Results 51 to 60 of about 13,470 (297)

Kinetic Chiral Resolution by Thin Layer Extraction

Chemical Engineering Transactions, 2013
A theoretical study of kinetic chiral resolution of ionic compounds by thin layer extraction, based on a model that has been successfully tested experimentally by others indicates that considerable resolution may be achieved in a single contacting stage provided the reaction rates of the two enantiomers are sufficiently differentiated.
openaire   +2 more sources

Template‐Confined Synthesis of Shape‐Engineered Single‐Crystal Gold Microplates in Lithographically‐Defined Polymeric Patterns

Advanced Functional Materials, EarlyView.
Single‐crystal gold microplates are high‐performance nanomaterials with an impressive wafer‐based application space. Progress has, however, been tempered by an inability to exert synthetic control over microplate size, shape, and positioning. In this work, control over these parameters is demonstrated using a seed‐mediated synthesis that both confines ...
Debasish Panda, Md Rashed Nizam, Walker J. Tuff, Collin C. Wyant, Maksym Zhukovskyi, Matthew R. Rosenberger, Botond Sánta, Edward C. Kinzel, Robert A. Hughes, Svetlana Neretina   +9 more
wiley   +1 more source

Large interlayer Dzyaloshinskii-Moriya interactions across Ag-layers

Nature Communications, 2023
Seeking to enhance the strength of the interlayer Dzyaloshinskii-Moriya interaction (IL-DMI) through a combination of atomic and Rashba type spin-orbit coupling (SOC) we studied the strength and the thickness evolution of effective interlayer coupling in
Jon Ander Arregi, Patricia Riego, Andreas Berger, Elena Y. Vedmedenko   +3 more
doaj   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

The spin structures of interlayer coupled magnetic films with opposite chirality

Scientific Reports, 2018
Using Monte-Carlo simulations and micromagnetic simulations, we reveal how the spin structural correlation and the skyrmion dynamics are affected by the interlayer coupling in a chiral magnetic bilayer system, in which the two layers have opposite ...
S. P. Kang, N. J. Kim, H. Y. Kwon, J. W. Choi, B. C. Min, C. Won   +5 more
doaj   +1 more source

Dye‐Initiated Chirped Cholesteric Polymer Networks Exhibiting Broadband Dissipative Chiral Photonic Bands

Advanced Functional Materials, EarlyView.
A dye‐based photoinitiator acting as a structure‐directing element, guides the formation of a cholesteric polymer network that behaves as a chirped photonic structure with dissipative chiral coupling. Photopolymerization freezes a depth‐dependent helical pitch, broadening the Bragg resonance spectrum.
Alfredo Mazzulla, Pasquale Pagliusi, Gabriella Cipparrone   +2 more
wiley   +1 more source

Synthesis of Homochiral N‐Heterocyclic Carbene‐Based Nanosheets for Enhanced Asymmetric Catalysis

Advanced Science
Utilizing ultrathin 2D metal–organic framework nanosheets (2D MONs) as supports for incorporating chiral catalysts represents a highly promising avenue in the field of asymmetric catalysis.
Xinchao Wang, Zhiwen Wang, Zhaoxing Wang, Tian‐Fu Liu, Shangda Li, Fei Wang, Jian Zhang   +6 more
doaj   +1 more source

Oblique light incidence method to study topological defects in nematic layers with conical boundary conditions

Scientific Reports, 2021
A polarization microscopy method to investigate the orientational structures and boojums formed in the chiral and achiral nematic layers under conical (tilted) boundary conditions has been developed.
Mikhail N. Krakhalev
doaj   +1 more source

Spin and Charge Control of Topological End States in Chiral Graphene Nanoribbons on a 2D Ferromagnet

Advanced Materials, EarlyView.
Chiral graphene nanoribbons on a ferromagnetic gadolinium‐gold surface alloy display tunable spin and charge states at their termini. Atomic work function variations and exchange fields enabe transitions between singlet, doublet, and triplet configurations.
Leonard Edens, Francisco Romero‐Lara, Trisha Sai, Kalyan Biswas, Manuel Vilas‐Varela, Thomas Frederiksen, Diego Peña, Fabian Schulz, Jose Ignacio Pascual   +8 more
wiley   +1 more source

Chiral packing of chiral quintuple layers polycatenated to give a three-dimensional network in the coordination polymer [Co-5(bpe)(9)(H2O)(8)(SO4)(4)](SO4)center dot 14H(2)O [bpe=1,2-bis(4-pyridyl)ethane]

, 2000
The reaction of cobalt(II) sulfate with 1,2-bis(4-pyridyl)ethane gives a crystalline polymeric species comprised of chiral quintuple layers with five decks of linear chains rotated by 120 degrees from level to level, that are perpendicularly joined via ...
G. Ciani, D.M. Proserpio, L. Carlucci, S. Rizzato   +3 more
core   +1 more source