Teori gelombang spin dan kemagnetan di subpermukaan ferromagnet dengan pengurangan tukar ganti permukaan

• Main Authors: Ahmad, Shamsuddin, Kamis, Ismail, Md. Raji, Abdul Wahid
• Format: Conference or Workshop Item
• Language: English
• Published: 1992
• Subjects: QA Mathematics
• Online Access: http://eprints.utm.my/id/eprint/10651/1/ShamsuddinAhmad1992_TeoriGelombangSpindanKemagnetan.pdf; http://eprints.utm.my/id/eprint/10651/

Green's function for the subsurface of semi-infinite ferromagnet is derived by using "adlayer method". This Green's function is used to calculate subsurface density of states and temperature dependence of subsurface magnetization M (T) of spin wave. At temperatures as low as 1% of the Curie temperature T, neither softening surface exchanges nor position of subsurface atomic layers has any effect on the initial T law for subsurface magnetization M (T). The subsurface magnetization M (T) above these temperatures obeys a T law whose prefactor is determined by surface exchanges and the position of subsurfaces.