Zobrazeno 1 - 10
of 819
pro vyhledávání: '"Clark, Noel A."'
Autor:
Hedlund, Keith G., Martinez, Vikina, Chen, Xi, Park, Cheol S., Maclennan, Joseph E., Glaser, Matthew A., Clark, Noel A.
We show that stable, freely suspended liquid crystal films can be made from the ferroelectric nematic ($\mathrm{N_F}$) phase and from the recently discovered polar, lamellar $\mathrm{SmZ_A}$ and $\mathrm{SmA_F}$ phases. The $\mathrm{N_F}$ films displ
Externí odkaz:
http://arxiv.org/abs/2409.04019
We report the observation of a Twist Grain Boundary (TGB) phase of DNA, a striking motif of three dimensional (3D) equilibrium self-assembly of the DNA tetramer 5'-GTAC-3', a base sequence that is self-complimentary, pairing to form 4-base long, blun
Externí odkaz:
http://arxiv.org/abs/2403.07844
Autor:
Thoen, Jan, Cordoyiannis, George, Korblova, Eva, Walba, David M., Clark, Noel A., Jiang, Wanhe, Mehl, Georg H., Glorieux, Christ
The idea that rod-like molecules possessing an electric dipole moment could exhibit a ferroelectric nematic phase was suggested more than a century ago. However, only recently such a phase has been reported for two quite different liquid crystals: RM
Externí odkaz:
http://arxiv.org/abs/2403.01970
The collective behavior of the shortest DNA oligomers in high concentration aqueous solutions is an unexplored frontier of DNA science and technology. Here we broaden the realm of DNA nanoscience by demonstrating that single-component aqueous solutio
Externí odkaz:
http://arxiv.org/abs/2401.00318
Autor:
Zhong, Bingchen, Shuai, Min, Chen, Xi, Martinez, Vikina, Korblova, Eva, Glaser, Matthew A., Maclennan, Joseph E., Walba, David M., Clark, Noel A.
The current intense study of ferroelectric nematic liquid crystals was initiated by the observation of the same ferroelectric nematic phase in two independently discovered organic rod-shaped mesogenic compounds, RM734 and DIO. We recently reported th
Externí odkaz:
http://arxiv.org/abs/2312.17400
Thermotropic reentrant isotropy and antiferroelectricity in the ferroelectric nematic material RM734
Autor:
Chen, Xi, Shuai, Min, Zhong, Bingchen, Martinez, Vikina, Korblova, Eva, Glaser, Matthew A., Maclennan, Joseph E., Walba, David M., Clark, Noel A.
We report a transition from the ferroelectric nematic liquid crystal ($N_F$) phase to a lower-temperature, antiferroelectric fluid phase having reentrant isotropic symmetry ($I_A$), in the liquid crystal compound RM734 doped with small concentrations
Externí odkaz:
http://arxiv.org/abs/2309.04935
Mechanically quenching a thin film of smectic-C liquid crystal results in the formation of a dense array of thousands of topological defects in the director field. The subsequent rapid coarsening of the film texture by the mutual annihilation of defe
Externí odkaz:
http://arxiv.org/abs/2212.00154
Autor:
Le, Khoa V., Tuchband, Michael R., Iwayama, Hiroshi, Takanishi, Yoichi, Clark, Noel A., Araoka, Fumito
Polymorphism, the phenomenon that a species can exist in many discrete forms, is common in nature, such as hair colors in an animal species, flower colors in a tree species, and blood types in humans, etc. In materials science, it refers to a solid t
Externí odkaz:
http://arxiv.org/abs/2210.13544
Autor:
Caimi, Federico, Nava, Giovanni, Fuschetto, Susanna, Lucchetti, Liana, Paiè, Petra, Osellame, Roberto, Chen, Xi, Clark, Noel A., Glaser, Matthew, Bellini, Tommaso
Publikováno v:
Nature Physics 19, (2023) 1658-1666
The combination of large spontaneous polarization and fluidity makes the newly discovered ferroelectric nematic liquid crystalline phase (NF) responsive to electric fields in ways that have no counterpart in other materials. We probe this sensitive f
Externí odkaz:
http://arxiv.org/abs/2210.00886
Publikováno v:
Physical Review Research 6, 013195 (2024)
Numerous measurements of the dielectric constant $\epsilon$ of the recently discovered ferroelectric nematic ($N_F$) liquid crystal (LC) phase report extraordinarily large values of $\epsilon^\prime$ (up to ~30,000). We show that what is in fact bein
Externí odkaz:
http://arxiv.org/abs/2208.09784