Results 71 to 80 of about 2,628,570 (393)

Localization phenomena in models of ion-conducting glass formers

, 2010
The mass transport in soft-sphere mixtures of small and big particles as well as in the disordered Lorentz gas (LG) model is studied using molecular dynamics (MD) computer simulations.
Franosch, Thomas, Horbach, Jürgen, Höfling, Felix, Voigtmann, Thomas   +3 more
core   +1 more source

Dynamics of perpendicular recording heads [PDF]

, 2001
3D modeling and inductance measurements were used to design an ultra-high frequency perpendicular system. Kerr microscopy and spin-stand experiments with focused ion beam (FI-B) trimmed perpendicular heads and perpendicular media directly verified the ...
Bain, J., Chantrell, R.W., Chomko, R., Khizroev, S., Litvinov, D., Svedberg, E., White, R., Wolfson, J.   +7 more
core   +1 more source

A Soft On/Off Switch Based on the Electrochemically Reversible H-J Interconversion of a Floating Porphyrin Membrane [PDF]

, 2021
Andrés F. Molina-Osorio, Sho Yamamoto, Alonso Gamero‐Quijano, Hirohisa Nagatani, Micheál D. Scanlon   +4 more
openalex   +1 more source

Synchrotron Radiation for Quantum Technology

Advanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader, Sakura Pascarelli, Klaus Attenkofer, Anna A. Makarova, Karsten Holldack, Kai Rossnagel, Kristiaan Temst, George Kourousias, Stefano Carretta, Caterina Biscari, Helmut Dosch   +10 more
wiley   +1 more source

New DC/DC High Step Up Isolated Converter with ZVS [PDF]

Journal of Intelligent Procedures in Electrical Technology, 2014
In this paper we presents a soft switch sepic, flyback converter. At first the converter have hard switching in main switch and completely analysis then added auxiliary circuit for soft switching Auxiliary circuit in the converter is not only soft ...
Ehsan Movahedi, Majid Delshad, Ehsan Adib   +2 more
doaj  

A Voltage-Edge-Rate-Limiting Soft-Switching Inverter Based on Auxiliary Resonant Pole

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2019
To increase switching frequencies while limiting switching losses in voltage-source inverters, power switches have been made significantly faster with achievable switching times now less than 100 ns.
Minyu Cai, O. Wasynczuk, M. Saeedifard
semanticscholar   +1 more source

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

Advanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton, Naëmi Leo, Jakub Jurczyk, Claire Donnelly, Dédalo Sanz‐Hernández, Luka Skoric, Nicholas Mille, Stefan Stanescu, Donald A MacLaren, Rachid Belkhou, Aurelio Hierro‐Rodriguez, Amalio Fernández‐Pacheco   +11 more
wiley   +1 more source

Accurate Modeling and Efficiency Optimization of High Frequency BCM Mode Boost Converter Based on GaN Devices

CSEE Journal of Power and Energy Systems
With further population of gallium nitride (GaN) devices, traditional boost topology has an opportunity to obtain a higher power density with a higher switching frequency.
Yifeng Wang, Zhongjie Wang, Bo Chen, Hao Wang   +3 more
doaj   +1 more source

Domain wall switching: optimizing the energy landscape

, 2007
It has recently been suggested that exchange spring media offer a way to increase media density without causing thermal instability (superparamagnetism), by using a hard and a soft layer coupled by exchange. Victora has suggested a figure of merit xi = 2
Butler, W. H., Lu, Zhihong, Visscher, P. B.   +2 more
core   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source