Results 101 to 110 of about 6,224,082 (341)

Antiferromagnetic Domain Wall Motion Driven by Spin-Orbit Torques. [PDF]

Physical Review Letters, 2016
We theoretically investigate the dynamics of antiferromagnetic domain walls driven by spin-orbit torques in antiferromagnet-heavy-metal bilayers. We show that spin-orbit torques drive antiferromagnetic domain walls much faster than ferromagnetic domain ...
T. Shiino, Se-Hyeok Oh, P. Haney, Seo-Won Lee, G. Go, Byong‐Guk Park, Kyung-Jin Lee   +6 more
semanticscholar   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Universal Dimensionality of Ferroelectric Domain Walls in Ultrathin Films

Advanced Physics Research
The dimensionality of dynamic interfaces—domain walls (DWs) —is greatly influenced by symmetry and physical dimensions, irrespective of the microscopic details of the system. To address this fundamental question for the ferroelectric model system, the DW
Somnath Kale, Adrian Petraru, Hermann Kohlstedt, Rohit Soni   +3 more
doaj   +1 more source

Mechanisms of Producing Primordial Black Holes and Their Evolution

Particles, 2023
Primordial black holes have become a highly intriguing and captivating field of study in cosmology due to their potential theoretical and observational significance.
Maxim A. Krasnov, Valery V. Nikulin
doaj   +1 more source

Ballistic and diffuse transport through a ferromagnetic domain wall

, 1999
We study transport through ballistic and diffuse ferromagnetic domain walls in a two-band Stoner model with a rotating magnetization direction. For a ballistic domain wall, the change in the conductance due to the domain wall scattering is obtained from ...
A. Brataas, A. D. Kent, A. D. Kent, Arne Brataas, C. M. Bender, G. G. Cabrera, G. G. Cabrera, G. Tatara, Gen Tatara, Gerrit E. W. Bauer, I. Mertig, J. F. Gregg, J. van Hoof, K. M. Hong, L. Berger, M. Viret, N. Garcia, P. M. Levy, P. Zahn, R. P. van Gorkom, U. Ruediger, U. Ruediger, Y. Otani   +22 more
core   +2 more sources

High Antiferromagnetic Domain Wall Velocity Induced by Néel Spin-Orbit Torques. [PDF]

Physical Review Letters, 2016
We demonstrate the possibility to drive an antiferromagnetic domain wall at high velocities by fieldlike Néel spin-orbit torques. Such torques arise from current-induced local fields that alternate their orientation on each sublattice of the ...
O. Gomonay, O. Gomonay, T. Jungwirth, T. Jungwirth, J. Sinova, J. Sinova   +5 more
semanticscholar   +1 more source

Domain Walls from M-Branes [PDF]

Modern Physics Letters A, 1997
We discuss the vertical dimensional reduction of M-sbranes to domain walls in D=7 and D=4, by dimensional reduction on Ricci-flat four-manifolds and seven-manifolds. In order to interpret the vertically-reduced five-brane as a domain wall solution of a dimensionally-reduced theory in D=7, it is necessary to generalize the usual Kaluza–Klein ansatz, so
Lü, H., Pope, C. N.
openaire   +2 more sources

Process‐Informed Analysis of As‐Built Metal Additive Surface Features

Advanced Engineering Materials, EarlyView.
This article introduces a novel method for feature‐based surface texture characterisation directly incorporating manufacturing variables into the feature extraction workflow. This marks a major step towards identifying process‐specific surface properties and their influence on part function and hence a holistic understanding of process–structure ...
Theresa Buchenau, Adam Thompson, Hauke Brüning, Marc Amkreutz, Bernd Mayer, Samanta Piano   +5 more
wiley   +1 more source

Current-induced domain wall motion in a nanowire with perpendicular magnetic anisotropy

, 2008
We study theoretically the current-induced magnetic domain wall motion in a metallic nanowire with perpendicular magnetic anisotropy. The anisotropy can reduce the critical current density of the domain wall motion. We explain the reduction mechanism and
Jung, Soon-Wook, Kim, Woojin, Lee, Hyun-Woo, Lee, Kyung-Jin, Lee, Taek-Dong   +4 more
core   +1 more source

Magnetic microscopy of topologically protected homochiral domain walls in an ultrathin perpendicularly magnetized Co film [PDF]

, 2015
Next-generation concepts for solid-state memory devices are based on current-driven domain wall propagation, where the wall velocity governs the device performance. It has been shown that the domain wall velocity and the direction of travel is controlled
Benitez, Maria Jose, Burnell, Gavin, Hrabec, Ales, Marrows, Christopher H., McGrouther, Damien, McVitie, Stephen, Mihai, Andrei P., Moore, Thomas A.   +7 more
core   +3 more sources