Microwave-assisted magnetic recording (MAMR) writehead and system
Microwave-assisted magnetic recording (MAMR) writehead and system
复制标题
微波辅助磁记录 (MAMR) 写入头和系统
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
M. Sugiyama
中科院分区：
文献类型：
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作者：
K. Etoh;M. Hatatani;K. Hosomi;Yohji Maruyama;K. Sugiura;M. Sugiyama
一种微波辅助磁记录（MAMR）写头，包括具有主磁极、磁轭磁极和后磁屏蔽的磁轭结构。该主极包括在面向板表面的一侧具有尖端的写入极、具有面向板表面的一侧的端部被复位的Nebenpol、以及在写入极和Nebenpol之间的电绝缘层。自旋力矩振荡器（STO）位于后屏蔽和Schreibpolspitze之间面向板表面的一侧。绝缘层确保Ruckkehrpol和写入极之间的STO电流不会短路。写入极和Nebenpol之间的绝缘层扩大了Ruckkehrpol和写入极之间的接合区域，从而减小了轭结构的磁阻。
A microwave assisted magnetic recording (MAMR-) write head includes a yoke structure having a main pole, a Flussruckkehrpol and a rear magnetic shield. The main pole comprises a write pole having a tip at the side facing the plate surface, a Nebenpol with an end of the side facing the plate surface is reset, and an electrically insulating layer between the write pole and the Nebenpol. The spin torque oscillator (STO) at the side facing the plate surface between the rear shield and the Schreibpolspitze. The insulating layer ensures that the STO current between the Ruckkehrpol and the write pole is not short-circuited. The insulating layer between the write pole and the Nebenpol enlarges the joining area between the Ruckkehrpol and the write pole, whereby the magnetic reluctance of the yoke structure is reduced.