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Communication

Multilevel Data Storage Memory Using Deterministic Polarization Control

  1. Daesu Lee1,
  2. Sang Mo Yang1,
  3. Tae Heon Kim1,
  4. Byung Chul Jeon1,
  5. Yong Su Kim1,
  6. Jong-Gul Yoon2,
  7. Ho Nyung Lee3,
  8. Seung Hyup Baek4,
  9. Chang Beom Eom4,
  10. Tae Won Noh1,*

Article first published online: 12 DEC 2011

DOI: 10.1002/adma.201103679

Issue

Advanced Materials

Advanced Materials

Volume 24, Issue 3, pages 402–406, January 17, 2012

Additional Information

How to Cite

Lee, D., Yang, S. M., Kim, T. H., Jeon, B. C., Kim, Y. S., Yoon, J.-G., Lee, H. N., Baek, S. H., Eom, C. B. and Noh, T. W. (2012), Multilevel Data Storage Memory Using Deterministic Polarization Control. Adv. Mater., 24: 402–406. doi: 10.1002/adma.201103679

Author Information

  1. 1

    ReCFI, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea

  2. 2

    Department of Physics, University of Suwon, Suwon, Gyunggi-do 445-743, Korea

  3. 3

    Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA

  4. 4

    Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA

*ReCFI, Department of Physics and Astronomy, Seoul National University, Seoul 151-747, Korea.

Publication History

  1. Issue published online: 10 JAN 2012
  2. Article first published online: 12 DEC 2011
  3. Manuscript Revised: 4 NOV 2011
  4. Manuscript Received: 26 SEP 2011

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Keywords:

  • ferroelectric random access memory;
  • ferroelectrics;
  • multilevel systems;
  • non-volatile memory
Thumbnail image of graphical 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.

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