Zobrazeno 1 - 10
of 208
pro vyhledávání: '"Ackerman, Paul"'
Autor:
Foster, David, Kind, Charles, Ackerman, Paul J., Tai, Jung-Shen B., Dennis, Mark R., Smalyukh, Ivan I.
Skyrmions are particle-like topological excitations, studied in various condensed matter systems and models of high-energy physics (HEP). They occur as stable spin textures in certain planar magnetic materials and as configurations in chiral nematic
Externí odkaz:
http://arxiv.org/abs/1806.02576
Autor:
Mundoor, Haridas, Sheetah, Ghadah. H., Park, Sungoh, Ackerman, Paul J., Smalyukh, Ivan I., van de Lagemaat, Jao
We study the quantum-mechanical effects arising in a single semiconductor core/shell quantum dot controllably sandwiched between two plasmonic nanorods. Control over the position and the sandwich confinement structure is achieved by the use of a line
Externí odkaz:
http://arxiv.org/abs/1712.09506
Autor:
Sohn, Hayley R. O., Ackerman, Paul J., Boyle, Timothy J., Sheetah, Ghadah H., Fornberg, Bengt, Smalyukh, Ivan I.
Publikováno v:
Phys. Rev. E 97, 052701 (2018)
Active colloids and liquid crystals are capable of locally converting the macroscopically-supplied energy into directional motion and promise a host of new applications, ranging from drug delivery to cargo transport at the mesoscale. Here we uncover
Externí odkaz:
http://arxiv.org/abs/1711.01354
Topologically nontrivial field configurations called "baby skyrmions" behave like particles and give origins to the field of skyrmionics that promises racetrack memory and other technological applications. Unraveling the non-equilibrium behavior of s
Externí odkaz:
http://arxiv.org/abs/1706.09514
Autor:
Ackerman, Paul J., Trivedi, Rahul P., Senyuk, Bohdan, van de Lagemaat, Jao, Smalyukh, Ivan I.
Publikováno v:
Phys. Rev. E 90, 012505 (2014)
We explore spatially localized solitonic configurations of a director field, generated using optical realignment and laser-induced heating, in frustrated chiral nematic liquid crystals confined between substrates with perpendicular surface anchoring.
Externí odkaz:
http://arxiv.org/abs/1612.09015
Autor:
Senyuk, Bohdan, Evans, Julian S., Ackerman, Paul J., Lee, Taewoo, Manna, Pramit, Vigderman, Leonid, Zubarev, Eugene R., van de Lagemaat, Jao, Smalyukh, Ivan I.
Publikováno v:
Nano Letters 12, 955-963 (2012)
We demonstrate scaffolding of plasmonic nanoparticles by topological defects induced by colloidal microspheres to match their surface boundary conditions with a uniform far-field alignment in a liquid crystal host. Displacing energetically costly liq
Externí odkaz:
http://arxiv.org/abs/1612.07443
Autor:
Mundoor, Haridas, Lee, Taewoo, Gann, Derek G., Ackerman, Paul J, Senyuk, Bohdan, van de Lagemaat, Jao, Smalyukh, Ivan I.
Publikováno v:
J. Appl. Phys. 116, 063511 (2014)
We present a method to locally probe spatially varying chemical composition of soft matter systems by use of optically controlled and elastically self-assembled plasmonic nanoantennae. Disc-shaped metal particles with sharp irregular edges are optica
Externí odkaz:
http://arxiv.org/abs/1611.09771
Autor:
Chen, Bryan Gin-ge, Ackerman, Paul J., Alexander, Gareth P., Kamien, Randall D., Smalyukh, Ivan I.
Publikováno v:
Phys. Rev. Lett. 110 (2013) 237801
The Hopf fibration is an example of a texture: a topologically stable, smooth, global configuration of a field. Here we demonstrate the controlled sculpting of the Hopf fibration in nematic liquid crystals through the control of point defects. We dem
Externí odkaz:
http://arxiv.org/abs/1212.6688
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, 2018 Jan . 115(5), 921-926.
Externí odkaz:
https://www.jstor.org/stable/26507251
