Results 31 to 40 of about 4,399 (209)

Synthesis of magnetic Fe and Co nano-whiskers and platelets via physical vapor deposition

Materials & Design, 2021
Fe and Co nano-whiskers and Co platelets were synthesized via physical vapor deposition without any template and catalyst. Transmission electron microscopic analyses revealed that the Fe whiskers were all single crystal with whisker axis along [1 0 0 ...
Wenting Huang, Christophe Gatel, Zi-An Li, Gunther Richter   +3 more
doaj   +1 more source

Holography Electron Microscope.

Journal of the Japan Society for Precision Engineering, 1991
PURPOSE:To obtain a contour map of a sample under observation instantly by calculating for display on a CRT the output of a television camera picking up a hologram image and the output of a linear stripe image generator capable of optionally selecting the direction and distance of a linear stripe pattern.
openaire   +2 more sources

Fine electron biprism on a Si-on-insulator chip for off-axis electron holography

, 2017
Off-axis electron holography allows both the amplitude and the phase shift of an electron wavefield propagating through a specimen in a transmission electron microscope to be recovered.
Helmut Soltner, Florian Winkler, Dunin-Borkowski, Rafal E., David Cooper, Dunin-Borkowski, Rafal, Rolf Speen, Olivier Girard, Soltner, Helmut, Giulio Pozzi, Girard, Olivier, Pozzi, Giulio, Winkler, Florian, Martial Duchamp, Speen, Rolf, Rafal E. Dunin-Borkowski, Cooper, David, Duchamp, Martial   +16 more
core   +1 more source

Impedance of Nonelectroneutral Solid Electrolyte Interphases With Nanopores: A Theoretical Model

Advanced Science, EarlyView.
Physical modeling reveals that often‐neglected non‐electroneutrality and nanopores in the solid‐electrolyte interphase (SEI) govern the impedance behavior. Under nonreactive conditions, the low‐frequency constant‐phase element (CPE) phenomenon can be attributed to the nonelectroneutral local conditions in the SEI.
Chenkun Li, Jun Huang
wiley   +1 more source

Electron Holography: phases matter [PDF]

Microscopy, 2013
Essentially, all optics is wave optics, be it with light, X-rays, neutrons or electrons. The information transfer from the object to the image can only be understood in terms of waves given by amplitude and phase. However, phases are difficult to measure: for slowly oscillating waves such as sound or low-frequency electromagnetic waves, phases can be ...
openaire   +2 more sources

Recent Advances in Programmable Metasurfaces and Meta‐Devices

Advanced Electronic Materials, EarlyView.
Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao, Chong He, Nan Wang, Liming Si, Weiren Zhu   +4 more
wiley   +1 more source

Attosecond time-resolved photoelectron holography

Nature Communications, 2018
Field induced tunneling is one of the fundamental processes of light-matter interaction. Here the authors reconstruct the  temporal properties of tunneling using two-color electron holography with attosecond time resolution using argon atoms.
G. Porat, G. Alon, S. Rozen, O. Pedatzur, M. Krüger, D. Azoury, A. Natan, G. Orenstein, B. D. Bruner, M. J. J. Vrakking, N. Dudovich   +10 more
doaj   +1 more source

2D Materials Empowered Radar Absorbing Materials: A Review

Advanced Electronic Materials, EarlyView.
Recent progress in 2D materials empowered radar absorbing materials (RAMs) is reviewed, highlighting four key structural design strategies that enhance electromagnetic wave absorption. Porous structures, heterogeneous interfaces, printed metamaterials, and tunable metasurfaces are compared in terms of their governing physics, fabrication complexity ...
Yujie Zhong, Shuncong Zhong, Yi Huang, Shan‐Tung Tu, Minghong Wu   +4 more
wiley   +1 more source

High‐Density Nanopore Confined Vortical Dipoles and Magnetic Domains on Hierarchical Macro/Meso/Micro/Nano Porous Ultra‐Light Graphited Carbon for Adsorbing Electromagnetic Wave

Advanced Science, 2023
Atomic‐level structural editing is a promising way for facile synthesis and accurately constructing dielectric/magnetic synergistic attenuated hetero‐units in electromagnetic wave absorbers (EWAs), but it is hard to realize.
Wenhuan Huang, Xingxing Zhang, Jiamin Chen, Qiang Qiu, Yifan Kang, Ke Pei, Shouwei Zuo, Jincang Zhang, Renchao Che   +8 more
doaj   +1 more source

Advancing Energy Materials by In Situ Atomic Scale Methods

Advanced Energy Materials, Volume 15, Issue 11, March 18, 2025.
Progress in in situ atomic scale methods leads to an improved understanding of new and advanced energy materials, where a local understanding of complex, inhomogeneous systems or interfaces down to the atomic scale and quantum level is required. Topics from photovoltaics, dissipation losses, phase transitions, and chemical energy conversion are ...
Christian Jooss, Michael Seibt, Martin Wenderoth, Oliver Bünermann, Ole Bunjes, Till Domröse, Christian Eckel, Francesca Falorsi, Christoph Flathmann, Monica Kolek Martinez de Azagra, Matthias Krüger, Jonas Lindner, Tobias Meyer, Claus Ropers, Ulrich Ross, Kai Rossnagel, Sreeju Sreekantan Nair Lalithambika, Simone Techert, Georg A. Traeger, Cynthia Volkert, R. Thomas Weitz, Alec M. Wodtke   +21 more
wiley   +1 more source