公开(公告)号：US20120063032A1

公开(公告)日：2012-03-15

申请号：US12879791

申请日：2010-09-10

申请人： Eric Meloche ,  Bin Lu ,  Lixin Jia ,  Jianhua Xue ,  John David Westwood ,  Mark Anthony Gubbins ,  Alexandru Cazacu

发明人： Eric Meloche ,  Bin Lu ,  Lixin Jia ,  Jianhua Xue ,  John David Westwood ,  Mark Anthony Gubbins ,  Alexandru Cazacu

IPC分类号： G11B5/127

CPC分类号： G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315

摘要： Data storage systems having barriers that may reduce erasure flux and increase write-ability are provided. Data storage systems include a writing element. The writing element has a write pole with a flare region. A magnetic flux barrier is located along the write pole flare region. The magnetic flux barrier is illustratively made from an in-plane magnetically anisotropic material that has an easy plane of magnetization. In another embodiment, a data storage system includes a writing element having an air bearing surface and a shield at the air bearing surface. The shield has a magnetic permeability of approximately zero. The shield illustratively includes alternating layers of positive and negative permeabilities. The shield optionally includes a plurality of shields that may include top, bottom, and side shields.

摘要翻译： 提供了具有可能减少擦除通量并增加写入能力的障碍的数据存储系统。 数据存储系统包括写入元件。 写入元件具有带闪光区域的写入极。 磁通势垒位于写磁极耀斑区域。 磁通势垒示意性地由具有易磁化平面的面内磁各向异性材料制成。 在另一个实施例中，数据存储系统包括具有空气轴承表面和在空气支承表面处的屏蔽的书写元件。 屏蔽具有大约零的磁导率。 屏蔽件示例性地包括正和负磁导率的交替层。 屏蔽件可选地包括可以包括顶部，底部和侧部屏蔽件的多个屏蔽件。

公开(公告)号：US08982507B2

公开(公告)日：2015-03-17

申请号：US12879791

申请日：2010-09-10

申请人： Eric Meloche ,  Bin Lu ,  Lixin Jia ,  Jianhua Xue ,  John David Westwood ,  Mark Anthony Gubbins ,  Alexandru Cazacy

发明人： Eric Meloche ,  Bin Lu ,  Lixin Jia ,  Jianhua Xue ,  John David Westwood ,  Mark Anthony Gubbins ,  Alexandru Cazacy

IPC分类号： G11B5/127 ,  G11B5/31

CPC分类号： G11B5/11 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315

摘要： Data storage systems having barriers that may reduce erasure flux and increase write-ability are provided. Data storage systems include a writing element. The writing element has a write pole with a flare region. A magnetic flux barrier is located along the write pole flare region. The magnetic flux barrier is illustratively made from an in-plane magnetically anisotropic material that has an easy plane of magnetization. In another embodiment, a data storage system includes a writing element having an air bearing surface and a shield at the air bearing surface. The shield has a magnetic permeability of approximately zero. The shield illustratively includes alternating layers of positive and negative permeabilities. The shield optionally includes a plurality of shields that may include top, bottom, and side shields.

摘要翻译： 提供了具有可能减少擦除通量并增加写入能力的障碍的数据存储系统。 数据存储系统包括写入元件。 写入元件具有带闪光区域的写入极。 磁通势垒位于写磁极耀斑区域。 磁通势垒示意性地由具有易磁化平面的面内磁各向异性材料制成。 在另一个实施例中，数据存储系统包括具有空气轴承表面和在空气支承表面处的屏蔽的书写元件。 屏蔽具有大约零的磁导率。 屏蔽件示例性地包括正和负磁导率的交替层。 屏蔽件可选地包括可以包括顶部，底部和侧部屏蔽件的多个屏蔽件。

