19 citations · 110 across the 14 of their papers we have counts for
14 papers
Self-assembling clusters of particles on a shrinking liquid surface
Xin Li, Shuchen Zhang, Mark J. Bowick +1
After rainfall, pine needles often float on the surface of small puddles. As the water evaporates, they self-assemble into distinct clusters. Motivated by this natural phenomenon,…
Spin-dependent gain and loss in photonic quantum spin Hall systems
Tian-Rui Liu, Kai Bai, Jia-Zheng Li +3
Topological phases are greatly enriched by including non-Hermiticity. While most works focus on the topology of the eigenvalues and eigenstates, how topologically nontrivial non-He…
Chiral photonic crystals from sphere packing
Tao Liu, Ho-Kei Chan, Duanduan Wan
Inspired by recent developments in self-assembled chiral nanostructures, we have explored the possibility of using spherical particles packed in cylinders as building blocks for ch…
Effects of orientational and positional randomness of particles on photonic band gap
Zichen Qin, Tao Liu, Duanduan Wan
A recent work [PRL, 126, 208002 (2021)] has explored how thermal noise-induced randomness in a self-assembled photonic crystal affects photonic band gaps (PBGs). For the system of…
The suppression of Finite Size Effect within a Few Lattices
Tao Liu, Kai Bai, Yicheng Zhang +4
Boundary modes localized on the boundaries of a finite-size lattice experience a finite size effect (FSE) that could result in unwanted couplings, crosstalks and formation of gaps…
The configurational entropy of colloidal particles in a confined space
Duanduan Wan
We calculate the configurational entropy of colloidal particles in a confined geometry interacting as hard disks using Monte Carlo integration method. In particular, we consider sy…
Spontaneous tilt of single-clamped thermal elastic sheets
Zhitao Chen, Duanduan Wan, Mark J. Bowick
Very thin elastic sheets, even at zero temperature, exhibit nonlinear elastic response by virtue of their dominant bending modes. Their behavior is even richer at finite temperatur…
Randomness in self-assembled colloidal crystals can widen photonic band gaps through particle shape and internal structure
Duanduan Wan, Sharon C. Glotzer
Using computer simulations, we explore how thermal noise-induced randomness in a self-assembled photonic crystal affects its photonic band gaps (PBGs). We consider a two-dimensiona…
FCC-to-BCC phase transitions in convex and concave hard particle systems
Duanduan Wan, Chrisy Xiyu Du, Greg van Anders +1
Particle shape plays an important role in the phase behavior of colloidal self-assembly. Recent progress in particle synthesis has made particles of polyhedral shapes and dimpled s…
Shapes within shapes: how particles arrange inside a cavity
Duanduan Wan, Sharon C. Glotzer
We calculate the configurational entropy of hard particles confined in a cavity using Monte Carlo integration. Multiple combinations of particle and cavity shapes are considered. F…
Thermal stiffening of clamped elastic ribbons
Duanduan Wan, David R. Nelson, Mark J. Bowick
We use molecular dynamics to study the vibrations of a thermally fluctuating two-dimensional elastic membrane clamped at both ends. We directly extract the eigenmodes from resonant…
Planar and curved droplet networks
Duanduan Wan, Mark J. Bowick
We study how a two-dimensional square sheet of droplets evolves to the preferred triangular lattice. The rearrangement can be induced either by an impurity seed for flat sheets or…
Shape-shifting droplet networks
T. Zhang, Duanduan Wan, J. M. Schwarz +1
We consider a three-dimensional network of aqueous droplets joined by single lipid bilayers to form a cohesive, tissue-like material. The droplets in these networks can be programm…
Effects of scars on crystalline shell stability under external pressure
Duanduan Wan, Mark J. Bowick, Rastko Sknepnek
We study how the stability of spherical crystalline shells under external pressure is influenced by the defect structure. In particular, we compare stability for shells with a mini…