Applies a uniform (vector) magnetic field to the system. More...
#include <MagneticField.hpp>
Inheritance diagram for OpenMD::MagneticField:
Public Member Functions | |
| MagneticField (SimInfo *info) | |
Additional Inherited Members | |
| Protected Member Functions inherited from OpenMD::ForceModifier | |
| ForceModifier (SimInfo *info) | |
| Protected Attributes inherited from OpenMD::ForceModifier | |
| SimInfo * | info_ {nullptr} |
Detailed Description
Applies a uniform (vector) magnetic field to the system.
The field is applied as an external perturbation. The user specifies
in the .omd file where the values of a, b, and c are in units of Tesla
When a charge moves in a magnetic field, there is no work done, so there is no change in potential.
The field itself is
\( \mathbf{B} = \left( \begin{array}{c} a \\ b \\ c \end{array} \right) \)
The external magnetic field applies a force on moving charged atoms, \( \mathbf{F} = C \mathbf{v} \times \mathbf{B} \) and a torque on moving (and rotating) dipoles, \( \mathbf{\tau} = \mathbf{D} \times ( \mathbf{v} \times \mathbf{B} ) + (\mathbf{\omega} \times \mathbf{D} ) \times \mathbf{B} \)
Definition at line 81 of file MagneticField.hpp.
Constructor & Destructor Documentation
◆ MagneticField()
| OpenMD::MagneticField::MagneticField | ( | SimInfo * | info | ) |
Definition at line 56 of file MagneticField.cpp.
The documentation for this class was generated from the following files:
- perturbations/MagneticField.hpp
- perturbations/MagneticField.cpp
