Results 171 to 180 of about 7,578 (209)
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Micromagnetic simulation of iron nanorings
Journal of Magnetism and Magnetic Materials, 2005Abstract We performed a systematic study of the magnetic properties of iron nanorings with 80 nm external diameter varying the thickness in the framework of micromagnetic theory. Hysteresis loops were determined in an applied magnetic field ranging from −800 to 800 mT. The behavior of coercive field as a function of the ratio of the inner d
J.J. Torres-Heredia +2 more
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Micromagnetic simulation of taenite particles
2021<p></p><div> <div> <div>The cloudy zone (CZ), an intergrowth structure of Fe-rich and Ni-rich phases that forms during slow cooling of iron meteorites are potential recorders of&#160; their parent body&#8217;s thermal and magnetic history.
José Devienne +2 more
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Micromagnetic modeling simulations and applications
2006 17th International Zurich Symposium on Electromagnetic Compatibility, 2006The advancement in micro and nano-scale technologies demands in depth understanding of magnetic behaviors. For example, as the ever increasing need for high capacity data storage continuously pushes the boundaries of magnetic recording technology to the physical limits, detailed analysis of the magnetic properties becomes necessary. It is expected that
H.H. Long, Z.J Liu, E.T. Ong, E.P. Li
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Micromagnetic Simulations in Magnonics
2012We review the use of numerical micromagnetic simulations (“micromagnetics”) for investigations in magnonics, the study of spin waves and their quanta – magnons. We argue that, when used with suitable post-processing tools, micromagnetics provide the power and flexibility necessary both for interpretation of complex magnonic phenomena observed in ...
M. Dvornik, Y. Au, V. V. Kruglyak
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Micromagnetic simulation of precessional switching
Physica B: Condensed Matter, 2006Abstract Precessional switching of information bits may prove to be an alternative of traditional “hysteretic” switching in magnetic memory devices. The experimental studies of this new “write-in” process have manifested unwanted fluctuations, which may pose a limit to its technological applicability.
György Kádár, István Lovas
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Micromagnetic simulations of transverse recording
IEEE Transactions on Magnetics, 1991A hierarchical micromagnetic model of longitudinal thin film media has been employed to investigate the high density performance of transverse recording. The model predicts that linear densities up to 12 bits/ mu m (300 kfci) can be supported on media of 750 Oe coercivity.
J.J. Miles, B.K. Middleton
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Micromagnetic Simulation of Switching Events
2007Magnetic switching of small particles, thin film elements and magnetic nanowires becomes increasingly important in magnetic storage and magneto electronic devices. Micromagnetic switching events are studied using a hybrid finite element / boundary element method.
Thomas Schrefl +5 more
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Adaptive Mesh Refinement for Micromagnetics Simulations
IEEE Transactions on Magnetics, 2006We present a methodology for efficient micromagnetics simulation. The method combines an unconditionally stable, finite differences scheme with an adaptive mesh refinement technique. It enhances accuracy by covering locally special regions of the domain with a sequence of nested, progressively finer rectangular grid patches that dynamically follow ...
C.J. Garcia-Cervera, A.M. Roma
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Discretization-Induced Stiffness in Micromagnetic Simulations
IEEE Transactions on Magnetics, 2014In the numerical integration of the Landau-Lifshitz-Gilbert (LLG) equation, stiffness (stability restrictions on the time step size for explicit methods) is known to be a problem in some cases. We examine the relationship between stiffness and spatial discretization size for the LLG with exchange and magnetostatic effective fields.
Shepherd, DP +3 more
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Micromagnetic simulation method with N1.5 scaling
Journal of Applied Physics, 1999A thin permalloy film with dimensions of 1 μm×2 μm×20 nm was simulated with a new three-dimensional method. The method is designed in such a way that the computing time scales roughly as N1.5 in the number N of discretization elements used to describe the system.
Filipe Ribeiro +2 more
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