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MA: Magnetismus

MA 20: Poster: Films(1-36) Transp(37-56) Ex.Bias(57-67) Spindyn(68-80) Micromag(81-95) Particle(96-109) Imag.+Surface(110-113) Spinelectr(114-122) Theory+Micromag(123-131) Spinstr+Aniso(132-142) MagMat(143-156) Meas(157,158) MolMag+Kondo(159-162) Postdead(163-)

MA 20.125: Poster

Tuesday, March 28, 2006, 15:15–19:15, P1

What determines the shape of temperature dependence of spontaneous magnetisation — •Michael Kuzmin¹, Manuel Richter¹, and Alexander Yaresko² — ¹IFW Dresden, PF 270116, 01171 Dresden — ²MPI PKS, 01187 Dresden

Temperature dependence of spontaneous magnetization of ferromagnets can be described by a simple expression containing one free parameter. We demontrate how the form of this expression can be inferred from the basic theory of critical phenomena and spin waves.