Multilevel data storage memory using deterministic polarization control

Daesu Lee, Sang Mo Yang, Tae Heon Kim, Byung Chul Jeon, Yong Su Kim, Jong Gul Yoon, Ho Nyung Lee, Seung Hyup Baek, Chang Beom Eom, Tae Won Noh

Research output: Contribution to journalArticlepeer-review

138 Scopus citations

Abstract

Multilevel non-volatile memory for high-density date storage is achieved by using the deterministic control of ferroelectric polarization. In a real ferroelectric thin-film system, eight stable and reproducible polarization states are realized (i.e., 3-bit data storage) by adjusting the displacement current. This approach can be used to triple or quadruple the memory density, even at existing feature scales.

Original languageEnglish
Pages (from-to)402-406
Number of pages5
JournalAdvanced Materials
Volume24
Issue number3
DOIs
StatePublished - Jan 17 2012

Keywords

  • ferroelectric random access memory
  • ferroelectrics
  • multilevel systems
  • non-volatile memory

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