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Colossal positive and negative thermal expansion and thermosalient effect in a pentamorphic organometallic martensite

Author

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  • Manas K. Panda

    (New York University Abu Dhabi)

  • Tomče Runčevski

    (Max Planck Institute for Solid State Research)

  • Subash Chandra Sahoo

    (New York University Abu Dhabi)

  • Alexei A. Belik

    (International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS))

  • Naba K. Nath

    (New York University Abu Dhabi)

  • Robert E. Dinnebier

    (Max Planck Institute for Solid State Research)

  • Panče Naumov

    (New York University Abu Dhabi)

Abstract

The thermosalient effect is an extremely rare propensity of certain crystalline solids for self-actuation by elastic deformation or by a ballistic event. Here we present direct evidence for the driving force behind this impressive crystal motility. Crystals of a prototypical thermosalient material, (phenylazophenyl)palladium hexafluoroacetylacetonate, can switch between five crystal structures (α—ε) that are related by four phase transitions including one thermosalient transition (α↔γ). The mechanical effect is driven by a uniaxial negative expansion that is compensated by unusually large positive axial expansion (260 × 10–6 K–1) with volumetric expansion coefficients (≈250 × 10–6 K–1) that are among the highest values reported in molecular solids thus far. The habit plane advances at ~104 times the rate observed with non-thermosalient transitions. This rapid expansion of the crystal following the phase switching is the driving force for occurrence of the thermosalient effect.

Suggested Citation

  • Manas K. Panda & Tomče Runčevski & Subash Chandra Sahoo & Alexei A. Belik & Naba K. Nath & Robert E. Dinnebier & Panče Naumov, 2014. "Colossal positive and negative thermal expansion and thermosalient effect in a pentamorphic organometallic martensite," Nature Communications, Nature, vol. 5(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5811
    DOI: 10.1038/ncomms5811
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    Cited by:

    1. Durga Prasad Karothu & Rodrigo Ferreira & Ghada Dushaq & Ejaz Ahmed & Luca Catalano & Jad Mahmoud Halabi & Zainab Alhaddad & Ibrahim Tahir & Liang Li & Sharmarke Mohamed & Mahmoud Rasras & Panče Naumo, 2022. "Exceptionally high work density of a ferroelectric dynamic organic crystal around room temperature," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Yuki Hagiwara & Shodai Hasebe & Hiroki Fujisawa & Junko Morikawa & Toru Asahi & Hideko Koshima, 2023. "Photothermally induced natural vibration for versatile and high-speed actuation of crystals," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    3. Daniel William Davies & Bumjoon Seo & Sang Kyu Park & Stephen B. Shiring & Hyunjoong Chung & Prapti Kafle & Dafei Yuan & Joseph W. Strzalka & Ralph Weber & Xiaozhang Zhu & Brett M. Savoie & Ying Diao, 2023. "Unraveling two distinct polymorph transition mechanisms in one n-type single crystal for dynamic electronics," Nature Communications, Nature, vol. 14(1), pages 1-14, December.

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