Universität Innsbruck
Institut für Theoretische Physik
Office: 2S06 ITP
Technikerstr. 21A
A-6020 Innsbruck
Mail: smandal86[a]gmail.com
Tel.: +43 512 507 52271
Research interests:
- strongly confined liquids
- micro-rheology of dilute colloidal suspensions
- active colloidal glasses
- heterogeneous dynamics of colloidal binary-mixture
Recent work:
Strongly confined liquids:
Transport of liquids in nano-sized pores or narrow channels is crucial for most natural and industrial processes. It can exhibit a series of fascinating behaviors when the confinement length scale is comparable to the molecular size. We explore this regime of confinement by simulating hard-spheres confined in a slit or wedge geometry. Our study suggests that the confinement length scale appears as another control parameter to the non-equilibrium phase diagram. In particular, we find that a wedge-like confinement with very very small tilt angle can promote a liquid-glass coexistence. Since there is a growing interest for smaller system in modern applications, these new findings can be utilized for future technological advancements.
Fig. Hard-sphere liquids confined in a wedge geometry.
Publications:
- S. Mandal and T. Franosch, Diverging time scale in the dimensional crossover for liquids in strong confinement, Physical Review Letters, APS, 118, 065901. Journal
- S. Mandal, S. Lang, M. Gross, M. Oettel, D. Raabe, T. Franosch, F. Varnik, Multiple reentrant glass transitions in confined hard-sphere glasses, Nature Communications, 5, 4435. Journal
- F. Varnik, S. Mandal, V. Chikkadi, D. Denisov, P. Olsson, D. Vagberg, D. Raabe, P. Schall, Correlations of plasticity in sheared glasses, Physical Review E, 89, 1 – 6. Journal
- S. Mandal, V. Chikkadi, B. Nienhuis, D. Raabe, P. Schall, F. Varnik, Single-particle fluctuations and directional correlations in driven hard-sphere glasses, Physical Review E, 88, 022129. Journal
- S. Mandal, M. Gross, D. Raabe, F. Varnik, Flow heterogeneity and correlations in a sheared hard sphere glass: insight from computer simulations, AIP Conference Proceedings, AIP Publisher, New York, 1518, 266-271. Journal
- V. Chikkadi, S. Mandal, B. Nienhuis, D. Raabe, F. Varnik, P. Schall, Shear-induced anisotropic decay of correlations in hard-sphere colloidal glasses, EPL Journal, 100, 56001. Journal
- S. Mandal, M. Gross, D. Raabe, F. Varnik, Heterogeneous shear in hard sphere glasses, Physical Review Letters, APS, 108, 098301. Journal
Education:
2014: Doctoral degree from Max-Planck-Institut für Eisenforschung, Düsseldorf, Germany
2008: M. Sc. in Physics, IIT Madras, Chennai, India
2006: B. Sc. in Physics, Calcutta University, Calcutta, India
