123 citations · 260 across the 8 of their papers we have counts for
9 papers · 1 filter
Conjugate gradient methods in micromagnetics
J. Fischbacher, A. Kovacs, H. Oezelt +9
Conjugate gradient methods for energy minimization in micromagnetics are compared. When the step length in the line search is controlled, conjugate gradient techniques are a fast a…
Nanoanalytical TEM studies and micromagnetic modelling of Nd-Fe-B magnets
Gregor A. Zickler, Peter Toson, Ahmad Asali +1
We have analysed the influence of the microstructural features, such as intergranular grain boundary (GB) phases and misalignment of the hard magnetic grains, on the optimization o…
Ab-Initio Study on the Hard Magnetic Properties of MnBi
Peter Toson, Ahmad Asali, Gregor A. Zickler +1
We have studied the hard magnetic properties of the low-temperature phase of MnBi with first principle calculations based on the density functional theory. The calculations have be…
Calculation of coercivity of magnetic nanostructures at finite temperatures
D. Suess, L. Breth, J. Lee +7
We report a finite temperature micromagnetic method (FTM) that allows for the calculation of the coercive field of arbitrary shaped magnetic nanostructures at time scales of nanose…
Nanostructured Melt-Spun Sm(Co,Fe,Zr,B)7:5 Alloys for High-Temperature Magnets
Sofoklis S. Makridis, George Litsardakis, Kostas G. Efthimiadis +6
High coercivity, the highest for Cu-free 2 : 17 Sm-Co ribbons, has been obtained in as-spun (= 211 kOe) and short time annealed (= 232 kOe) samples of Sm(CobalFe Zr B)7 5 alloys, w…
Direct calculation of the attempt frequency of magnetic structures using the finite element method
G. Fiedler, J. Fidler, J. Lee +4
A numerical implementation of the transition state theory (TST) is presented which can be used to calculate the attempt frequency of arbitrary shaped magnetic nanostructure…
Internal effective field sources for spin torque nano pillar oscillators
Gino Hrkac, Thomas Schrefl, Julian Dean +4
In this paper we numerically conduct micromagnetic modelling with an expended micromagnetic model that includes the spin torque term and an impedance model to investigate methods t…
Exchange coupled perpendicular media
D. Suess, J. Lee, J. Fidler +1
The potential of exchange spring bilayers and graded media is reviewed. An analytical model for the optimization of graded media gives an optimal value of the magnetic polarization…
Micromagnetics of single and double point contact spin torque oscillators
Gino Hrkac, Julian Dean, Alexander Goncharov +5
In this paper we numerically conduct micromagnetic modelling to optimize computational boundaries of magnetic thin-film elements applicable to single and double point contact spin…