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<p>Compression-induced phase transitions in supercooled liquid and glassy confined germanene are studied via molecular dynamics (MD) simulations. Glassy state is obtained by cooling from the melt to 300&#xa0;K under zero pressure. Then, some selected atomic configurations at temperatures above and below <InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11051_2025_6269_Article_IEq1.gif" Format="GIF" Height="19" Rendition="HTML" Resolution="72" Type="Linedraw" Width="19" /> </InlineMediaObject> <EquationSource Format="TEX">\({T}_{g}\)</EquationSource> <EquationSource Format="MATHML"><math> <msub> <mi>T</mi> <mi>g</mi> </msub> </math></EquationSource> </InlineEquation> are taken as initial supercooled liquid or glassy two-dimensional (2D) models for the isothermal compression from low-density to high-density states in order to study compression-induced phase transitions in the models. We find formation of the triangular-hexa (<i>trh</i>) germanene as the most stable state in the high-density region. Moreover, we find the compression-induced amorphization of supercooled liquid and amorphous-amorphous phase transitions in the system.</p>

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Compression-induced phase transitions in supercooled liquid and glassy confined germanene

  • 期刊论文

  • 发表日期：

    2025年3月4日

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  • Vo Van Hoang,
  • Nguyen Hoang Giang,
  • Vladimir Bubanja

摘要

Compression-induced phase transitions in supercooled liquid and glassy confined germanene are studied via molecular dynamics (MD) simulations. Glassy state is obtained by cooling from the melt to 300 K under zero pressure. Then, some selected atomic configurations at temperatures above and below \({T}_{g}\) T g are taken as initial supercooled liquid or glassy two-dimensional (2D) models for the isothermal compression from low-density to high-density states in order to study compression-induced phase transitions in the models. We find formation of the triangular-hexa (trh) germanene as the most stable state in the high-density region. Moreover, we find the compression-induced amorphization of supercooled liquid and amorphous-amorphous phase transitions in the system.