Results 71 to 80 of about 13,083 (302)

In situ observation of the magnetization configuration and reversal in cylindrical nanowires

APL Materials, 2022
Curvilinear magnetic structures often have unique magnetic behavior compared to their rectilinear counterparts. This is due to the unique curvilinear boundary conditions as well as the curvature induced Dzyaloshinskii–Moriya-like interaction and the ...
Vuk Brajuskovic, Arthur McCray, Yuepeng Zhang, Charudatta Phatak   +3 more
doaj   +1 more source

Biased quasiballistic spin torque magnetization reversal

, 2008
Serrano-Guisan S, Rott K, Reiss G, Langer J, Ocker B, Schumacher HW. Biased quasiballistic spin torque magnetization reversal. PHYSICAL REVIEW LETTERS. 2008;101(8): 087201.We explore the ultrafast limit of spin torque magnetization reversal time.
Serrano-Guisan, S., Rott, Karsten, Langer, J., Schumacher, H. W., Ocker, B., Reiss, Günter ; https://orcid.org/   +5 more
core   +1 more source

Time‐Resolved Magnetization Switching Dynamics Driven by Orbital Torques

Advanced Functional Materials, EarlyView.
Du et al. reveal nanosecond magnetization switching driven by orbital currents using time‐resolved Hall detection. The measurements separate domain nucleation from domain wall propagation and show that Joule heating strongly assists switching by lowering energy barriers.
Ao Du, Shilei Ding, Min‐Gu Kang, Marco Hoffmann, Pietro Gambardella   +4 more
wiley   +1 more source

Reversible and irreversible aggregation of magnetic liposomes

Nanoscale, 2017
Magnetic vesicles are among the most promising nanodevices used in nanomedical diagnosis and therapy. Here we reveal the complex interaction scenario involved in their aggregation in solution when a controllable external magnetic field is applied.
Sonia García-Jimeno, Joan Estelrich, José Callejas-Fernández, Sándalo Roldán-Vargas   +3 more
openaire   +5 more sources

Direct observation of dynamical magnetization reversal process governed by shape anisotropy in single NiFe2O4 nanowire

, 2018
Discovering how the magnetization reversal process is governed by the magnetic anisotropy in magnetic nanomaterials is essential and significant to understand the magnetic behaviour of micro-magnetics and to facilitate the design of magnetic ...
Zhang, Xixiang, Xia, Weixing, Zhu, Shimeng, Zhang, Junli, Li, Hongli, Zhu, Liu, Peng, Yong, Fu, Jiecai, Hu, Yang   +8 more
core   +1 more source

Distribuição de barreiras de energia de nanopartículas magnéticas em campo externo [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Física, Florianópolis, 2014.Neste trabalho estudamos o comportamento da magnetização de um sistema de nanopartículas ...
Salvador, Marcelo
core  

Energetics and switching of quasi-uniform states in small ferromagnetic particles [PDF]

, 2004
We present a numerical algorithm to solve the micromagnetic equations based on tangential-plane minimization for the magnetization update and a homothethic-layer decomposition of outer space for the computation of the demagnetization field.
Conti, Sergio, Yvo Pokern, Antonio DeSimone, Pokern, Yvo, CONTI S., François Alouges, DeSimone, Antonio, DESIMONE A., POKERN Y., Alouges, François, Sergio Conti, ALOUGES F., De Simone, Antonio   +12 more
core   +1 more source

Giant Magnetic Coercivity Driven by Spin‐Bag Ferromagnetism in Epitaxial Sr3YCo4O10+δ Films with Engineered 2D Oxygen Vacancy Ordering

Advanced Functional Materials, EarlyView.
A giant magnetic coercivity and a vertical shift of hysteresis loops are demonstrated in Sr3YCo4O10+δ epitaxial films. The hard magnetic behavior originates from ferromagnetic spin bags stabilized within a long‐range ordered oxygen‐vacancy structure.
Yanbin Chen, Roger Guzman, Xiaomin Jia, Jialu Wu, Xing Xu, Li Sun, Jinbo Pan, Shixuan Du, Myung‐Hwan Whangbo, Wu Zhou, Jing Ma, Ce‐wen Nan, Chonglin Chen   +12 more
wiley   +1 more source

Statistical mechanics of nonuniform magnetization reversal [PDF]

Physical Review B, 1994
21 pages RevTex 3.0 (twocolumn), 6 figures available on request, to appear in Phys Rev B, Dec (1994)
openaire   +3 more sources

Nonlinear Magnetization Dynamics in Thin-Films and Nanoparticles

, 2005
In chapter 1 the micromagnetic model and the Landau-Lifshitz-Gilbert (LLG) equation is introduced to describe magnetization phenomena in ferromagnetic bodies.
D'Aquino, Massimiliano
core