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The potential of chemical bonding to design crystallization and vitrification kinetics

Author

Listed:
  • Christoph Persch

    (RWTH Aachen University)

  • Maximilian J. Müller

    (RWTH Aachen University)

  • Aakash Yadav

    (RWTH Aachen University)

  • Julian Pries

    (RWTH Aachen University)

  • Natalie Honné

    (RWTH Aachen University)

  • Peter Kerres

    (RWTH Aachen University)

  • Shuai Wei

    (RWTH Aachen University
    Aarhus University)

  • Hajime Tanaka

    (University of Tokyo
    University of Tokyo)

  • Paolo Fantini

    (Micron Technology Inc.)

  • Enrico Varesi

    (Micron Technology Inc.)

  • Fabio Pellizzer

    (Micron Technology Inc.)

  • Matthias Wuttig

    (RWTH Aachen University
    RWTH Aachen University
    PGI 10 (Green IT), Forschungszentrum Jülich GmbH)

Abstract

Controlling a state of material between its crystalline and glassy phase has fostered many real-world applications. Nevertheless, design rules for crystallization and vitrification kinetics still lack predictive power. Here, we identify stoichiometry trends for these processes in phase change materials, i.e. along the GeTe-GeSe, GeTe-SnTe, and GeTe-Sb2Te3 pseudo-binary lines employing a pump-probe laser setup and calorimetry. We discover a clear stoichiometry dependence of crystallization speed along a line connecting regions characterized by two fundamental bonding types, metallic and covalent bonding. Increasing covalency slows down crystallization by six orders of magnitude and promotes vitrification. The stoichiometry dependence is correlated with material properties, such as the optical properties of the crystalline phase and a bond indicator, the number of electrons shared between adjacent atoms. A quantum-chemical map explains these trends and provides a blueprint to design crystallization kinetics.

Suggested Citation

  • Christoph Persch & Maximilian J. Müller & Aakash Yadav & Julian Pries & Natalie Honné & Peter Kerres & Shuai Wei & Hajime Tanaka & Paolo Fantini & Enrico Varesi & Fabio Pellizzer & Matthias Wuttig, 2021. "The potential of chemical bonding to design crystallization and vitrification kinetics," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-25258-3
    DOI: 10.1038/s41467-021-25258-3
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    Cited by:

    1. Tomoki Fujita & Yuhan Chen & Yoshio Kono & Seiya Takahashi & Hidetaka Kasai & Davide Campi & Marco Bernasconi & Koji Ohara & Hirokatsu Yumoto & Takahisa Koyama & Hiroshi Yamazaki & Yasunori Senba & Ha, 2023. "Pressure-induced reversal of Peierls-like distortions elicits the polyamorphic transition in GeTe and GeSe," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    2. Yudong Cheng & Qun Yang & Jiangjing Wang & Theodoros Dimitriadis & Mathias Schumacher & Huiru Zhang & Maximilian J. Müller & Narges Amini & Fan Yang & Alexander Schoekel & Julian Pries & Riccardo Mazz, 2022. "Highly tunable β-relaxation enables the tailoring of crystallization in phase-change materials," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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