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Theoretical Model of Crystal Nucleation in PCM Nano-Glasses

Published online by Cambridge University Press:  01 February 2011

V. G. Karpov ,
Y. A. Kryukov ,
M. Mitra  and
I. V. Karpov
V. G. Karpov
Affiliation:
Physics and Astronomy, University of Toledo, Toledo, OH, 43606
Y. A. Kryukov
Affiliation:
[email protected], University of Toledo, Physics and Astronomy, Toledo, OH, 43606, United States
M. Mitra
Affiliation:
[email protected], University of Toledo, Physics and Astronomy, Toledo, OH, 43606, United States
I. V. Karpov
Affiliation:
[email protected], Intel Corporation, Santa Clara, CA, 95054, United States
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Abstract

We propose a theoretical analysis of crystal nucleation in disordered nano-glass structure of chalcogenide phase change memory. Statistical fluctuations of microscopic structure parameters translate into statistical distribution of nucleation times determining the transition from the highly resistive (glassy) to the low resistive (crystalline) state. This distribution is shown to be log-normal with the peak time exponentially dependent on field strength, temperature, cell area and material parameters.

Keywords

nucleation & growthmemorythin film
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1072: Symposium G – Phase-Change Materials for Reconfigurable Electronics and Memory Applications , 2008 , 1072-G01-07
Copyright
Copyright © Materials Research Society 2008

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References

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