The structure of a core-softened system in a narrow slit pore

YD Fomin and AB Teslyuk, PHYSICS AND CHEMISTRY OF LIQUIDS, 60, 809-826 (2022).

DOI: 10.1080/00319104.2022.2053973

We have investigated the behaviour of a core-softened system in a narrow slit pore (the width of the pore is equal to three diameters of a particle). In the previous studies, it was shown that strongly confined systems formed crystalline phases which consisted of several triangular or square layers. These phases can also be considered as cuts of FCC or HCP structures. We have shown that the behaviour of a core-softened system is more complex. We have also observed a quasicrystalline phase. Moreover, the phase with two triangular layers appears at lower densities than the phase with two square layers, which is in contrast to the behaviour of the systems studied before. These results demonstrate that the phase behaviour of strongly confined systems can be even more complex than it has been supposed before.

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