Results 61 to 70 of about 570,318 (292)

On the effect of far impurities on the density of states of two-dimensional electron gas in a strong magnetic field

, 2003
The effect of impurities situated at different distances from a two-dimensional electron gas on the density of states in a strong magnetic field is analyzed.
A. M. Dyugaev, E. Brezin, F. Wegner, I. Affleck, I. S. Burmistrov, I. V. Kukushkin, L. B. Ioffe, M. A. Skvortsov, T. Ando, T. Ando, É. M. Baskin   +10 more
core   +2 more sources

Critical dislocation speed in helium-4 crystals [PDF]

, 2013
Our experiments show that in $^4$He crystals, the binding of $^3$He impurities to dislocations does not necessarily imply their pinning. Indeed, in these crystals, there are two different regimes of the motion of dislocations when impurities bind to them.
Balibar, Sébastien, Beamish, John, Fefferman, Andrew, Haziot, Ariel, Maris, Humphrey, Souris, Fabien   +5 more
core   +4 more sources

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Giant Extrinsic Spin Hall Effect due to Rare-Earth Impurities

, 2008
We investigate the extrinsic spin Hall effect in the electron gas model due to magnetic impurities, by focusing on Ce- and Yb-impurities. In the dilute limit, the skew scattering term dominates the side jump term. For Ce-impurities, the spin Hall angle $\
Dyakonov M I, Fert A, Guo G Y Maekawa S Nagaosa N, H Kontani, Hewson A C, Kontani H Tanaka T Hirashima D S Yamada K Inoue J, Otani Y, T Tanaka, Yosida K   +8 more
core   +1 more source

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Effect of quantum interference in the nonlinear conductance of microconstrictions

, 2000
The influence of the interference of electron waves, which were scattered by single impurities, on nonlinear quantum conductance of metallic microconstrictions (as was recently investigated experimentally) is studied theoretically.
A. M. Zagoskin, A. N. Omelyanchouk, A. Namiranian, A. Szafer, B. J. van Wees, B. Ludoph, C. J. Muller, C. Untidt, D. A. Wharam, E. N. Bogachek, I. O. Kulik, I. O. Kulik, I. O. Kulik, I. O. Kulik, J. I. Pascual, L. I. Glazman, N. Agrait, P. A. Lee, P. A. M. Holweg, Y. Imry, Yu. A. Kolesnichenko, Yu. V. Sharvin   +21 more
core   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

Ballistic transport properties in pristine-doped-pristine graphene junctions [PDF]

, 2014
We investigate the ballistic electron transport in a monolayer graphene with configurational averaged impurities, located between two clean graphene leads.
Ardenghi, Juan Sebastian, Bechthold, Pablo, Gonzalez, Estela, Jasen, Paula, Juan, Alfredo   +4 more
core   +2 more sources

Composition‐Tuned Enhancement of the Anomalous Nernst Effect in FeCo–Pt Thin Films on Rigid and Flexible Substrates

Advanced Engineering Materials, EarlyView.
Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi, Hiroyuki Awano, Kenji Tanabe   +2 more
wiley   +1 more source

Impurity study in the dimensionless and dimensional isotope identity experiment between JET Deuterium and Tritium L-mode plasmas

Nuclear Fusion
The behaviour of impurities in fusion plasmas is of crucial importance for achieving sustained fusion reactions, and understanding similarities and differences between Deuterium (D) and Tritium (T) plasmas is needed to assess potential changes from DD to
A. Chomiczewska, T. Tala, W. Gromelski, I. Ivanova-Stanik, E. Kowalska-Strzęciwilk, N. Wendler, I.S. Carvalho, P. Carvalho, I. Coffey, A. Kirjasuo, M. Lennholm, S. Menmuir, G. Pucella, A. Salmi, B. Thomas, JET contributors, the EUROfusion Tokamak Exploitation Team   +16 more
doaj   +1 more source