Asymmetric writer for shingled magnetic recording

1. A system, comprising:

a writer for shingled recording,

wherein the writer includes a write pole having a trailing edge and first and second side edges extending from the trailing edge,

wherein the writer further includes a shield extending along and about parallel to at least an entire length of the trailing edge,

wherein an edge of the shield facing the first side edge of the write pole includes a first section extending along and about parallel to the trailing edge of the write pole, a second section extending from the first section in a direction along and about parallel to at least a portion of the first side edge, and a third section extending from the second section in a direction away from the write pole,

wherein an intersection of the second and third sections of the edge of the shield facing the write pole is positioned above a plane extending along a leading edge of the write pole, the leading edge of the write pole being positioned below the trailing edge of the write pole wherein the shield does not extend along the second side edge of the write pole.

2. The system of claim 1 , wherein a trailing gap between the shield and the trailing edge has a portion with a same thickness as a portion of a side gap between the shield and the first side edge.

3. The system of claim 1 , wherein an angle formed between the first side edge and the trailing edge along an air bearing surface side of the writer is different than an angle formed between the second side edge and the trailing edge along the air bearing surface side of the writer.

4. The system of claim 1 , wherein the second section extends from the first section in a direction along and parallel to the at least a portion of the first side edge.

5. The system of claim 1 , wherein a length of the trailing edge along which the shield extends about parallel thereto is between about one-half a track pitch of shingled data tracks written by the writer and two times the track pitch.

6. The system of claim 1 , further comprising:

magnetic media including magnetic domain tracks of interest;

at least one head for reading from and writing to the magnetic media, each head having:

a sensor;

the writer;

a slider for supporting the head; and

a control unit coupled to the head for controlling operation of the head.

7. The system of claim 1 , further comprising:

ferroelectric media including ferroelectric domain tracks of interest;

at least one head for reading from and writing to the ferrorelectric media, each head having:

a sensor;

the writer;

a slider for supporting the head; and

a control unit coupled to the head for controlling operation of the head.

8. A system, comprising:

a writer for shingled recording,

wherein the writer includes a write pole having a trailing edge and first and second side edges extending from the trailing edge,

wherein the writer further includes a shield extending along and about parallel to at least an entire length of the trailing edge,

the shield also extending along and about parallel to at least a portion of the first side edge,

wherein the shield does not extend along the second side edge,

wherein an edge of the shield facing the write pole includes a first section extending along and about parallel to the trailing edge of the write pole, a second section extending from the first section in a direction along and about parallel to the at least a portion of the first side edge, and a third section extending from the second section in a direction away from the write pole,

wherein an intersection of the second and third sections of the edge of the shield facing the write pole is positioned above a plane extending along a leading edge of the write pole, the leading edge of the write pole being positioned below the trailing edge of the write pole.

9. The system of claim 8 , wherein an angle formed between the first side edge and the trailing edge along an air bearing surface side of the writer is different than an angle formed between the second side edge and the trailing edge along the air bearing surface side of the writer.

10. The system of claim 8 , wherein the portion of the trailing edge along which the shield extends about parallel thereto is between about one-half a track pitch of shingled data tracks written by the writer and about two times the track pitch.

11. The system of claim 8 , wherein a gap between the trailing edge and the shield is smaller than a gap between the first side edge and the shield.

12. The system of claim 8 , further comprising:

magnetic media including magnetic domain tracks of interest;

at least one head for reading from and writing to the magnetic media, each head having:

a sensor;

the writer; and

a slider for supporting the head.

13. A system, comprising:

a writer for shingled recording,

wherein the writer includes a write pole having a trailing edge and first and second side edges extending from the trailing edge,

wherein the writer further includes a shield extending along and about parallel to at least an entire length of the trailing edge,

the shield also extending along and parallel to at least a portion of the first side edge,

wherein the shield does not extend along the second side edge,

wherein an angle formed between the first side edge and the trailing edge along an air bearing surface side of the writer is different than an angle formed between the second side edge and the trailing edge along the air bearing surface side of the writer,

wherein a trailing gap is defined between the shield and the trailing edge,

wherein a side gap is defined between the shield and the first side edge,

wherein a section of the trailing gap along a portion of the shield oriented about parallel to the trailing edge has a same thickness as a section of the side gap along a portion of the shield oriented parallel to the first side edge,

wherein an edge of the shield facing the write pole includes a first section extending along and about parallel to the trailing edge of the write pole, a second section extending from the first section in a direction along and parallel to the at least a portion of the first side edge, and a third section extending from the second section in a direction away from the write pole,

wherein an intersection of the second and third sections of the edge of the shield facing the write pole is positioned laterally to the first side edge of the write pole at a position between planes extending along a leading edge and the trailing edge of the write pole.

14. The system of claim 13 , wherein the angle formed between the first side edge and the trailing edge is less than 90 degrees, wherein the angle formed between the second side edge and the trailing edge is greater than the angle formed between the first side edge and the trailing edge.

15. The system of claim 13 , further comprising:

magnetic media including magnetic domain tracks of interest;

at least one head for reading from and writing to the magnetic media, each head having:

a sensor;

the writer;

a slider for supporting the head; and

a control unit coupled to the head for controlling operation of the head.