Results 131 to 140 of about 143,115 (298)

Chiral Self-Sorting and the Realization of Ferroelectricity in the Columnar Liquid Crystal Phase of an Optically Inactive N,N′‑Diphenylurea Derivative Possessing Six (±)-Citronellyl Groups

ACS Omega, 2021
Miyu Moriya, Michinari Kohri, Keiki Kishikawa   +2 more
doaj   +1 more source

Anomalous Spin‐Optical Helical Effect in Ti‐Based Kagome Metal

Advanced Materials, EarlyView.
The kagome lattice hosts diverse correlated quantum states, including elusive loop currents. We report spin‐handedness selective signals in CsTi3Bi5, termed the anomalous spin‐optical helical effect, surpassing conventional spin responses. Arising from light helicity coupled to spin‐orbital correlations, this effect provides a sensitive, indirect probe
Federico Mazzola, Wojciech Brzezicki, Chiara Bigi, Armando Consiglio, Luciano Jacopo D'Onofrio, Maria Teresa Mercaldo, Adam Kłosiński, François Bertran, Patrick Le Fèvre, Oliver J. Clark, Mark T. Edmonds, Manuel Tuniz, Alessandro De Vita, Vincent Polewczyk, Jeppe B. Jacobsen, Henrik Jacobsen, Jill A. Miwa, Justin W. Wells, Anupam Jana, Ivana Vobornik, Jun Fujii, Niccolo Mignani, Narges Tarakameh Samani, Alberto Crepaldi, Giorgio Sangiovanni, Anshu Kataria, Tommaso Morresi, Samuele Sanna, Pietro Bonfá, Brenden R. Ortiz, Ganesh Pokharel, Stephen D. Wilson, Domenico Di Sante, Carmine Ortix, Mario Cuoco   +34 more
wiley   +1 more source

Chiral Thianthrenes

International Journal of Molecular Sciences
The absolute configuration and stability of two thianthrene chiral sulfoxides has been determined by means of X-ray single-crystal structure determinations. The analyses and configurations allow verification that the diastereomeric sulfoxides are stable in solution and are not interconverting, which has been suggested in some studies of sulfoxides. The
M. John Plater, William T. A. Harrison
openaire   +3 more sources

Electric‐Current‐Assisted Nucleation of Zero‐Field Hopfion Rings

Advanced Materials, EarlyView.
This work reports a novel and efficient nucleation protocol for 3D localized topological magnetic solitons‐hopfion rings in chiral magnets using pulsed electric currents. By using Lorentz transmission electron microscopy and topological analysis, we report characteristic features and extraordinary stability of hopfion rings in zero or inverted external
Xiaowen Chen, Dongsheng Song, Filipp N. Rybakov, Nikolai S. Kiselev, Long Li, Wen Shi, Rui Wu, Xuewen Fu, Olle Eriksson, Stefan Blügel, Rafal E. Dunin‐Borkowski, Haifeng Du, Fengshan Zheng   +12 more
wiley   +1 more source

Why Is the Mechanism Underlying the Chiral‐Induced Selectivity Effect Still Challenging?

Advanced Materials, EarlyView.
The chiral‐induced spin selectivity (CISS) effect is observed in many experimental configurations and for different materials. However, there are theoretical challenges in attempting to explain those results. A qualitative framework for explaining all the results is presented.
Ron Naaman, Yossi Paltiel
wiley   +1 more source

Crossover of skyrmion and helical modulations in noncentrosymmetric ferromagnets

New Journal of Physics, 2018
The coupling between angular (twisting) and longitudinal modulations arising near the ordering temperature of noncentrosymmetric ferromagnets strongly influences the structure of skyrmion states and their evolution in an applied magnetic field.
Andrey O Leonov, Alexei N Bogdanov
doaj   +1 more source

Chiral Metal Halide Perovskites for Spin‐Polarized Light‐Emitting Diodes

Advanced Materials, EarlyView.
Chiral metal–halide perovskites offer a route to circularly polarized light without external polarizers. This Perspective compares two spin‐light emitting diode concepts: intrinsically chiral emissive layers and chiral spin‐filter interlayers that inject spin‐polarized carriers into efficient achiral emitters.
Ashish Gaurav, Jihyun Kim, Nadesh Fiuza‐Maneiro, Hongki Kim, Hae‐Jun Seok, Sergio Gómez Grana, Robert L. Z. Hoye, Lakshminarayana Polavarapu, Matthew J. Fuchter   +8 more
wiley   +1 more source

Chiral two-dimensional conjugated metal-organic frameworks with high spin polarization

Nature Communications
Two-dimensional conjugated metal-organic frameworks have garnered significant research interest as emerging candidates for organic 2D crystal materials. In classical 2D crystals, chirality can give rise to unique physical phenomena; however, the precise ...
Shiyi Feng, Yang Lu, Chenchen Wang, Morteza Torabi, Xing Huang, Florian Auras, Ran He, Lukas Sporrer, Paul-Alexander Laval-Schmidt, Xizheng Wu, Xia Wang, Li Wan, Dongxu Wang, Bernd Plietker, Mike Hambsch, Markus Löffler, Stefan C. B. Mannsfeld, Claudia Felser, Xinliang Feng   +18 more
doaj   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

Advanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández, Iason Konstantinos‐Douveas, Claas Abert, Elina Zhakina, Sandra Ruiz‐Gómez, Claudia Fernández‐González, Luke Alexander Turnbull, Sebastian Wintz, Markus König, Simone Finizio, Markus Weigand, Naëmi Leo, Dieter Suess, Aurelio Hierro‐Rodríguez, Amalio Fernández‐Pacheco, Claire Donnelly   +15 more
wiley   +1 more source

Host–guest complexation‐induced chirality switching of pillararenes by perylene diimide‐based hexagonal metallacages

Aggregate
Chirality in confined nanospaces has brought some new insights into chirality transfer, amplification, and chiroptical properties. However, chirality switching, which is a common phenomenon in biological systems, has never been realized in confined ...
Yali Hou, Chaoqun Mu, Yunzhi Shi, Zeyuan Zhang, Haifei Liu, Zilin Zhou, Sanliang Ling, Bingbing Shi, Xianglong Duan, Cheng Yang, Mingming Zhang   +10 more
doaj   +1 more source