We propose a new mechanism for surface-induced magnetic anisotropy to explain the thickness dependence of the Kondo resistivity of thin films of dilute magnetic alloys. The surface anisotropy energy, generated by spin-orbit coupling on the magnetic impurity itself, is an oscillating function of the distance d from the surface and decays as 1/d2. Numerical estimates based on simple models suggest that this mechanism, unlike its alternatives, gives rise to an effect of the desired order of magnitude.
|Translated title of the contribution||Effect of spin-orbit interaction on a magnetic impurity in the vicinity of a surface|
|Pages (from-to)||1 - 4|
|Number of pages||4|
|Journal||Physical Review Letters|
|Volume||96 (6, 067204)|
|Publication status||Published - Feb 2006|