Results 81 to 90 of about 836,069 (296)

Spin pumping in ferromagnet-topological insulator-ferromagnetheterostructures [PDF]

, 2015
Topological insulators (TIs) are enticing prospects for the future of spintronics due to their large spin-orbit coupling and dissipationless, counter-propagating conduction channels in the surface state.
Baker, A. A., Collins-Mcintyre, Liam, van der Laan, G., Hesjedal, Thorsten, Figueroa, A. I., Collins-Mcintyre, L. J., Baker, Alexander, Hesjedal, T., Figueroa, A.I.   +8 more
core   +1 more source

From Photoalignment to Structured Light: Liquid Crystal Platforms for Beam Shaping and Complex Wavefronts

Advanced Functional Materials, EarlyView.
Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou, Tingjun Zhong, Sijie Liu, Pouya Nosratkhah, Ke Xu, Yuzhen Zhao, Kristiaan Neyts   +6 more
wiley   +1 more source

Effect of topological defects on graphene geometry and stability

Nanotechnology, Science and Applications, 2010
Ibolya ZsoldosFaculty of Technology Sciences, Szechenyi Istvan University, Gyor, HungaryAbstract: The effect of two basic topological defects, mitosis and the Stone–Wales defect, is studied in the graphene structure.
Ibolya Zsoldos
doaj  

Topology of vibrational modes predicts plastic events in glasses

Nature Communications, 2023
The plastic deformation of crystalline materials can be understood by considering their structural defects such as disclinations and dislocations. Although also glasses are solids, their structure resembles closely the one of a liquid and hence the ...
Zhen Wei Wu, Yixiao Chen, Wei-Hua Wang, Walter Kob, Limei Xu   +4 more
doaj   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source

Topology of Three-Dimensional Active Nematic Turbulence Confined to Droplets

Physical Review X, 2019
Active nematics contain topological defects that (under sufficient activity) move, create, and annihilate in a chaotic quasi-steady state, called active turbulence.
Simon Čopar, Jure Aplinc, Žiga Kos, Slobodan Žumer, Miha Ravnik   +4 more
doaj   +1 more source

Revisiting thermodynamic topologies of black holes

Journal of High Energy Physics, 2023
In the generalized off-shell free energy landscape, black holes can be treated as thermodynamic topological defects. The local topological properties of the spacetime can be reflected by the winding numbers at the defects, while the global topological ...
Chaoxi Fang, Jie Jiang, Ming Zhang
doaj   +1 more source

Topological defects in an open universe [PDF]

Nuclear Physics B - Proceedings Supplements, 1994
(To appear in Nuclear Physics B Supplements Proceedings section) This talk will explore the evolution of topological defects in an open universe. The rapid expansion of the universe in an open model slows defects and suppresses the generation of CBR fluctuations at large angular scale as does the altered relationship between angle and length in an open
Spergel, David N., Pen, Ue-Li
openaire   +2 more sources

Half-quantum vortices and walls bounded by strings in the polar-distorted phases of topological superfluid 3He

, 2019
| openaire: EC/H2020/694248/EU//TOPVACSymmetries of the physical world have guided formulation of fundamental laws, including relativistic quantum field theory and understanding of possible states of matter.
Rysti, Juho, Alexey, Yudin, Nissinen, Jaakko, Zhang, Kuang, Volovik, Grigory, Mäkinen, Jere, Dmitriev, Vlaidimir, Eltsov, Vladimir   +7 more
core   +1 more source

Spin Dynamics in the van der Waals Ferromagnet CrTe2 Engineered by Niobium Doping

Advanced Functional Materials, EarlyView.
Spin‐dynamic magnetic properties of van der Waals (vdW) ferromagnet 1T‐CrTe2 are tuned via niobium (Nb) as Cr1‐xNbxTe2 (x = 0–0.2). Nb doping enables wide‐band tuning of the resonance frequency from 40 GHz down to the few‐GHz regime, accompanied by a moderate increase in the Gilbert damping from ∼0.066 to ∼0.14.
Dhan Raj Lawati, Prem Bahadur Karki, Jitender Kumar, Karishma Prasad, Mohamed A. Elekhtiar, Kai Huang, Bibek Tiwari, Suvechhya Lamichhane, Rupak Timalsina, Zane Hubble, Ayodimeji E. Aregbesola, John Watt, Sy‐Hwang Liou, Evgeny Y. Tsymbal, Jian Wang, Kapildeb Ambal, Abdelghani Laraoui   +16 more
wiley   +1 more source