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Evidence of liquid–liquid transition in glass-forming La50Al35Ni15 melt above liquidus temperature

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  • Wei Xu

    (School of Materials Science and Engineering, and State Key Laboratory of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology
    Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology)

  • Magdalena T. Sandor

    (University of North Carolina)

  • Yao Yu

    (School of Materials Science and Engineering, and State Key Laboratory of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology
    Wuhan National High Magnetic Field Center, Huazhong University of Science and Technology)

  • Hai-Bo Ke

    (Institute of Physics, Chinese Academy of Sciences)

  • Hua-Ping Zhang

    (Renmin University of China)

  • Mao-Zhi Li

    (Renmin University of China)

  • Wei-Hua Wang

    (Institute of Physics, Chinese Academy of Sciences)

  • Lin Liu

    (School of Materials Science and Engineering, and State Key Laboratory of Material Processing and Die and Mould Technology, Huazhong University of Science and Technology)

  • Yue Wu

    (University of North Carolina)

Abstract

Liquid–liquid transition, a phase transition of one liquid phase to another with the same composition, provides a key opportunity for investigating the relationship between liquid structures and dynamics. Here we report experimental evidences of a liquid–liquid transition in glass-forming La50Al35Ni15 melt above its liquidus temperature by 27Al nuclear magnetic resonance including the temperature dependence of cage volume fluctuations and atomic diffusion. The observed dependence of the incubation time on the degree of undercooling is consistent with a first-order phase transition. Simulation results indicate that such transition is accompanied by the change of bond-orientational order without noticeable change in density. The temperature dependence of atomic diffusion revealed by simulations is also in agreement with experiments. These observations indicate the need of two-order parameters in describing phase transitions of liquids.

Suggested Citation

  • Wei Xu & Magdalena T. Sandor & Yao Yu & Hai-Bo Ke & Hua-Ping Zhang & Mao-Zhi Li & Wei-Hua Wang & Lin Liu & Yue Wu, 2015. "Evidence of liquid–liquid transition in glass-forming La50Al35Ni15 melt above liquidus temperature," Nature Communications, Nature, vol. 6(1), pages 1-9, November.
    • Handle: RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms8696
    DOI: 10.1038/ncomms8696
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    Cited by:

    1. Zaneta Wojnarowska & Shinian Cheng & Beibei Yao & Malgorzata Swadzba-Kwasny & Shannon McLaughlin & Anne McGrogan & Yoan Delavoux & Marian Paluch, 2022. "Pressure-induced liquid-liquid transition in a family of ionic materials," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Robert F. Tournier & Michael I. Ojovan, 2022. "Multiple Melting Temperatures in Glass-Forming Melts," Sustainability, MDPI, vol. 14(4), pages 1-18, February.

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