文献类型：期刊文献

英文题名：Tetragonal gyroid structure from symmetry manipulation: A brand-new member of the gyroid surface family

作者：Wang, Shuqi[1];Chen, Hao[2];Zhong, Tianyu[1];Deng, Quanzheng[3];Yang, Shaobo[1];Cao, Yuanyuan[1];Li, Yongsheng[1,4];Han, Lu[3]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn, Lab Low Dimens Mat Chem,Key Lab Ultrafine Mat,Mini, Shanghai 200237, Peoples R China;[2]ShanghaiTech Univ, Inst Math Sci, 393 Middle Huaxia Rd, Shanghai 201210, Peoples R China;[3]Tongji Univ, Sch Chem Sci & Engn, Shanghai 200092, Peoples R China;[4]Shihezi Univ, Sch Chem & Chem Engn, Pharm Sch, State Key Lab Incubat Base Green Proc Chem Engn, Shihezi 832003, Peoples R China

年份：2024

卷号：10

期号：5

外文期刊名：CHEM

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001240826300001)】；

基金：The authors thank Prof. Hexiang Deng and Mr. Gaoli Hu at Wuhan University for helping with SAXS measurements. This work was financially supported by the National Key Research and Development Program of China (grant 2022YFC2403200 to Y.L. and Y.C.) , the National Natural Science Foundation of China (grants 22005096 to Y.C., 51972112 to Y.L., and 22373074 to L.H.) , the Key Field Research Program (grant 2023AB054 to Y.L.) , the Basic Research Program of Shanghai (grant 21JC1406003 to Y.L.) , the Shanghai Sailing Program (grant 20YF1410100 to Y.C.) , and the Fundamental Research Funds for the Central Universities (granted to Y.C. and L.H.) .

语种：英文

摘要：Gyroid (G) surfaces, the most famous naturally occurring triply periodic hyperbolic surfaces, are well known for their amazing properties closely associated with their intriguing symmetries. Although mathematicians and physicists are devoted to exploring new G surface family members, it remains a mystery whether any novel symmetrical G substructure can be experimentally validated beyond its well-known cubic -symmetrical systems. Herein, we report a tetragonal G substructure (shifted tG) obtained from a cooperative binary self -assembly system consisting of polystyrene- b -poly(acrylic acid) and cetyltrimethylammonium bromide. Shifted tG features periodic distributions of uneven matrix thicknesses with local concave free energies, exhibits an extraordinarily shifted double-gyroidal network with a low -symmetry space group of I 4 1 / a (no. 88), and possesses shifting -degree -dependent photonic band gaps that are never present in its unshifted cubic -symmetrical counterparts. The emergence of new G structures demonstrates a new frontier in the minimal surface subject, crucial for its exploration and innovation.