Results 31 to 40 of about 345,502 (292)

Two regimes for effects of surface disorder on the zero-bias conductance peak of tunnel junctions involving d-wave superconductors

, 2004
Impurity-induced quasiparticle bound states on a pair-breaking surface of a d-wave superconductor are theoretically described, taking into account hybridization of impurity- and surface-induced Andreev states.
A. M. Dyugaev, A. Poenicke, A. V. Balatsky, E. M. Baskin, E. M. Baskin, F. J. Culetto, I. S. Burmistrov, J. W. Ekin, L. Alff, L. Alff, M. Covington, S. H. Pan, T. Löfwander, Yu. N. Ovchinnikov, Yu. N. Ovchinnikov, Yu. S. Barash, Yu. S. Barash   +16 more
core   +1 more source

Impurity transport in temperature gradient driven turbulence [PDF]

, 2011
In the present paper the transport of impurities driven by trapped electron (TE) mode turbulence is studied. Non-linear (NL) gyrokinetic simulations using the code GENE are compared with results from quasilinear (QL) gyrokinetic simulations and a ...
A. Skyman, H. Nordman, Helander P., P. Strand   +3 more
core   +2 more sources

Quarantäne, Einsamkeit und Psalmen

HTS Teologiese Studies/Theological Studies, 2020
Quarantine, loneliness and psalms: In times of a pandemic, quarantine and physical distance are acts of charity. Leviticus 13–14 show that even in biblical times such measures served to protect the community.
Till M. Steiner
doaj   +1 more source

Localized Spins on Graphene

, 2008
The problem of a magnetic impurity, atomic or molecular, absorbed on top of a carbon atom in otherwise clean graphene is studied using the numerical renormalization group.
Balseiro, C. A., Cornaglia, P. S., Usaj, Gonzalo   +2 more
core   +1 more source

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

Effects of Impurities and Deformations on Electronic Effective Mass in Quantum Revival Time within the Infinite Square Well

Universe
Quantum revival phenomena, wherein the wave function of a quantum system periodically returns to its initial state after evolving in time, are investigated in this study.
Cleverson Filgueiras, Luiz H. C. Borges, Moises Rojas   +2 more
doaj   +1 more source

Local Time-Reversal Symmetry Breaking in d_(x2-y2) Superconductors

, 1999
We show that an isolated impurity in a spin singlet d_{x2-y2} superconductor generates a d_{xy} order parameter with locally broken time-reversal symmetry.
A. V. Balatsky, A. V. Balatsky, A. V. Balatsky, A. V. Balatsky, A. Yazdani, A. Yazdani, C. Grimaldi, C. H. Choi, C. H. Choi, D. Rainer, D. Van Harlingen, E. Thuneberg, E. Thuneberg, E. W. Hudson, H. Burkhardt, J. A . Sauls, K. Yosida, L. J. Buchholtz, M. Covington, M. E. Simon, M. Fogelström, M. Franz, M. I. Salkola, M. J. Graf, R. Movshovich, Y. S. Barash   +25 more
core   +1 more source

Numerical renormalization group calculation of impurity internal energy and specific heat of quantum impurity models [PDF]

, 2012
We introduce a method to obtain the specific heat of quantum impurity models via a direct calculation of the impurity internal energy requiring only the evaluation of local quantities within a single numerical renormalization group (NRG) calculation for ...
A. C. Hewson, H. B. Callen, L. Merker, P. Hänggi, T. A. Costi, U. Weiss   +5 more
core   +2 more sources

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

Advanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira, Marcella Gaute Cavalcante Xavier, Abdoul‐Aziz Bogno, Piter Gargarella, José Eduardo Spinelli   +4 more
wiley   +1 more source

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert, Matheus Roberto Bellé, Anton Yehorov, Anhelina Mospan, Till M. J. Stadtmüller, Seetharaman Sridhar, Christos G. Aneziris, Olena Volkova   +7 more
wiley   +1 more source