PPT Slide
Energy of the Binary Magnetic System
- Thermal properties of the binary magnetic systems become relevant when elementary magnets are placed in magnetic field
- energy of a single magnetic moment m, in external magnetic field (let us assume the magnetic field in the z direction, which is in the direction of the elementary spins)
- energy of the whole system of N elementary magnets, each with two allowed orientation in the direction of the external field
(M is the total magnetization of the system, and m the magnetic moment of one spin.)
- the value of the energy for moments that interact only with the external magnetic field is completely determined by the value of s !
- difference between adjacent levels in the energy spectrum is: