Media design and write techniques for creating neutral polarity conversion regions

The invention discloses media design and write techniques for creating neutral polarity conversion regions. A thermally assisted magnetic recording (HAMR) device is configured to write neutral polarity regions on a magnetic medium during the same pass of a recording head, wherein other regions are written with positive polarity and negative polarity. Various disclosed write techniques may facilitate creating a "zero state" (substantially net zero polarity) transition region between each pair of data bits of opposite polarity and/or may facilitate encoding three different logic states (e.g., 1, 0, and-1) on a medium. 本申请公开了用于创建中性极性转换区域的介质设计和写入技术。一种热辅助磁记录(HAMR)设备被配置为在记录磁头的同一次通过期间在磁介质上写入中性极性区，其中其他区被写入正极性和负极性。各种公开的写入技术可以便于在相反极性的每对数据位之间创建"零状态"(基本上净零极性)转换区域和/或可有助于在介质上编码三个不同的逻辑状态(例如，1、0和-1)。