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Sub-Picosecond Processes of Ferroelectric Domain Switching from Field and Temperature Experiments

  1. An Quan Jiang1,*,
  2. Hyun Ju Lee2,
  3. Cheol Seong Hwang2,*,
  4. James F. Scott3,*

Article first published online: 8 NOV 2011

DOI: 10.1002/adfm.201101521

Issue

Advanced Functional Materials

Advanced Functional Materials

Volume 22, Issue 1, pages 192–199, January 11, 2012

Additional Information

How to Cite

Jiang, A. Q., Lee, H. J., Hwang, C. S. and Scott, J. F. (2012), Sub-Picosecond Processes of Ferroelectric Domain Switching from Field and Temperature Experiments. Adv. Funct. Mater., 22: 192–199. doi: 10.1002/adfm.201101521

Author Information

  1. 1

    State Key Laboratory of ASIC & System, Department of Microelectronics, Fudan University, Shanghai, 200433, China

  2. 2

    Department of Materials Science and Engineering and Inter-university, Semiconductor Research Center, Seoul National University, Seoul, 151-744, S. Korea

  3. 3

    Department of Physics, University of Cambridge, Cambridge CB3 0HE, United Kingdom

*State Key Laboratory of ASIC & System, Department of Microelectronics, Fudan University, Shanghai, 200433, China

Publication History

  1. Issue published online: 2 JAN 2012
  2. Article first published online: 8 NOV 2011
  3. Manuscript Received: 6 JUL 2011

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Keywords:

  • stimuli-responsive materials;
  • ferroelectrics;
  • thin films;
  • switching currents;
  • nucleation times

Abstract

After calculations of various domain-switching current transients under the pulse from electrical circuit parameters, the field dependence of domain-switching speeds is accurately estimated over five orders of magnitude in a wide temperature range of 5.4–280 K from the height of domain-switching current in Pb(Zr0.4Ti0.6)O3 thin films. These estimations are extended following Merz's equation [W. J. Merz, Phys. Rev.1954, 95, 690] and an ultimate domain-switching current density of 1.4 × 108 A cm−1 is extracted at the highest field of 0.20 MV cm−1. From classical domain-nucleation models with thermal fluctuations, an ultimate (asymptotic high-field) nucleation time of 0.47 ps is derived when the domain sideways motion is kink-nucleation-rate limited.

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