Version 4 Released 1 April 2015!!
LLG Micromagnetics SimulatorTM
is a full 3-dimensional simulation tool with integrated graphics that
solves the Landau-Liftshitz-Gilbert-Langevin equations (with spin-torques)
by relaxation and/or integration. With LLG, you can characterize
micromagnetic structure and dynamics in films, on surfaces and in devices
- LLG computes the equilibrium magnetization distribution in small particles and in thin films,
as well as computes fundamental properties, such as the coercive
field, switching time, interlayer coupling strength, vortex and
domain wall lengths.
- LLG simulates the structure and
response of magnetic devices, such as magnetic random access
memory, spin valves, AMR and GMR heads, and magnetic sensors.
- LLG computes standard magnetic imaging
contrast mechanisms realized in Lorentz microscopy, electron holography,
SEMPA, and magnetic force microscopy. For MFM, the tip can be part of
the relaxation process, whereby the sample field reorients the tip magnetization.
Unsure Whether LLG Can
Solve Your Problem?
Provide us with the parameters, and we'll
run a problem for you as a demonstration. Call
or email to have a problem run, for more information, to order, or to
request a quote. Additional discounts are available for multiple copies
for classroom use and volume site licenses. Email us for details.
Micromagnetics Simulator products What
are the main new features in LLG v4_x64? SPEED!
Concurrent CPU/GPU support.
- Support for CPU
hyperthreading using OpenMP.
- Support for NVidia
GPUs using Cuda 6.5 and up.
- Simultaneous use
of GPU and OpenMP.
- Real time integration
with Windows and OpenGL for runtime viewing/probing simulation-output
(consistent with prior LLG architecture).
- >65x speed improvement
over LLGv3 x64 for large problems e.g. 128^3 voxels in double precision
(hardware and problem geometry/feature dependent).
- Spin Hall Effect
- Rashba Effect
- Many previous custom
features have been exposed including: ferrite anisotropy; time dependent
field-induced anistropy; anisotropic exchange; iterative refinement
for high precision problems; and many more features.
Simulator (LLGv4) only runs on x64 versions of Windows 7 or higher (LLG
does not support MacOS or UNIX/LINUX). LLG uses a USB-hardware encryption
key for security. LLG will only run on the computer or workstation on
which the key is installed – in other words, LLG will not run over a network.
What is included in
the LLG package?
- LLG v4.01 x64; LLG v3.14 x32; LLG v3.14
- Batch mode processing
- Console mode processing
- Journal viewer
- pdf file of the 300-page user manual
- Online help
- Sample problems