Results 101 to 110 of about 2,872,515 (340)

Electron self-trapping in intermediate-valent SmB6

, 1999
SmB6 exhibits intermediate valence in the ground state and unusual behaviour at low temperatures. The resistivity and the Hall effect cannot be explained either by conventional sf-hybridization or by hopping transport in an impurity band.
A. Hasegawa, A. Yanase, B. Gorshunov, B.I. Shklovskii, C. Varma, D.P. Young, E.E. Vainstein, F.C. Zhang, G. Güntherodt, G. Travaglini, H. Harima, H. Ohta, I. Bat’ko, I.G. Lang, J. Neuenschwander, J.C. Cooley, J.C. Cooley, J.C. Nickerson, K. A. Kikoin, K.A. Kikoin, K.A. Kikoin, K.A. Kikoin, K.A. Kikoin, K.A. Kikoin, K.A. Kikoin, K.W.H. Stevens, M. Dressel, N.E. Sluchanko, P.A. Alekseev, R.M. Martin, S. Curnoe, S. Gabáni, S. Massida, S.E. Barnes, T. Kasuya, T. Nanba, T. Portengen, V.I. Belinicher, V.J. Emery, Y. Toyozawa   +39 more
core   +1 more source

Population of Nonmetallic Inclusions in Liquid High‐Silicon Electrical Steel in Contact With MgO–C Refractories Based on Recyclates and Environmentally Friendly Binders

Advanced Engineering Materials, EarlyView.
The formation of nonmetallic inclusions (NMIs) was investigated in this study, carrying out immersion tests for 30 min at a temperature of 1600°C with liquid high‐silicon electrical steel (Si ≈ 3 mass‐%) and different MgO–C refractories. Conventional MgO–C refractories were considered, as well as MgO–C refractories containing MgO–C recyclate and ...
Lukas Neubert, Matheus Roberto Bellé, Florian Kerber, Dinesh Kumar Gunasekar, Hans‐Jörn Weddige, Christos G. Aneziris, Olena Volkova   +6 more
wiley   +1 more source

Conductance through a single impurity in the metallic zigzag carbon nanotube

, 2009
We investigate transport through a single impurity in metallic zigzag carbon nanotube and find the conductance sensitively depends on the impurity strength and the bias voltage.
Chang, Po-Yao, Lin, Hsiu-Hau
core   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Flux-surface variations of the electrostatic potential in stellarators: impact on the radial electric field and neoclassical impurity transport

Plasma Physics and Controlled Fusion, 2018
Flux-surface variations of the electrostatic potential are typically neglected in standard neoclassical theory, but in 3D devices they can be large enough to affect the radial particle flux of impurities.
A. Mollén, M. Landreman, H. Smith, J. M. García-Regaña, M. Nunami   +4 more
semanticscholar   +1 more source

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

Advanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin, Marvin Erck, Kevin Jasutyn, Katja Radermacher, Andreas Bund, Mario Kurniawan   +5 more
wiley   +1 more source

Impurity Conduction and Magnetic Polarons in Antiferromagnetic Oxides

, 2007
Low-temperature transport and magnetization measurements for the antiferromagnets SrMnO(3) and CaMnO(3) identify an impurity band of mobile states separated by energy E from electrons bound in Coulombic potentials.
B. I. Shklovskii, C. Chiorescu, E. Dagotto, E. L. Nagaev, E. L. Nagaev, J. J. Neumeier, J. L. Cohn   +6 more
core   +1 more source

Impurity-band transport in organic spin valves [PDF]

Nature Communications, 2014
The central phenomenon in the field of organic spintronics is the large magnetoresistance in thick organic spin valves. A prerequisite for understanding the magnetoresistance is a reliable description of the device resistance, or the I-V characteristics.
openaire   +3 more sources

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

Advanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

Framework for CO2 impurity monitoring in CCUS infrastructure

Carbon Capture Science & Technology
As Carbon Capture, Utilization, and Storage (CCUS) expands, the need for safe and efficient CO2 transport becomes increasingly important. Effective monitoring of CO2 impurities is essential for maintaining system integrity and ensuring regulatory ...
Kenneth René Simonsen, Dennis Severin Hansen, Simon Pedersen   +2 more
doaj   +1 more source