Polyamorphic systems: Difference between revisions
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Some solid compounds can exist in two or more | '''Polyamorphic systems''' and liquid-liquid transitions. Some solid compounds can exist in two or more ''polymorphs'' with different atomic structures but the same chemical composition. | ||
In the case of a pure element, this behavior is termed | In the case of a pure element, this behavior is termed ''allotropy''. | ||
The existence of liquid polymorphs is known as | The existence of liquid polymorphs is known as ''polyamorphism'', i.e. the ability of a substance to exist in several different amorphous modifications. | ||
Note: glasses are not in thermodynamic equilibrium, so such transformations do not correspond to true phase transitions from one stable liquid to another. | Note: glasses are not in thermodynamic equilibrium, so such transformations do not correspond to true phase transitions from one stable liquid to another. | ||
===Polyamorphic systems=== | ===Polyamorphic systems=== | ||
[[Realistic models | Real systems]] that present liquid-liquid transitions: | [[Realistic models | Real systems]] that present liquid-liquid transitions: | ||
*[[Carbon]] | *[[Carbon]] | ||
*[[Gallium]] | |||
*[[Germanium]] | *[[Germanium]] | ||
*[[Butanol |n-butanol]] | *[[Butanol |n-butanol]] | ||
*[[ | *[[Phosphorus]] | ||
*[[Silica]] | *[[Silica]] | ||
*[[Silicon]] | *[[Silicon]] | ||
| Line 14: | Line 15: | ||
*[[Water]] | *[[Water]] | ||
*[[Yttria–alumina]] | *[[Yttria–alumina]] | ||
==Models== | |||
[[Idealised models]] that present liquid-liquid transitions: | [[Idealised models]] that present liquid-liquid transitions: | ||
*[[Buldyrev and Stanley model]] | *[[Buldyrev and Stanley model]] | ||
| Line 20: | Line 22: | ||
*[[polyamorphism: Ramp model | Jagla ramp model]] | *[[polyamorphism: Ramp model | Jagla ramp model]] | ||
*[[Roberts and Debenedetti model]] | *[[Roberts and Debenedetti model]] | ||
*[[Square shoulder + square well]] | *[[Square shoulder + square well model]] | ||
*[[Henriques and Barbosa model]] | |||
==References== | |||
<references/> | |||
;Related reading | |||
*[http://dx.doi.org/10.1126/science.267.5206.1924 C. A. Angell "Formation of Glasses from Liquids and Biopolymers", Science '''267''' pp. 1924 - 1935 (1995)] | |||
*[http://dx.doi.org/10.1126/science.275.5298.322 Peter H. Poole, Tor Grande, C. Austen Angell, Paul F. McMillan "Polymorphic Phase Transitions in Liquids and Glasses", Science '''275''' pp. 322 - 323 (1997)] | |||
*[http://dx.doi.org/10.1038/35003088 Paul McMillan "Phase transitions: Jumping between liquid states", Nature '''403''' pp. 151-152 (2000)] | |||
*[http://dx.doi.org/10.1126/science.1104417 Jeff L. Yarger and George H. Wolf "Polymorphism in Liquids", Science '''306''' pp. 820 - 821 (2004)] | |||
*[http://dx.doi.org/10.1039/b401308p Paul F. McMillan "Polyamorphic transformations in liquids and glasses", Journal of Materials Chemistry '''14''' pp. 1506-1512 (2004)] | |||
*[http://dx.doi.org/10.1088/0953-8984/17/43/L01 Peter H. Poole, Ivan Saika-Voivod and Francesco Sciortino "Density minimum and liquid–liquid phase transition", Journal of Physics: Condensed Matter '''17''' pp. L431-L437 (2005)] | |||
*[http://dx.doi.org/10.1039/b517775h Martin C. Wilding, Mark Wilson and Paul F. McMillan "Structural studies and polymorphism in amorphous solids and liquids at high pressure", Chemical Society Reviews '''35''' pp. 964-986 (2006)] | |||
*[http://dx.doi.org/10.1038/35055514 Giancarlo Franzese, Gianpietro Malescio, Anna Skibinsky, Sergey V. Buldyrev, and H. Eugene Stanley "Generic mechanism for generating a liquid-liquid phase transition", Nature '''409''' pp. 692-695 (2001)] | |||
