Generation of spectral holes by inserting central structurally chiral layer defects in periodic structurally chiral materials

2007 ◽  
Vol 275 (2) ◽  
pp. 283-287 ◽  
Author(s):  
Akhlesh Lakhtakia
Keyword(s):  
Chiral Materials ◽  
Chiral Layer

Self-Assembly of a Chiral Cubic Three-Connected Net from the High Symmetry Molecules C60 and SnI4

2020 ◽  
Author(s):  
Daniel B. Straus ◽  
Robert J. Cava
Keyword(s):  
Organic Synthesis ◽  
Self Assembly ◽  
Van Der Waals ◽  
Van Der Waals Forces ◽  
High Symmetry ◽  
Molecular Chirality ◽  
Chiral Materials ◽  
Self Assembled ◽  
Chiral Centers

The design of new chiral materials usually requires stereoselective organic synthesis to create molecules with chiral centers. Less commonly, achiral molecules can self-assemble into chiral materials, despite the absence of intrinsic molecular chirality. Here, we demonstrate the assembly of high-symmetry molecules into a chiral van der Waals structure by synthesizing crystals of C<sub>60</sub>(SnI<sub>4</sub>)<sub>2</sub> from icosahedral buckminsterfullerene (C<sub>60</sub>) and tetrahedral SnI4 molecules through spontaneous self-assembly. The SnI<sub>4</sub> tetrahedra template the Sn atoms into a chiral cubic three-connected net of the SrSi<sub>2</sub> type that is held together by van der Waals forces. Our results represent the remarkable emergence of a self-assembled chiral material from two of the most highly symmetric molecules, demonstrating that almost any molecular, nanocrystalline, or engineered precursor can be considered when designing chiral assemblies.

scholarly journals The spin selectivity effect in chiral materials

APL Materials ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 040902
Author(s):  
D. H. Waldeck ◽  
R. Naaman ◽  
Y. Paltiel
Keyword(s):  
Chiral Materials

scholarly journals Waves in Microstructured Conducting Sheath Helix Embedded Optical Guides with Chiral Nihility and Chiral Materials

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
N. Iqbal ◽  
M. A. Baqir ◽  
P. K. Choudhury
Keyword(s):  
Boundary Conditions ◽  
Flux Density ◽  
Energy Flux ◽  
Pitch Angle ◽  
Electromagnetic Waves ◽  
The Core ◽  
Dispersion Behavior ◽  
Chiral Materials ◽  
Energy Flux Density

The paper deals with the sustainment of electromagnetic waves in circularly cylindrical optical guide with chiral nihility and chiral materials in the core and the clad sections, respectively. A perfectly conducting tightly wound helix is introduced at the core-clad interface. The eigenvalue relation for such a complex optical microstructured guide is deduced by applying suitable boundary conditions at the core-clad interface, and the dispersion behavior is analyzed by varying the pitch angle of helix. The sustainment of energy flux density in such optical guides is estimated under various structural conditions, and the density patterns in core-clad sections are anatomized analytically.

Microwave chiral materials

1996 ◽  
Author(s):  
C.R. Brewitt-Taylor
Keyword(s):  
Chiral Materials

scholarly journals Electro–optic Structurally Chiral Materials

2007 ◽  
Author(s):  
Akhlesh Lakhtakia ◽  
Juan Adrian Reyes
Keyword(s):  
Electro Optic ◽  
Chiral Materials

scholarly journals Howard Flack and the Flack Parameter

Chemistry ◽  
2020 ◽  
Vol 2 (4) ◽  
pp. 796-804
Author(s):  
David John Watkin ◽  
Richard Ian Cooper
Keyword(s):  
Structure Determination ◽  
Standard Uncertainty ◽  
Crystallographic Structure ◽  
X Ray ◽  
Original Algorithm ◽  
X Ray Crystallography ◽  
Chiral Materials

The Flack Parameter is now almost universally reported for all chiral materials characterized by X-ray crystallography. Its elegant simplicity was an inspired development by Howard Flack, and although the original algorithm for its computation has been strengthened by other workers, it remains an essential outcome for any crystallographic structure determination. As with any one-parameter metric, it needs to be interpreted in the context of its standard uncertainty.

scholarly journals Chiral Materials: Chiral Surface Lattice Resonances (Adv. Mater. 22/2020)

2020 ◽  
Vol 32 (22) ◽  
pp. 2070173
Author(s):  
Eric S. A. Goerlitzer ◽  
Reza Mohammadi ◽  
Sergey Nechayev ◽  
Kirsten Volk ◽  
Marcel Rey ◽  
...  
Keyword(s):  
Surface Lattice ◽  
Chiral Materials ◽  
Chiral Surface

scholarly journals Effective Mechanical Responses of a Class of 2D Chiral Materials

2020 ◽  
Vol 257 (10) ◽  
pp. 2070037
Author(s):  
Yun-Che Wang ◽  
Tsai-Wen Ko ◽  
Xuejun Ren
Keyword(s):  
Mechanical Responses ◽  
Chiral Materials
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