Results 41 to 50 of about 9,972 (221)

Magnetic Bistability and Controllable Reversal of Asymmetric Ferromagnetic Nanorings [PDF]

Physical Review Letters, 2006
16 pages, 4 ...
Zhu, F. Q., Chern, G. W., Tchernyshyov, O., Zhu, X. C., Zhu, J. G., Chien, C. L.   +5 more
openaire   +3 more sources

Photon Avalanching Nanoparticles: The Next Generation of Upconverting Nanomaterials?

Advanced Functional Materials, EarlyView.
This Perspective outlines the mechanistic foundations that enable photon‐avalanche (PA) behavior in lanthanide nanomaterials and contrasts them with emerging application spaces and forward‐looking design strategies. By bridging threshold engineering, energy‐transfer dynamics, and materials engineering, we provide a coherent roadmap for advancing the ...
Kimoon Lee, Yunseo Kim, Hyeong‐ku Jo, Dongjoon Yoon, Byeonghyeok Im, WonJeong Yu, Eui‐Rim On, Changhwan Lee   +7 more
wiley   +1 more source

Enhanced Optical Bistability of a Metasurface Based on Asymmetrically Optimized Mirror-Induced Magnetic Anapole States

Applied Sciences
In the field of modern optical computing and communication, optical bistability plays a crucial role. With a weak third-order nonlinear coefficient, low switch thresholds of optical bistability from Si-based nanophotonic structures remain a challenge. In
Rui Xu, Sen Tian, Yujia Wen, Guoxiong Cai   +3 more
doaj   +1 more source

Dynamic instabilities in resonant tunneling induced by a magnetic field

, 1997
We show that the addition of a magnetic field parallel to the current induces self sustained intrinsic current oscillations in an asymmetric double barrier structure. The oscillations are attributed to the nonlinear dynamic coupling of the current to the
A. Zaslavsky, A. Zaslavsky, B. Ricco, C. Zhang, D. Yoshioka, E. Anda, F. Claro, G. Jona-Lasinio, L. Eaves, L. L. Chang, P. Orellana, P. Orellana, R. Mains, T. C. L. G. Sollner, V. J. Goldman, V. J. Goldman   +15 more
core   +1 more source

Magnetohydrodynamic convectons [PDF]

, 2011
Numerical continuation is used to compute branches of spatially localized structures in convection in an imposed vertical magnetic field. In periodic domains with finite spatial period, these branches exhibit slanted snaking and consist of localized ...
Bergeon, Alain, Knobloch, Edgar, Lo Jacono, David   +2 more
core   +2 more sources

Bistable electron magnetic resonance in solids

Comptes Rendus. Chimie, 2004
This paper describes the phenomenon of Bistable Electron Magnetic Resonance, which manifests itself by a resonance line with a distorted shark fin-like shape. This effect requires only a fluctuating hyperfine interaction between electron spins and nuclear spins.
Didier Gourier, Laurent Binet, Olivier Guillot-Noël   +2 more
openaire   +1 more source

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

Advanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez, Alejandro Orellana‐Silla, Marta Galbiati, Efrén Navarro‐Moratalla, Luca Braglia, Sara Stolfi, José Antonio Real, Víctor Rubio‐Giménez, Sergio Tatay, Carlos Martí‐Gastaldo   +9 more
wiley   +1 more source

Chirality-mediated bistability and strong frequency downshifting of the gyrotropic resonance of a dynamically de-stiffened magnetic vortex

, 2017
We demonstrate an enhanced, bidirectional, in-plane magnetic field tuning of the gyrotropic resonance frequency of a magnetic vortex within a disk by introducing a flat edge.
Anane, Abdelmadjid, Cros, Vincent, Deranlot, Cyrile, Fried, Jasper, Metaxas, Peter, Sushruth, Manu, Xavier, Stephane   +6 more
core   +1 more source

Field‐Effect Transistors from Artificial Charged Domain Walls in Stacked Van der Waals Ferroelectric α‐In2Se3

Advanced Materials, EarlyView.
This study utilizes the van der Waals stacking of ferroelectric α$\alpha$‐In2Se3 to fabricate in‐plane artificial charged domain walls. These charged domain walls are electrically accessible, gate‐tunable, and show 2–9 orders of magnitude higher conductance than charged domain walls from thin film ferroelectrics, allowing their integration in field ...
Shahriar Muhammad Nahid, Haiyue Dong, Gillian M. Nolan, SungWoo Nam, Nadya Mason, Pinshane Y. Huang, Arend M. van der Zande   +6 more
wiley   +1 more source

Electronic structure of mononuclear and radical-bridged dinuclear cobalt(II) single-molecule magnets

Nature Communications
Metal-organic compounds that feature magnetic bistability have been proposed as bits for magnetic storage, but progress has been slow. Four-coordinate cobalt(II) complexes feature high inversion barriers of the magnetic moment, but they lack magnetic ...
David Hunger, Julia Netz, Simon Suhr, Komalavalli Thirunavukkuarasu, Hans Engelkamp, Björn Fåk, Uta Albold, Julia Beerhues, Wolfgang Frey, Ingo Hartenbach, Michael Schulze, Wolfgang Wernsdorfer, Biprajit Sarkar, Andreas Köhn, Joris van Slageren   +14 more
doaj   +1 more source