Results 291 to 300 of about 1,687,501 (356)

High‐Entropy Magnetism of Murunskite

Advanced Functional Materials, EarlyView.
The study of murunskite (K2FeCu3S4) reveals that its magnetic and orbital order emerges in a simple I4/mmm crystal structure with complete disorder in the transition metal positions. Mixed‐valence Fe ions randomly occupy 1/4 of the tetrahedral sites, with the remaining 3/4 being filled by non‐magnetic Cu+ ions.
Davor Tolj, Priyanka Reddy, Ivica Živković, Luka Akšamović, Jian Rui Soh, Kamila Komȩdera, Izabela Biało, Naveen Kumar Chogondahalli Muniraju, Trpimir Ivšić, Mario Novak, Oksana Zaharko, Clemens Ritter, Thomas LaGrange, Wojciech Tabiś, Ivo Batistić, László Forró, Henrik M. Rønnow, Denis K. Sunko, Neven Barišić   +18 more
wiley   +1 more source

Gd‐Induced Oxygen Vacancy Creation Activates Lattice Oxygen Oxidation for Water Electrolysis

Advanced Functional Materials, EarlyView.
DFT calculations shows that Gd incorporation into Fe‐doped NiO raises the O 2p band center, lowers oxygen vacancy formation energy, and thus promotes the LOM mechanism for OER. Gd and Fe co‐doped NiO nanosheets synthesized via spray combustion exhibits a low overpotential of 227 mV and maintains stable AEMWE performance for over 120 h, demonstrating ...
Yong Wang, Yadong Liu, Sijia Liu, Yunpu Qin, Jianfang Liu, Xue Jia, Qiuling Jiang, Xuan Wang, Yongzhi Zhao, Luan Liu, Hongru Liu, Hong Zhao, Yirui Jiang, Dong Liang, Haoyang Wu, Baorui Jia, Xuanhui Qu, Hao Li, Mingli Qin   +18 more
wiley   +1 more source

Transmission Electron Microscopy [PDF]

, 1996
We wrote it to be read by, and taught to, senior undergraduates and starting graduate students, rather than studied in a research laboratory. We wrote it using the same style and sentence construction that we have used in countless classroom lectures, rather than how we have written our countless (and much-less read) formal scientificpapers.
David B. Williams, C. Barry Carter
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Transmission Electron Microscopy

Microelectronics Failure Analysis, 2019
Electron microscopy is a versatile scientific technique used in the investigation and characterization of materials science, biology, and life science. The principle of electron microscopy is similar to optical microscopy but uses electrons to illuminate and magnify specimens instead of light.
Swaminathan Subramanian, Raghaw S. Rai
semanticscholar   +7 more sources

Scanning Transmission Electron Microscopy

Definitions, 2008
The scanning transmission electron microscope () has become one of the preeminent instruments for high spatial resolution imaging and spectroscopy of materials, most notably at atomic resolution. The principle of STEM is quite straightforward. A beam of electrons is focused by electron optics to form a small illuminating probe that is raster-scanned ...
P. Nellist
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Transmission Electron Microscopy

2008
Particle Optics of Electrons.- Wave Optics of Electrons.- Elements of a Transmission Electron Microscope.- Electron-Specimen Interactions..- Scattering and Phase Contrast.- Theory of Electron Diffraction.- Electron-Diffraction Modesand Applications ...
Lin Li, Ashok Kumar, Sam Zhang
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Transmission Electron Microscopy

Current Protocols in Microbiology, 2006
AbstractTransmission electron microscopy has long been an important analytical tool in the field of microbiology. This unit describes preparation techniques for examining particulate samples as well as samples presenting more complex ultrastructural considerations that require analysis in thin sections.
Robert C. Burghardt, Robert E. Droleskey
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Transmission electron microscopy

2003
This chapter focuses on the direct beam and elastically scattered beams which form different contrast images and electron diffraction patterns. In respect that the contact loading affects only a very small volume of material and, compared with all other techniques, the transmission electron microscopy (TEM) is the instrument of choice due to its ...
Daibin Ge, Yury Gogotsi
  +8 more sources

Transmission Electron Microscopy of Bone

2011
This chapter describes procedures to process mineralized tissues obtained from different sources for transmission electron microscopy (TEM). Methods for fixation, resin embedding, staining of semi-thin sections and ultrathin sections are presented. In addition, attention will be paid to processing of cultured bone explants for TEM analysis.
Everts, V., Niehof, A., Tigchelaar-Gutter, W., Beertsen, W.   +3 more
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Transmission electron microscopy

2013
Transmission electron microscopy (TEM) is a significant tool in demonstrating the ultrastructure of cells and tissues both in normal and disease states. In particular, TEM can be crucial in the diagnosis of various renal pathologies, the recognition of subcellular structural defects or the deposition of extracellular material (e.g.
Anthony E. Woods, John W. Stirling
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