Magnetic exchange coupling energy calculating method and apparatus
AssigneeFujitsu Limited
InventorKoichi Shimizu
Life of this patent
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Abstract
A non-transitory computer-readable recording medium stores a magnetic program causing a computer to perform an exchange coupling energy calculating process including interpolating a rotation angle between two magnetization vectors disposed at the respective centers of two adjacent elements used in a finite volume method with reference to a rotation axis perpendicular to the two magnetization vectors, and calculating a magnetic exchange coupling field by integrating a magnetic field acting as a force exerted on the two magnetization vectors with the interpolated rotation angle.
Claims16
A non-transitory computer-readable recording medium storing a program configured to cause a computer to perform a magnetic exchange coupling energy calculating process, the magnetic exchange coupling energy calculating process comprising:
- linearly interpolating a rotation angle between two magnetization vectors disposed at the respective centers of two adjacent elements used in a finite volume method, the rotation angle between the two magnetization vectors being linearly interpolated with reference to a rotation axis that is shared by the two magnetization vectors and perpendicular to the two magnetization vectors that rotate about the rotation axis;
- and
- calculating a magnetic exchange coupling field by integrating a magnetic field acting as a force exerted on the two magnetization vectors with the linearly interpolated rotation angle.
A non-transitory computer-readable recording medium storing a program configured to cause a computer to perform a magnetic exchange coupling energy calculating process, the magnetic exchange coupling energy calculating process comprising:
- linearly interpolating a rotation angle between two magnetization vectors disposed at the respective centers of two adjacent elements used in a finite volume method, the rotation angle between the two magnetization vectors being linearly interpolated with reference to a rotation axis that is shared by the two magnetization vectors and perpendicular to the two magnetization vectors that rotate about the rotation axis;
- and
- calculating a magnetic exchange coupling energy by integrating the energy of a volume occupied by the two magnetization vectors with the linearly interpolated rotation angle.
A magnetic exchange coupling energy calculating method comprising:
- linearly interpolating a rotation angle between two magnetization vectors disposed at the respective centers of two adjacent elements used in a finite volume method, the rotation angle between the two magnetization vectors being linearly interpolated with reference to a rotation axis that is shared by the two magnetization vectors and perpendicular to the two magnetization vectors that rotate about the rotation axis;
- and
- calculating, using a processor, a magnetic exchange coupling field by integrating a magnetic field acting as a force exerted on the two magnetization vectors with the linearly interpolated rotation angle.
A magnetic exchange coupling energy calculating method comprising:
- linearly interpolating a rotation angle between two magnetization vectors disposed at the respective centers of two adjacent elements used in a finite volume method, the rotation angle between the two magnetization vectors being linearly interpolated with reference to a rotation axis that is shared by the two magnetization vectors and perpendicular to the two magnetization vectors that rotate about the rotation axis;
- and
- calculating, using a processor, a magnetic exchange coupling energy by integrating the energy of a volume occupied by the two magnetization vectors with the linearly interpolated rotation angle.
A magnetic exchange coupling energy calculating apparatus comprising:
- an interpolating unit configured to linearly interpolate a rotation angle between two magnetization vectors disposed at the respective centers of two adjacent elements used in a finite volume method, the rotation angle between the two magnetization vectors being linearly interpolated with reference to a rotation axis that is shared by the two magnetization vectors and perpendicular to the two magnetization vectors that rotate about the rotation axis, and
- a calculating unit configured to calculate a magnetic exchange coupling field by integrating a magnetic field acting as a force exerted on the two magnetization vectors with the linearly interpolated rotation angle.
Dependencies are inferred from the claim text.