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Rough or crumpled: Phases in kinetic growth with surface relaxation

Sudip Mukherjee*

Abhik Basu†

  • Barasat Government College, 10, KNC Road, Gupta Colony, Barasat, Kolkata 700124, West Bengal, India

  • Theory Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Calcutta 700064, West Bengal, India

  • *sudip.bat@gmail.com
  • †abhik.123@gmail.com,abhik.basu@saha.ac.in

Phys. Rev. E 106, L022102 – Published 9 August, 2022

DOI: https://doi.org/10.1103/PhysRevE.106.L022102

Abstract

We show that generic kinetic growth processes with surface relaxations can exhibit a hitherto unexplored crumpled phase with short-range orientational order at dimensions d<4. A sufficiently strong spatially nonlocal part of the chemical potential associated with the particle current above a threshold in the system can trigger this crumpling. The system can also be in a perturbatively accessible rough phase with long-range orientational order but short-range positional order at d<4 with known scaling exponents. Intriguingly, in d>4 we argue that there is no crumpling transition; instead, there is a roughening transition from a smooth to a rough phase for large enough nonlocal particle chemical potential. Experimental and theoretical implications of these results are discussed.

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