Evidence of quadratic time dependence of the kinetics in a continuous order-disorder transition
Kinetics of order-disorder transitions including melting in low-dimensional systems is theoretically predicted to be heterogeneous that start by nucleation in defect sites at lower than homogeneous bulk-melting temperature requiring substantially lower energy barrier. We probed kinetics of such transition in thin multilayered films using x-ray scattering and in situ atomic force microscopy (AFM) studies. X-ray results show linear increase with time in in-plane separation of ordered domains while in situ AFM measurements show a linear increase in height of disordered domains with time. The structure factor of the diffraction peak reduces linearly with square of time as the material disorder.
Authors
- Mrinmay K. Mukhopadhyay (ORCID: https://orcid.org/0000-0001-8050-8661)
- Alexander Meinhardt (ORCID: https://orcid.org/0000-0003-0552-3188)
- Sabyasachi Karmakar (ORCID: https://orcid.org/0009-0005-8977-2334)
- M. K. Sanyal (ORCID: https://orcid.org/0000-0002-3847-8793)
- Thomas F. Keller (ORCID: https://orcid.org/0000-0002-3770-6344)
Institutions
- Universität Hamburg (DE)
- Saha Institute of Nuclear Physics (IN)
- Homi Bhabha National Institute (IN)
- Deutsches Elektronen-Synchrotron DESY (DE)
Publication Details
- Journal
- Physical review. B./Physical review. B
- Published
- 2025-01-10
- DOI
- https://doi.org/10.1103/physrevb.111.024105
- Citations
- 1
- Primary Topic
- Advanced Thermodynamics and Statistical Mechanics
- Type
- article
- Field-Weighted Citation Impact
- 1.32
Funders
- Indian National Science Academy
- Department of Science and Technology, Ministry of Science and Technology, India
- Jawaharlal Nehru Centre for Advanced Scientific Research