Results 61 to 70 of about 17,301 (287)

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

Strong interfacial Dzyaloshinskii–Moriya induced in Co due to contact with NiO

Scientific Reports, 2022
The magnetic properties of NiO/Co/Pt as a function of Co layer thickness were investigated by polar magneto-optical Kerr effect (PMOKE) (magnetometry and microscopy) and Brillouin Light Scattering (BLS) spectroscopy.
M. Kowacz, P. Mazalski, I. Sveklo, M. Matczak, B. Anastaziak, U. Guzowska, A. K. Dhiman, E. Madej, A. Maziewski, P. Kuświk, R. Gieniusz   +10 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

Curvilinear magnetic effects in helicoid nanotubes

npj Spintronics
We report the fabrication and characterization of ferromagnetic helicoid nanotubes with a tunable surface curvature and chirality. Through combining focused electron beam induced deposition and magnetron sputtering we realize these complex curvilinear ...
John Fullerton, Charudatta Phatak
doaj   +1 more source

Multifunctional Gold Nanocluster‐Based PROTAC System for Targeted Degradation of Phosphorylated Tau and Modulation of Neuroinflammation in Alzheimer's Disease

Advanced Functional Materials, EarlyView.
We present a novel proteolysis‐targeting chimera (PROTAC) system conjugated to lipoic acid gold nanoclusters (PLANC), designed to degrade pTau, regulate inflammatory signaling, and effectively traverse the blood‐brain barrier (BBB). PLANC degraded pTau at various phosphorylation sites, with mechanistic studies confirming proteasome‐mediated degradation
Sarah Nevins, Callan D. McLoughlin, Wan‐Kyu Ko, Hye Kyu Choi, Brandon Conklin, Joshua B. Stein, Yannan Hou, Hongwon Kim, Rohan Khulbe, Ki‐Bum Lee   +9 more
wiley   +1 more source

Multidimensional Cellular Micro‐Compartments to Model Invasive Lobular Carcinoma Dormancy

Advanced Healthcare Materials, EarlyView.
Invasive lobular carcinoma (ILC) is an understudied subtype of breast cancer that is susceptible to late recurrences. In this study, micro‐compartmentalization techniques spanning multiple dimensions, including 2D, pseudo‐3D, and 3D, are integrated to uncover the mechanisms underlying ILC dormancy, revealing the central role of p27Kip1.
Xilal Y. Rima, Sarmila Majumder, Divya S. Patel, Chunyu Hu, Hong Li, Xin Huang, Kim Truc Nguyen, Jacob Doon‐Ralls, Chiranth K. Nagaraj, Mangesh D. Hade, Setty M. Magaña, Eswar Shankar, Xiaoli Zhang, Daniel G. Stover, Bhuvaneswari Ramaswamy, Eduardo Reátegui   +15 more
wiley   +1 more source

Quantum frequency doubling in the topological insulator Bi2Se3

Nature Communications, 2021
Berry curvature dipole (BCD) leads to the nonlinear Hall effect manifested as a frequency doubling in topological materials. Here, the authors report electric frequency doubling in the absence of BCD and magnetic field on a surface of Bi2Se3 due to skew ...
Pan He, Hiroki Isobe, Dapeng Zhu, Chuang-Han Hsu, Liang Fu, Hyunsoo Yang   +5 more
doaj   +1 more source

Controlled synthesis of single-chirality carbon nanotubes [PDF]

, 2014
Over the past two decades, single-walled carbon nanotubes (SWCNTs) have received much attention because their extraordinary properties are promising for numerous applications.
Roman Fasel, Thomas Dienel, Sanchez-Valencia, Juan Ramon, Mueller, Andreas, Ivan Shorubalko, Sánchez-Valencia, J. R., Oliver Gröning, Ruffieux, P., Dienel, Thomas, Juan Ramon Sanchez-Valencia, Andreas Mueller, Mueller, A., Gröning, Oliver, Pascal Ruffieux, Jansen, M., Martin Jansen, Amsharov, K., Konstantin Amsharov, Shorubalko, Ivan, Sánchez Valencia, Juan Ramón, Jansen, Martin, Fasel, Roman, Ruffieux, Pascal, Fasel, R., Amsharov, Konstantin   +24 more
core   +1 more source

Surface states and chiral symmetry on the lattice [PDF]

Physical Review D, 1994
In a Hamiltonian formalism we study chiral symmetry for lattice Fermions formulated in terms of Shockley surface states bound to a wall in an extra spatial dimension. For hadronic physics this provides a natural scheme for taking quark masses to zero without requiring a precise tuning of parameters.
Creutz, Michael, Horvath, Ivan
openaire   +3 more sources

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