[9a-N102-1~12] 6.1 Ferroelectric thin films

10:00 AM - 10:15 AM JST(1:00 AM - 1:15 AM UTC)

[9a-N102-5] Study on High-Density Formation of Ferroelectric Nanodomains for Ferroelectric-Based HDD Applications

〇Ippei Suzuki¹, Takayuki Ichihara¹, Jun Ohno¹, Ayaka Shibuya², Ryosuke Kimata², Tomoki Kuroda², Shoichiro Yamaguchi² (1.Western Digital, 2.NGK)

Keywords:

Ferroelectric Recording,HDD

The development of next-generation HDD technologies beyond heat-assisted magnetic recording (HAMR) is urgently required. Ferroelectric materials are expected to enable ultra-high-density recording surpassing magnetic recording, as their polarization and domain wall widths can be confined to the nanoscale, down to only a few lattice constants. In this study, with the development of ferroelectric-media-based HDDs in mind, we have initiated an investigation into the feasibility of ultra-high-density data writing in ferroelectric thin films. Specifically, we examined the effects of electric field application time and electric field waveform on the polarization size.