Results 61 to 70 of about 33,900 (299)

Heterogeneous nucleation of pits via step pinning during Si(100) homoepitaxy

New Journal of Physics, 2017
Using scanning tunneling microscopy (STM), we investigate oxide-induced growth pits in Si thin films deposited by molecular beam epitaxy. In the transition temperature range from 2D adatom islanding to step-flow growth, systematic controlled air leaks ...
E N Yitamben, R E Butera, B S Swartzentruber, R J Simonson, S Misra, M S Carroll, E Bussmann   +6 more
doaj   +1 more source

Critical State in Thin Anisotropic Superconductors of Arbitrary Shape

, 2000
A thin flat superconductor of arbitrary shape and with arbitrary in-plane and out-of-plane anisotropy of flux-line pinning is considered, in an external magnetic field normal to its plane.
A. M. Campbell, A. Perez-Gonzalez, B. J. Jönsson-Åkerman, D. V. Shantsev, D. V. Shantsev, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. H. Brandt, E. Zeldov, E. Zeldov, Ernst Helmut Brandt, G. P. Mikitik, G. P. Mikitik, Grigorii P. Mikitik, I. M. Babich, I. M. Babich, I. M. Babich, J. McDonald, J. R. Clem, J. R. Clem, J. W. Barrett, L. Prigozhin, L. W. Conner, M. Benkraouda, M. Tachiki, M. V. Indenbom, P. N. Mikheenko, R. Labusch, T. B. Doyle, Th. Schuster, Th. Schuster   +46 more
core   +1 more source

Pinning dependent field driven domain wall dynamics and thermal scaling in an ultrathin Pt/Co/Pt magnetic film [PDF]

, 2014
Magnetic field-driven domain wall motion in an ultrathin Pt/Co(0.45nm)/Pt ferromagnetic film with perpendicular anisotropy is studied over a wide temperature range.
Bustingorry, S., Ferré, J., Giamarchi, T., Gorchon, J., Jeudy, V., Kolton, A. B.   +5 more
core   +4 more sources

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

Advanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir, Jixing Lin, Yuncang Li, Li Zhu, Paul F. A. Wright, Cuie Wen   +5 more
wiley   +1 more source

Flux pinning

, 2020
Type II superconductors with high upper critical fields H c2 have considerable potential for practical applications, including high magnetic field solenoids, permanent magnets and energy storage devices, as well as magnetic field detectors (SQUID's) and superconducting components for electronics and communications.
van Der Beek, C., Kes, P.
openaire   +1 more source

Vortex pinning and flux flow microwave studies of coated conductors

, 2019
Demanding microwave applications in a magnetic field require the material optimization not only in zero-field but, more important, in the in-field flux motion dominated regime.
Alimenti, Andrea, Celentano, Giuseppe, Mancini, Alessandra, Pompeo, Nicola, Silva, Enrico, Torokhtii, Kostiantyn   +5 more
core   +1 more source

In Situ Micromechanical Study of Bimodal γ′–γ″ Precipitate Assemblies in Ni–Cr–Al–Nb Superalloy

Advanced Engineering Materials, EarlyView.
A Ni–Cr–Al–Nb superalloy with a bimodal γ′–γ″ precipitate distribution is developed. Composite precipitate assemblies form through heterogeneous nucleation, effectively impeding dislocation motion. Micropillar compression reveals high strength at room and elevated temperatures, governed by precipitate shearing, with coupled faulting mechanisms ...
Ujjval Bansal, Tae‐Hyeok Kang, Pyuck‐Pa Choi, Subin Lee, Christoph Kirchlechner   +4 more
wiley   +1 more source

Comparison of Commercial REBCO Tapes Through Flux Pinning Energy

Crystals
This work presents a comparison of different commercial tapes belonging to the second-generation High-Temperature Superconductors (2G HTS) produced by SuNAM Co., Ltd., SuperOx, and Shanghai Superconductors Technology Co., Ltd. (SST) companies. The aim is
Masood Rauf Khan, Antonio Leo, Andrea Masi, Achille Angrisani Armenio, Andrea Augieri, Giuseppe Celentano, Armando Galluzzi, Massimiliano Polichetti, Angela Nigro, Gaia Grimaldi   +9 more
doaj   +1 more source

Mobile fluxons as coherent probes of periodic pinning in superconductors

Scientific Reports, 2017
The interaction of (quasi)particles with a periodic potential arises in various domains of science and engineering, such as solid-state physics, chemical physics, and communication theory.
Oleksandr V. Dobrovolskiy, Michael Huth, Valerij A. Shklovskij, Ruslan V. Vovk   +3 more
doaj   +1 more source

Influence of adding BaSnO3 nanoparticles on magnetic transport properties for CuTl-1223 phase

Results in Physics, 2017
Co-precipitation method and solid-state reaction technique were used to synthesize BaSnO3 nanoparticles and (BaSnO3)x/Cu0.5Tl0.5Ba2Ca2Cu3O10−δ samples, 0.00 ≤ x ≤ 1.50 wt%, respectively. All samples were characterized using X-ray powder diffraction (XRD)
M.ME. Barakat
doaj   +1 more source