Calculations of surface spin dynamics associated with biquadratic exchange and uniaxial anisotropy field in (Sâ¯>â¯1) heisenberg ferromagnet by means of matching procedure.
Keywords: سطح مغناطیسی; Anisotropic heisenberg ferromagnet; Biquadratic coupling; Magnetic surface; Elementary excitations; 75.10. jm. quantized spin models; 75.30. ds. spin waves; 75.30. gw. magnetic anisotropy; 75.70. rf. surface magnetism;