Phase reentrances and solid deformations in confined colloidal crystals
A simple geometric constraint often leads to novel, complex crystalline phases distinct from the bulk. Using thin-film charge colloidal crystals, a model system with tunable interactions, we study the effects of geometric constraints. Through a combination of experiments and simulations, we systemat...
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sg-ntu-dr.10356-1748872024-04-15T06:30:13Z Phase reentrances and solid deformations in confined colloidal crystals Li, Xiaoxia Fang, Huang Sankaewtong, Krongtum Li, Minhuan Chen, Yanshuang Huang, Jiping Ni, Ran Tanaka, Hajime Tan, Peng School of Chemical and Biomedical Engineering Engineering Colloidal crystals Crystalline phasis A simple geometric constraint often leads to novel, complex crystalline phases distinct from the bulk. Using thin-film charge colloidal crystals, a model system with tunable interactions, we study the effects of geometric constraints. Through a combination of experiments and simulations, we systematically explore phase reentrances and solid deformation modes concerning geometrical confinement strength, identifying two distinct categories of phase reentrances below a characteristic layer number, N_{c}: one for bcc bulk-stable and another for fcc bulk-stable systems. We further verify that the dominant thermodynamic origin is the nonmonotonic dependence of solids' free energy on the degree of spatial confinement. Moreover, we discover transitions in solid deformation modes between interface-energy and bulk-energy dominance: below a specific layer number, N_{k}, geometric constraints generate unique soft deformation modes adaptive to confinement. These findings on the N-dependent thermodynamic and kinetic behaviors offer fresh insights into understanding and manipulating thin-film crystal structures. Ministry of Education (MOE) We acknowledge financial support from the National Natural Science Foundation of China (No. 12174071, No. 12105050, and No. 12035004), the Innovation Program of Shanghai Municipal Education Commission (No. 2023ZKZD06), and the Science and Technology Commission of Shanghai Municipality (No. 22TQ003). H. T. acknowledges Grant-in-Aid for Specially Promoted Research (JP20H05619) from the Japan Society of the Promotion of Science (JSPS). R. N. acknowledges the Academic Research Fund Tier 1 grant (RG59/21) from the Singapore Ministry of Education. 2024-04-15T06:30:13Z 2024-04-15T06:30:13Z 2024 Journal Article Li, X., Fang, H., Sankaewtong, K., Li, M., Chen, Y., Huang, J., Ni, R., Tanaka, H. & Tan, P. (2024). Phase reentrances and solid deformations in confined colloidal crystals. Physical Review Letters, 132(1), 018202-1-018202-6. https://dx.doi.org/10.1103/PhysRevLett.132.018202 0031-9007 https://hdl.handle.net/10356/174887 10.1103/PhysRevLett.132.018202 38242650 2-s2.0-85182834346 1 132 018202-1 018202-6 en RG59/21 Physical Review Letters © 2024 American Physical Society. All rights reserved. |
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Engineering Colloidal crystals Crystalline phasis Li, Xiaoxia Fang, Huang Sankaewtong, Krongtum Li, Minhuan Chen, Yanshuang Huang, Jiping Ni, Ran Tanaka, Hajime Tan, Peng Phase reentrances and solid deformations in confined colloidal crystals |
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A simple geometric constraint often leads to novel, complex crystalline phases distinct from the bulk. Using thin-film charge colloidal crystals, a model system with tunable interactions, we study the effects of geometric constraints. Through a combination of experiments and simulations, we systematically explore phase reentrances and solid deformation modes concerning geometrical confinement strength, identifying two distinct categories of phase reentrances below a characteristic layer number, N_{c}: one for bcc bulk-stable and another for fcc bulk-stable systems. We further verify that the dominant thermodynamic origin is the nonmonotonic dependence of solids' free energy on the degree of spatial confinement. Moreover, we discover transitions in solid deformation modes between interface-energy and bulk-energy dominance: below a specific layer number, N_{k}, geometric constraints generate unique soft deformation modes adaptive to confinement. These findings on the N-dependent thermodynamic and kinetic behaviors offer fresh insights into understanding and manipulating thin-film crystal structures. |
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School of Chemical and Biomedical Engineering |
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School of Chemical and Biomedical Engineering Li, Xiaoxia Fang, Huang Sankaewtong, Krongtum Li, Minhuan Chen, Yanshuang Huang, Jiping Ni, Ran Tanaka, Hajime Tan, Peng |
format |
Article |
author |
Li, Xiaoxia Fang, Huang Sankaewtong, Krongtum Li, Minhuan Chen, Yanshuang Huang, Jiping Ni, Ran Tanaka, Hajime Tan, Peng |
author_sort |
Li, Xiaoxia |
title |
Phase reentrances and solid deformations in confined colloidal crystals |
title_short |
Phase reentrances and solid deformations in confined colloidal crystals |
title_full |
Phase reentrances and solid deformations in confined colloidal crystals |
title_fullStr |
Phase reentrances and solid deformations in confined colloidal crystals |
title_full_unstemmed |
Phase reentrances and solid deformations in confined colloidal crystals |
title_sort |
phase reentrances and solid deformations in confined colloidal crystals |
publishDate |
2024 |
url |
https://hdl.handle.net/10356/174887 |
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1800916338988810240 |