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Patent Application
App. No. 12/361,762

Multiferroic Storage Medium

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Patent No.
US None
App. No.
12/361,762
Abstract

A data storage medium that includes a multiferroic thin film and ferromagnetic storage domains formed in the multiferroic thin film. The multiferroic thin film may be formed of at least one of BiFeO 3 , or any other ferroelectric and antiferromagnetic material. The ferromagnetic storage domains may be formed in the multiferroic thin film by an ion implantation process. A data storage system that incorporates the data storage medium is also provided.

Claims (28)

1 . A data storage medium, comprising:

a multiferroic thin film; and

ferromagnetic storage domains formed in the multiferroic thin film.

2 . The data storage medium of claim 1 , wherein the multiferroic thin film is BiFeO 3 .

3 . The data storage medium of claim 1 , wherein the multiferroic thin film is ferroelectric.

4 . The data storage medium of claim 1 , wherein the multiferroic thin film is antiferromagnetic.

5 . The data storage medium of claim 1 , wherein the ferromagnetic storage domains are formed in the multiferroic thin film by ion implantation.

6 . The data storage medium of claim 1 , wherein the ferromagnetic storage domains are formed of at least one of Fe, Co, Ni, and Mn.

7 . The data storage medium of claim 1 configured as a bit patterned storage medium.

8 . A data storage system, comprising:

a recording head;

a data storage medium adjacent to the recording head, the data storage medium comprising:

a multiferroic thin film; and

ferromagnetic storage domains formed in the multiferroic thin film.

9 . The data storage system of claim 8 , wherein the multiferroic thin film is BiFeO 3 .

10 . The data storage system of claim 8 , wherein the multiferroic thin film is ferroelectric.

11 . The data storage system of claim 8 , wherein the multiferroic thin film is antiferromagnetic.

12 . The data storage system of claim 8 , wherein the ferromagnetic storage domains are formed in the multiferroic thin film by ion implantation.

13 . The data storage system of claim 8 , wherein the ferromagnetic storage domains are formed of at least one of Fe, Co, Ni, and Mn.

14 . The data storage system of claim 8 configured and arranged as a bit patterned storage medium.

15 . The data storage system of claim 8 , wherein the recording head includes a magnetic field write component.

16 . The data storage system of claim 8 , wherein the recording head includes an electric field write component.

17 . The data storage system of claim 8 , wherein the recording head includes a magnetic field write component and an electric field write component.

18 . A bit patterned multiferroic storage medium, comprising:

a layer of multiferroic material; and

ferromagnetic storage domains formed in the layer of multiferroic material.

19 . The bit patterned multiferroic storage medium of claim 18 , wherein the multiferroic material is BiFeO 3 .

20 . The bit patterned multiferroic storage medium of claim 18 , wherein the ferromagnetic storage domains are formed in the layer of multiferroic material by ion implantation.

Assignments (4)
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENT RIGHTS Recorded Jul 19, 2013
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT AND SECOND PRIORITY REPRESENTATIVE
To: SEAGATE TECHNOLOGY LLC; EVAULT INC. (F/K/A I365 INC.); SEAGATE TECHNOLOGY INTERNATIONAL; SEAGATE TECHNOLOGY US HOLDINGS, INC.
Reel/Frame 030833/0001 →
RELEASE Recorded Jan 19, 2011
From: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
To: SEAGATE TECHNOLOGY HDD HOLDINGS; MAXTOR CORPORATION; SEAGATE TECHNOLOGY LLC; SEAGATE TECHNOLOGY INTERNATIONAL
Reel/Frame 025662/0001 →
SECURITY AGREEMENT Recorded May 15, 2009
From: MAXTOR CORPORATION; SEAGATE TECHNOLOGY LLC; SEAGATE TECHNOLOGY INTERNATIONAL
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT AND FIRST PRIORITY REPRESENTATIVE; WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT AND SECOND PRIORITY REPRESENTATIVE
Reel/Frame 022757/0017 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 29, 2009
From: ZAVALICHE, FLORIN; ZHAO, TONG; PITCHER, PHILIP GEORGE; SEIGLER, MICHAEL ALLEN
To: SEAGATE TECHNOLOGY LLC
Reel/Frame 022172/0934 →