The glass transition and liquid-gas spinodal boundaries of metastable liquidsS. S. Ashwin1, Gautam I. Menon2 and Srikanth Sastry1
1 Theoretical Sciences Unit, Jawaharlal Nehru Centre for Advanced Scientific Research Jakkur PO, Bangalore 560 064, India
2 The Institute of Mathematical Sciences, CIT Campus Taramani, Chennai 600 113, India
received 15 June 2006; accepted in final form 20 July 2006
published online 9 August 2006
A liquid can exist under conditions of thermodynamic stability or metastability within boundaries defined by the liquid-gas spinodal and the glass transition line. The relationship between these boundaries has been investigated previously using computer simulations, the energy landscape formalism, and simplified model calculations. We calculate these stability boundaries semi-analytically for a model glass-forming liquid, employing accurate liquid-state theory and a first-principles approach to the glass transition. These boundaries intersect at a finite temperature, consistent with previous simulation-based studies.
64.70.Pf - Glass transitions.
64.60.My - Metastable phases.
61.20.Gy - Theory and models of liquid structure.
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