TY - JOUR
T1 - Optimized Large Hyperuniform Binary Colloidal Suspensions in Two Dimensions
AU - Ma, Zheng
AU - Lomba, Enrique
AU - Torquato, Salvatore
N1 - Publisher Copyright:
© 2020 American Physical Society.
PY - 2020/8/7
Y1 - 2020/8/7
N2 - The creation of disordered hyperuniform materials with extraordinary optical properties (e.g., large complete photonic band gaps) requires a capacity to synthesize large samples that are effectively hyperuniform down to the nanoscale. Motivated by this challenge, we propose a feasible equilibrium fabrication protocol using binary paramagnetic colloidal particles confined in a 2D plane. The strong and long-ranged dipolar interaction induced by a tunable magnetic field is free from screening effects that attenuate long-ranged electrostatic interactions in charged colloidal systems. Specifically, we numerically find a family of optimal size ratios that makes the two-phase system effectively hyperuniform. We show that hyperuniformity is a general consequence of low isothermal compressibilities, which makes our protocol suitable to treat more general systems with other long-ranged interactions, dimensionalities, and/or polydispersity. Our methodology paves the way to synthesize large photonic hyperuniform materials that function in the visible to infrared range and hence may accelerate the discovery of novel photonic materials.
AB - The creation of disordered hyperuniform materials with extraordinary optical properties (e.g., large complete photonic band gaps) requires a capacity to synthesize large samples that are effectively hyperuniform down to the nanoscale. Motivated by this challenge, we propose a feasible equilibrium fabrication protocol using binary paramagnetic colloidal particles confined in a 2D plane. The strong and long-ranged dipolar interaction induced by a tunable magnetic field is free from screening effects that attenuate long-ranged electrostatic interactions in charged colloidal systems. Specifically, we numerically find a family of optimal size ratios that makes the two-phase system effectively hyperuniform. We show that hyperuniformity is a general consequence of low isothermal compressibilities, which makes our protocol suitable to treat more general systems with other long-ranged interactions, dimensionalities, and/or polydispersity. Our methodology paves the way to synthesize large photonic hyperuniform materials that function in the visible to infrared range and hence may accelerate the discovery of novel photonic materials.
UR - http://www.scopus.com/inward/record.url?scp=85089968054&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85089968054&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.125.068002
DO - 10.1103/PhysRevLett.125.068002
M3 - Article
C2 - 32845658
AN - SCOPUS:85089968054
SN - 0031-9007
VL - 125
JO - Physical review letters
JF - Physical review letters
IS - 6
M1 - 068002
ER -