Interlayer exchange coupling in asymmetric Fe(110)/Cu/Fe(110) thin films studied by Brillouin light scattering

Brillouin scattering cross section in Fe(110)/Cu(111)/Fe(110) asymmetric bilayers

“…1, the experimental spectra obtained as a function of for d Cu ϭ9 Å are compared to those calculated using the values of the magnetic parameters determined in our previous investigations. 3,7 For all the spectra analyzed two modes are present: one for which the precession of the dynamic magnetization components m x and m y is in phase ͑acoustical mode͒ and the other characterized by out-of-phase oscillations ͑optical mode͒. The agreement is very good both on the Stokes and anti-Stokes side.…”

“…The LEED analysis revealed that both the 20 and the 60 Å thick iron films are in the body-centered-cubic phase because of the growth of threedimensional ͑110͒ domains in the Kurdjumov-Sachs orientation. 6,7 Further details about sample preparation and structural results are reported in Ref. 1.…”

“…quency behavior is J 1 ϭ0.161Ϯ0.005 erg/cm 2 . 3,7 It is interesting to discuss the interchange between the two modes occurring in the range 10°ϽϽ30°in terms of a competition between the exchange ͑which in this case is strong͒ and the dipolar energy terms. The calculated switch of the two modes occurs for about 20°and the intensity peaks at ϭ10°and at ϭ30°are well reproduced by our calculations on both sides of the BLS spectra.…”

The influence of roughness on some magnetic properties of layered structures of Fe, Co separated Cu or Au

“…Such phenomena as interlayer exchange coupling (IEC), giant magnetoresistance and elementary excitations [1][2][3][4][5][6][7] have been studied intensively, in contrary to basic magnetic properties of multilayers, to which much less attention have been paid [7][8][9]. In this paper we investigate magnetisation profiles and Curie temperature of bilayers with roughness in interface region.…”