公开(公告)号：US08810964B2

公开(公告)日：2014-08-19

申请号：US13823672

申请日：2010-09-15

申请人： Kaizhong Gao ,  Eric Meloche ,  Jianhua Xue ,  Eric S. Linville ,  Dehua Han ,  Huaqing Yin

发明人： Kaizhong Gao ,  Eric Meloche ,  Jianhua Xue ,  Eric S. Linville ,  Dehua Han ,  Huaqing Yin

IPC分类号： G11B5/127

CPC分类号： G11B5/193 ,  G11B5/1278 ,  G11B5/187 ,  G11B5/315

摘要： A write element including a pole tip shield is disclosed. In embodiments disclosed, for example, the pole tip shield includes side shield portions fabricated of a graded magnetic moment material to form graded side shield portions having a magnetic moment that decreases in the down-track direction along a length of the side shield portions. In another embodiment, the pole tip shield includes side shield portions having a shortened length extending along a partial length of side edges of the pole tip. In illustrated embodiments, the side shield portions are formed of a contoured body having an indented portion forward of the leading edge of the pole tip. The indented portion has a rounded indented surface contour forming a rounded profile for a gap region between a leading edge portion of the pole tip shield forward of the leading edge of the pole tip.

摘要翻译： 公开了一种包括极端屏蔽的写入元件。 在所公开的实施例中，例如，极尖屏蔽包括由渐变磁矩材料制成的侧屏蔽部分，以形成具有沿着侧屏蔽部分的长度在下游方向上减小的磁矩的分级侧屏蔽部分。 在另一个实施例中，极尖屏蔽包括侧面屏蔽部分，其具有沿磁极末端的侧边缘的部分长度延伸的缩短的长度。 在所示的实施例中，侧面屏蔽部分由具有在极尖的前缘前方的凹入部分的成形体形成。 凹入部分具有圆形的缩进表面轮廓，其形成圆顶轮廓，用于在极尖前缘前方的极尖护罩的前缘部分之间的间隙区域。

公开(公告)号：US20140063657A1

公开(公告)日：2014-03-06

申请号：US13823672

申请日：2010-09-15

申请人： Kaizhong Gao ,  Eric Meloche ,  Jianhua Xue ,  Eric S. Linville ,  Dehua Han ,  Huaqing Yin

发明人： Kaizhong Gao ,  Eric Meloche ,  Jianhua Xue ,  Eric S. Linville ,  Dehua Han ,  Huaqing Yin

IPC分类号： G11B5/193 ,  G11B5/187

CPC分类号： G11B5/193 ,  G11B5/1278 ,  G11B5/187 ,  G11B5/315

摘要： A write element including a pole tip shield is disclosed. In embodiments disclosed, for example, the pole tip shield includes side shield portions fabricated of a graded magnetic moment material to form graded side shield portions having a magnetic moment that decreases in the down-track direction along a length of the side shield portions. In another embodiment, the pole tip shield includes side shield portions having a shortened length extending along a partial length of side edges of the pole tip. In illustrated embodiments, the side shield portions are formed of a contoured body having an indented portion forward of the leading edge of the pole tip. The indented portion has a rounded indented surface contour forming a rounded profile for a gap region between a leading edge portion of the pole tip shield forward of the leading edge of the pole tip.

摘要翻译： 公开了一种包括极端屏蔽的写入元件。 在所公开的实施例中，例如，极尖屏蔽包括由渐变磁矩材料制成的侧屏蔽部分，以形成具有沿着侧屏蔽部分的长度在下游方向上减小的磁矩的分级侧屏蔽部分。 在另一个实施例中，极尖屏蔽包括侧面屏蔽部分，其具有沿磁极末端的侧边缘的部分长度延伸的缩短的长度。 在所示的实施例中，侧面屏蔽部分由具有在极尖的前缘前方的凹入部分的成形体形成。 凹入部分具有圆形的缩进表面轮廓，其形成圆顶轮廓，用于在极尖前缘前方的极尖护罩的前缘部分之间的间隙区域。