Results 41 to 50 of about 315,879 (263)

Coherent Electron Focussing in a Two-Dimensional Electron Gas [PDF]

Europhysics Letters (EPL), 1988
The first experimental realization of ballistic point contacts in a two-dimensional electron gas for the study of transverse electron focussing by a magnetic field is reported. Multiple peaks associated with skipping orbits of electrons reflected specularly by the channel boundary are observed.
Houten, H. van, Wees, B.J. van, Mooij, J.E., Beenakker, C.W.J., Williamson, J.G., Foxon, C.T.   +5 more
openaire   +3 more sources

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Pseudo-proper two-dimensional electron gas formation

New Journal of Physics
In spite of the interest in the two-dimensional electron gases (2DEGs) experimentally found at surfaces and interfaces, important uncertainties remain about the observed insulator–metal transitions (IMTs).
Daniel Bennett, Pablo Aguado-Puente, Emilio Artacho, Nicholas C Bristowe   +3 more
doaj   +1 more source

PROTON SCATTERING ON AN ELECTRON GAS

International Journal of Modern Physics A, 2013
It is shown in the case of proton scattering on an electron gas target that the Closed Time Path formalism can handle final state interactions of the target in equilibrium in a simple and natural manner. The leading-order cross-section is proportional to the photon density of states.
Mansouri, F., Polonyi, J., Zazoua, K., Zekri, N.   +3 more
openaire   +2 more sources

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur, Faruk Kaya, Bora Derin, Mustafa Lütfi Öveçoğlu, Ju Li, Duygu Ağaoğulları   +5 more
wiley   +1 more source

Approaching PetaVolts per Meter Plasmonics Using Structured Semiconductors

IEEE Access, 2023
A newly uncovered class of plasmons in the strongly excited limit opens access to unprecedented Petavolts per meter electromagnetic fields with wide-ranging, transformative impact.
Aakash Ajit Sahai, Mark Golkowski, Thomas Katsouleas, Gerard Andonian, Glen White, Chandrashekhar Joshi, Peter Taborek, Vijay Harid, Joachim Stohr   +8 more
doaj   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

Advanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez, Alejandro F. Manchón‐Gordón, Antonio Vidal‐Crespo, Rafael Caballero‐Flores, Jhon J. Ipus, Clara F. Conde   +5 more
wiley   +1 more source

Few-Electron Single and Double Quantum Dots in an InAs Two-Dimensional Electron Gas

PRX Quantum, 2021
Most proof-of-principle experiments for spin qubits have been performed with GaAs-based quantum dots because of the excellent control they offer over tunneling barriers and the orbital and spin degrees of freedom. Here we present the first realization of
Christopher Mittag, Jonne V. Koski, Matija Karalic, Candice Thomas, Aymeric Tuaz, Anthony T. Hatke, Geoffrey C. Gardner, Michael J. Manfra, Jeroen Danon, Thomas Ihn, Klaus Ensslin   +10 more
doaj   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Can electron multipacting explain the pressure rise in a cold bore superconducting undulator?

Physical Review Special Topics. Accelerators and Beams, 2010
Preliminary studies performed with the cold bore superconducting undulator installed in the ANKA (Angstrom source Karlsruhe) storage ring suggest that the beam heat load is mainly due to the electron wall bombardment.
S. Casalbuoni, S. Schleede, D. Saez de Jauregui, M. Hagelstein, P. F. Tavares   +4 more
doaj   +1 more source