*[http://dx.doi.org/10.1103/PhysRevLett.106.115706 Megan J. Cuthbertson and Peter H. Poole "Mixturelike Behavior Near a Liquid-Liquid Phase Transition in Simulations of Supercooled Water", Physical Review Letters '''106''' 115706 (2011)] | |||
*[http://dx.doi.org/10.1063/1.3593441 G. Makov and E. Yahel "Liquid-liquid phase transformations and the shape of the melting curve", Journal of Chemical Physics '''134''' 204507 (2011)] | |||
*[http://dx.doi.org/10.1063/1.4967939 Debdas Dhabal, Charusita Chakravarty, Valeria Molinero and Hemant K. Kashyap "Comparison of liquid-state anomalies in Stillinger-Weber models of water, silicon, and germanium", Journal of Chemical Physics '''145''' 214502 (2016)] | |||
[[category:Complex systems]] | [[category:Complex systems]] | ||
Latest revision as of 14:05, 12 December 2016
Polyamorphic systems and liquid-liquid transitions. Some solid compounds can exist in two or more polymorphs with different atomic structures but the same chemical composition. In the case of a pure element, this behavior is termed allotropy. The existence of liquid polymorphs is known as polyamorphism, i.e. the ability of a substance to exist in several different amorphous modifications. Note: glasses are not in thermodynamic equilibrium, so such transformations do not correspond to true phase transitions from one stable liquid to another.
Polyamorphic systems[edit]
Real systems that present liquid-liquid transitions:
- Carbon
- Gallium
- Germanium
- n-butanol
- Phosphorus
- Silica
- Silicon
- Triphenyl phosphite
- Water
- Yttria–alumina
Models[edit]
Idealised models that present liquid-liquid transitions:
- Buldyrev and Stanley model
- Hemmer and Stell model
- Jagla ramp model
- Roberts and Debenedetti model
- Square shoulder + square well model
- Henriques and Barbosa model
References[edit]
- Related reading
- C. A. Angell "Formation of Glasses from Liquids and Biopolymers", Science 267 pp. 1924 - 1935 (1995)
- Peter H. Poole, Tor Grande, C. Austen Angell, Paul F. McMillan "Polymorphic Phase Transitions in Liquids and Glasses", Science 275 pp. 322 - 323 (1997)
- Paul McMillan "Phase transitions: Jumping between liquid states", Nature 403 pp. 151-152 (2000)
- Jeff L. Yarger and George H. Wolf "Polymorphism in Liquids", Science 306 pp. 820 - 821 (2004)
- Paul F. McMillan "Polyamorphic transformations in liquids and glasses", Journal of Materials Chemistry 14 pp. 1506-1512 (2004)
- Peter H. Poole, Ivan Saika-Voivod and Francesco Sciortino "Density minimum and liquid–liquid phase transition", Journal of Physics: Condensed Matter 17 pp. L431-L437 (2005)
- Martin C. Wilding, Mark Wilson and Paul F. McMillan "Structural studies and polymorphism in amorphous solids and liquids at high pressure", Chemical Society Reviews 35 pp. 964-986 (2006)
- Giancarlo Franzese, Gianpietro Malescio, Anna Skibinsky, Sergey V. Buldyrev, and H. Eugene Stanley "Generic mechanism for generating a liquid-liquid phase transition", Nature 409 pp. 692-695 (2001)
- Megan J. Cuthbertson and Peter H. Poole "Mixturelike Behavior Near a Liquid-Liquid Phase Transition in Simulations of Supercooled Water", Physical Review Letters 106 115706 (2011)
- G. Makov and E. Yahel "Liquid-liquid phase transformations and the shape of the melting curve", Journal of Chemical Physics 134 204507 (2011)
- Debdas Dhabal, Charusita Chakravarty, Valeria Molinero and Hemant K. Kashyap "Comparison of liquid-state anomalies in Stillinger-Weber models of water, silicon, and germanium", Journal of Chemical Physics 145 214502 (2016)