coercivity magnetic nanoparticles are selected from the group consisting of Mn—Zn, single crystal Mn—Zn, and Ni—Zn.
16. The magnetic tape of claim 11 , wherein said layer comprises a mono-layer of said carbon nanotubes.
17. The magnetic tape of claim 11 , wherein said carbon nanotubes are arranged into a data tack.
18. The magnetic tape of claim 11 , wherein said matrix is comprised of High Density Poly Ethylene.
19. A magnetic tape, comprising:
a plurality of magnetic nanoparticles contained within a carbon nanotube; and
a plurality of said carbon nanotubes encapsulated in a matrix.