Results 71 to 80 of about 10,377 (181)

Observation of the dominant spin-triplet supercurrent in Josephson spin valves with strong Ni ferromagnets

Physical Review Research, 2020
We study experimentally nanoscale Josephson junctions and Josephson spin valves containing strongly ferromagnetic Ni interlayers. We observe that in contrast to junctions, spin valves with the same geometry exhibit anomalous I_{c}(H) patterns with two ...
O. M. Kapran, A. Iovan, T. Golod, V. M. Krasnov   +3 more
doaj   +1 more source

Complex magnetism of B20-MnGe: from spin-spirals, hedgehogs to monopoles

, 2019
B20 compounds are the playground for various non-trivial magnetic textures such as skyrmions, which are topologically protected states. Recent measurements on B20-MnGe indicate no clear consensus on its magnetic behavior, which is characterized by the ...
Baumeister, Paul F., Blügel, Stefan, Bornemann, Marcel, Dias, Manuel dos Santos, Grytsiuk, Sergii, Lounis, Samir, Zeller, Rudolf   +6 more
core   +1 more source

Classical analog of qubit logic based on a magnon Bose–Einstein condensate

Communications Physics, 2022
Adding to the significant interest in quantum computing schemes, this work focuses on classical analogs for which entanglement is not required. Specifically, this work demonstrates through micromagnetic numerical simulations the use of wavevector ...
Morteza Mohseni, Vitaliy I. Vasyuchka, Victor S. L’vov, Alexander A. Serga, Burkard Hillebrands   +4 more
doaj   +1 more source

Spin-wave-induced lateral temperature gradient in a YIG thin film/GGG system excited in an ESR cavity

, 2018
Lateral thermal gradient of an yttrium iron garnet (YIG) film under the microwave application in the cavity of the electron spin resonance system (ESR) was measured at room temperature by fabricating a Cu/Sb thermocouple onto it.
Ando, Yuichiro, Dushenko, Sergey, Shigematsu, Ei, Shinjo, Teruya, Shiraishi, Masashi   +4 more
core   +1 more source

Experimental evidence of self-localized and propagating spin wave modes in obliquely magnetized current-driven nanocontacts

, 2010
Through detailed experimental studies of the angular dependence of spin wave excitations in nanocontact-based spin-torque oscillators, we demonstrate that two distinct spin wave modes can be excited, with different frequency, threshold currents and ...
Bonetti, Stefano, Consolo, Giancarlo, Finocchio, Giovanni, Mancoff, Fred, Muduli, Pranaba, Slavin, Andrei N., Tiberkevich, Vasyl S., Åkerman, Johan   +7 more
core   +1 more source

Temperature and medium structurization effect on spontaneous evolution of domains and bubbles in magnetic nanostructures

Journal of Physics Communications
Spontaneous evolutions of domains in magnetic nanowires and of magnetic bubbles in open ferromagnetic nanolayers are investigated using micromagnetic simulations.
Andrzej Janutka
doaj   +1 more source

Individual vortex nucleation/annihilation in ferromagnetic nanodots with broken symmetry observed by micro-Hall magnetometry

AIP Advances, 2015
We studied vortex nucleation/annihilation process and its temperature dependence in micromagnetic objects with lowered symmetry using micro-Hall magnetometry.
T. Ščepka, T. Polakovič, J. Šoltýs, J. Tóbik, M. Kulich, R. Kúdela, J. Dérer, V. Cambel   +7 more
doaj   +1 more source

Macrospin limit and configurational anisotropy in nanoscale Permalloy triangles

, 2009
In Permalloy submicron triangles, configurational anisotropy - a higher-order form of shape anisotropy - yields three equivalent easy axes, imposed by the structures' symmetry order.
Aharoni, Cowburn, Cowburn, Cowburn, Cowburn, D. Petit, H.T. Zeng, Koltsov, L. Thevenard, Mattheis, Osborn, Otte, R.P. Cowburn, Schabes, Stoner, Thevenard, Vavassori, Zimanyi   +17 more
core   +1 more source

Micromagnetic simulations of spinel ferrite particles

Journal of Magnetism and Magnetic Materials, 2010
This paper presents the results of simulations of the magnetization field {\it ac} response (at $2$ to $12$ GHz) of various submicron ferrite particles (cylindrical dots). The ferrites in the present simulations have the spinel structure, expressed here by M$_{1-n}$Zn$_{n}$Fe$_2$O$_4$ (where M stands for a divalent metal), and the parameters chosen ...
Dantas, Christine C., Gama, Adriana M.
openaire   +2 more sources

Equilibrium magnetisation structures in ferromagnetic nanorings

, 2006
The ground state of the ring-shape magnetic nanoparticle is studied. Depending on the geometrical and magnetic parameters of the nanoring, there exist different magnetisation configurations (magnetic phases): two phases with homogeneous magnetisation ...
H. Aoki, Huxley, K. Enomoto, K. Maezawa, M. Endo, Miyake, N. Kimura, Pfleiderer, S. Uji, Saxena, T. Komatsubara, T. Konoike, T. Matsumoto, T. Terashima, Tateiwa, Terashima, Terashima, Terashima, Ueda   +18 more
core   +1 more source