BINARY HARD-SPHERE COLLOID-DROPLET MIXTURES WITH THE PYRITE-TYPE STRUCTURE

We investigate the assembly of a binary mixture of patchy colloids and droplets into crystal structures by use of the space-filling principle and Metropolis Monte Carlo simulations. Here, colloids with six patches in an octahedral symmetry attract droplets, whereas the colloid-colloid and droplet-dr...

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Main Authors: Minh Tu Vu, Tran Thanh Nam Nguyen, Phan Thuy Linh Tran, Van Dien Pham, Thi Hien Doan, Manh Cuong Tran, Van Hai Pham
Format: Article
Language:English
Published: Dalat University 2023-03-01
Series:Tạp chí Khoa học Đại học Đà Lạt
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Online Access:https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/1048
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author Minh Tu Vu
Tran Thanh Nam Nguyen
Phan Thuy Linh Tran
Van Dien Pham
Thi Hien Doan
Manh Cuong Tran
Van Hai Pham
author_facet Minh Tu Vu
Tran Thanh Nam Nguyen
Phan Thuy Linh Tran
Van Dien Pham
Thi Hien Doan
Manh Cuong Tran
Van Hai Pham
author_sort Minh Tu Vu
collection DOAJ
description We investigate the assembly of a binary mixture of patchy colloids and droplets into crystal structures by use of the space-filling principle and Metropolis Monte Carlo simulations. Here, colloids with six patches in an octahedral symmetry attract droplets, whereas the colloid-colloid and droplet-droplet pairwise interactions are purely hard-core repulsions. Within parameter space regions that allow for stable binary crystals, we find the formation of different structure types, which are colloidal analogs of the NaCl phase and pyrite (FeS2) phase, as a function of the droplet-to-colloid sphere diameter ratio. This finding is consistent with theoretical predictions. Notably, while the NaCl structure type is a commonly known structure of hard-sphere colloids and nanoparticles, the formation of the FeS2 structure type from colloidal dispersion has not been explored. Our approach suggests a potential route to obtain colloidal crystals with more complex structures.
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institution Kabale University
issn 0866-787X
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publishDate 2023-03-01
publisher Dalat University
record_format Article
series Tạp chí Khoa học Đại học Đà Lạt
spelling doaj-art-0ab36f38c8db4d619dcbb9342ea8d9b92025-02-03T03:29:34ZengDalat UniversityTạp chí Khoa học Đại học Đà Lạt0866-787X2023-03-01839710.37569/DalatUniversity.13.1.1048(2023)1103BINARY HARD-SPHERE COLLOID-DROPLET MIXTURES WITH THE PYRITE-TYPE STRUCTUREMinh Tu Vu0Tran Thanh Nam Nguyen1Phan Thuy Linh Tran2Van Dien Pham3Thi Hien Doan4Manh Cuong Tran5Van Hai Pham6Hanoi National University of EducationHanoi National University of EducationHanoi National University of EducationHanoi National University of EducationHanoi National University of EducationHanoi National University of EducationHanoi National University of EducationWe investigate the assembly of a binary mixture of patchy colloids and droplets into crystal structures by use of the space-filling principle and Metropolis Monte Carlo simulations. Here, colloids with six patches in an octahedral symmetry attract droplets, whereas the colloid-colloid and droplet-droplet pairwise interactions are purely hard-core repulsions. Within parameter space regions that allow for stable binary crystals, we find the formation of different structure types, which are colloidal analogs of the NaCl phase and pyrite (FeS2) phase, as a function of the droplet-to-colloid sphere diameter ratio. This finding is consistent with theoretical predictions. Notably, while the NaCl structure type is a commonly known structure of hard-sphere colloids and nanoparticles, the formation of the FeS2 structure type from colloidal dispersion has not been explored. Our approach suggests a potential route to obtain colloidal crystals with more complex structures.https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/1048colloid-droplet mixturesmonte carlo simulationspatchy colloidsspace-filling curves.
spellingShingle Minh Tu Vu
Tran Thanh Nam Nguyen
Phan Thuy Linh Tran
Van Dien Pham
Thi Hien Doan
Manh Cuong Tran
Van Hai Pham
BINARY HARD-SPHERE COLLOID-DROPLET MIXTURES WITH THE PYRITE-TYPE STRUCTURE
Tạp chí Khoa học Đại học Đà Lạt
colloid-droplet mixtures
monte carlo simulations
patchy colloids
space-filling curves.
title BINARY HARD-SPHERE COLLOID-DROPLET MIXTURES WITH THE PYRITE-TYPE STRUCTURE
title_full BINARY HARD-SPHERE COLLOID-DROPLET MIXTURES WITH THE PYRITE-TYPE STRUCTURE
title_fullStr BINARY HARD-SPHERE COLLOID-DROPLET MIXTURES WITH THE PYRITE-TYPE STRUCTURE
title_full_unstemmed BINARY HARD-SPHERE COLLOID-DROPLET MIXTURES WITH THE PYRITE-TYPE STRUCTURE
title_short BINARY HARD-SPHERE COLLOID-DROPLET MIXTURES WITH THE PYRITE-TYPE STRUCTURE
title_sort binary hard sphere colloid droplet mixtures with the pyrite type structure
topic colloid-droplet mixtures
monte carlo simulations
patchy colloids
space-filling curves.
url https://tckh.dlu.edu.vn/index.php/tckhdhdl/article/view/1048
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