We report on optically induced, ultrafast magnetization dynamics in the Heusler alloy ${\mathrm{Co}}_{2}\mathrm{FeAl}$, probed by time-resolved magneto-optical Kerr effect. Experimental results are compared to from electronic structure theory and atomistic spin-dynamics simulations. Experimentally, we find that demagnetization time (${\ensuremath{\tau}}_{M}$) films of ${\mathrm{Co}}_{2}\mathrm{...

In 1,2] we introduced the notion of diierential cryptanalysis and described its application to DESS11] and several of its variants. In this paper we show the applicability of diierential cryptanalysis to the Feal family of encryption algorithms and to the N-Hash hash function. In addition, we show how to transform diierential cryptanalytic chosen plaintext attacks into known plaintext attacks.

In [1,2] we introduced the notion of differential cryptanalysis and described its application to DES[8] and several of its variants. In this paper we show the applicability of differential cryptanalysis to the Feal family of encryption algorithms and to the N-Hash hash function.

Elastic field coupling to solute concentration is known to produce dislocationdriven impurity segregation. Recent reports detailing the distribution of boron around edge dislocations in B2-ordered FeAl indicate that nonlinear coupling of species concentration and elastic strain to the chemical potential must be considered to assess the magnitude of boron segregation around edge dislocations. On...