Interfacial properties of Morse fluids
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- Interfacial properties of Morse fluids
- Singh, J. K.; Adhikari, J.; Kwak, Sang Kyu
- LIQUID PHASE COEXISTENCE; LENNARD-JONES FLUID; SQUARE-WELL FLUID; SURFACE-TENSION; CUBIC METALS; MONTE-CARLO; TEMPERATURE; TRANSITION; BEHAVIOR
- Issue Date
- TAYLOR & FRANCIS LTD
- MOLECULAR PHYSICS, v.105, no.8, pp.981 - 987
- The interfacial properties as reflected in the interfacial tension values and the density profile of Morse fluids has been studied. The parameter range is chosen to coincide with that describing the behaviour of solid metals. The interfacial tension has been found to follow Guggenheim's and MacLeod's relations. However, the constants, while independent of temperature for each metal, are not the universal values predicted; with the exception of Macleod's exponent p. The density profile illustrates the change in densities across the interface dividing the coexisting vapour and liquid phases. The correlation length is also found to follow the universal relation with temperature, but again the constants, while independent of temperature, are dependent on the type of metal. The value of constant is found to be different for all five metals considered and is found to differ from the three-dimensional Ising model value of = 0.630, which is also predicted by applying the Lennard-Jones model.
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