Results 231 to 240 of about 1,984,443 (291)

Energetic Offset in Organic Solar Cells‐ Importance, Confusion and Outlook

Advanced Materials, EarlyView.
Energetic offsets in organic solar cells (OSCs) remain a subject of debate due to measurement‐ and lab‐dependent discrepancies. This Perspective clarifies the physical origins of these variations and identifies temperature‐dependent electro‐optical methods as a reliable approach to obtain consistent offset values.
Nakul Jain, Xian'e Li, Mats Fahlman, Olle Inganäs, Koen Vandewal, Feng Gao   +5 more
wiley   +1 more source

Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses

Advanced Materials, EarlyView.
Itinerant ferromagnetic flat bands are demonstrated in GdCo5 with a high Curie temperature of 940K, a stacked honeycomb–kagome lattice, through angle‐resolved photoemission spectroscopy and magneto‐thermoelectric measurements. These topological flat bands generate large Berry curvaturte, producing gigantic anomalous Nernst effect with record‐high ...
Susumu Minami, Yangming Wang, Seigo Souma, Hiroto Nakamura, Akito Sakai, Takumi Osumi, Hang Su, Hikaru Watanabe, Shun'ichiro Kurosawa, Rikuto Oiwa, Daisuke Nishio‐Hamane, Kosuke Nakayama, Takuya Nomoto, Ryotaro Arita, Takafumi Sato, Satoru Nakatsuji   +15 more
wiley   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

Advanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng, Peng Zhang, Gang Qiu, Ting‐Hsun Yang, Chang Niu, Yaochen Li, Wenqiang Cui, Yang Feng, Peide D. Ye, Ke He, Kai Chang, Kang L. Wang   +11 more
wiley   +1 more source

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Control of a Beam of Electrons by an Intersecting Electron Beam

Nature, 1949
IF an electron is sent across a beam of electrons the chance is very small that it will pass a single electron of the beam so closely as to cause any deflexion of consequence from its original path. In a beam that has a current-density of 100 mA./cm.2 and a velocity of 100 electron-volts, the electron density is such that it contains 109 electrons per ...
J. L. H. JONKER, A. J. W. M. VAN OVERBEEK   +1 more
openaire   +1 more source

Electrons and Electron Beams

1984
When a plastic ruler is placed near some very tiny pieces of paper, it will not have any effect on them. However, if the ruler is rubbed with a duster, it is found that the pieces of paper are attracted to the ruler. This difference in behaviour is explained by saying that the ruler has become electrically charged when rubbed with the duster.
H. J. P. Keighley, F. R. McKim, A. Clark, M. J. Harrison   +3 more
openaire   +1 more source

Electron-Beam Radiographs

Radiology, 1978
Good portal films can be obtained if the film is left in position throughout the daily fraction. Such films can delineate the outlines of the treatment field as well as the internal structures, making them valuable for future reference.
openaire   +2 more sources

Assurance of the electron beam positioning accuracy at electron beam welding

2014 23rd International Conference on Robotics in Alpe-Adria-Danube Region (RAAD), 2014
The control algorithm of a manipulator output member positioning process is given in the paper for path following based on the developed mathematical model of accounting the kinematic and dynamical characteristics of manipulators included into an automatic electron beam production complex (AEBPC).
Yu. V. Turygin, Yu. V. Zubkova, René Hartanský   +2 more
openaire   +2 more sources

Electron-electron interaction in ballistic electron beams

Physical Review B, 1995
The transport of ballistic electrons emitted and detected by adjacent point contacts in a two-dimensional electron gas (2DEG) in the system GaAs/${\mathrm{Al}}_{\mathit{x}}$${\mathrm{Ga}}_{1\mathrm{\ensuremath{-}}\mathit{x}}$As was measured at 1.2 K as a function of the emitter current.
, Müller, , Lengeler, , Schäpers, , Appenzeller, , Förster, , Klocke, , Lüth   +6 more
openaire   +2 more sources

Electron beam physics

2012
Abstract This chapter, ‘Electron beam physics’, covers the physics of electrons, the predominant charged particle used in radiotherapy with an outline of the clinical applications. The chapter describes the dose distribution of electron beams with a detailed description and explanation of the depth dose curve and how this is influenced ...
Nisbet, A, Pitchford, G
openaire   +2 more sources

Electron Cooling with an Ultracold Electron Beam

Physical Review Letters, 1994
The efficiency of electron cooling can be improved by adiabatically expanding the electron beam in a decreasing magnetic field, thereby lowering the transverse electron temperature. An electron beam expanded by a factor of 10 has been implemented at the CRYRING electron cooler, decreasing the transverse electron temperature from 100 to 10 meV. This has
, Danared, , Andler, , Bagge, , Herrlander, , Hilke, , Jeansson, , Källberg, , Nilsson, , Paál, , Rensfelt, , Rosengård, , Starker, , af Ugglas M   +12 more
openaire   +2 more sources