An investigation of thermally induced spin dynamics of magnetic nanoparticles is presented. We use an atomistic model for the magnetic interactions within an effective, classical spin Hamiltonian constructed on the basis of first-principles calculations for L10 FePt. Using Langevin dynamics we investigate how the internal degrees of freedom affect the switching behavior at elevated temperatures...

To expand our knowledge of the martensitic transformation from a B2 to an L10 structure for ferromagnetic shape memory Co-Ni-Al alloys, we have performed first-principles band calculations for the supercell structures corresponding to Co1 xNi1þxAl (x 1⁄4 0, 1=2) in a nonmagnetic state. From the investigation of total energy vs c=a, we have found that the total-energy gain for x 1⁄4 0 due to the...

The microstructure of a Co38Ni33Al29 FSMA was determined by conventional transmission electron microscopy, electron diffraction studies together with advanced microscopy techniques and in-situ Lorentz microscopy. 10 to 60 nm sized rod-like precipitates of hcp ǫ-Co were confirmed to be present by HRTEM. The orientation relationship between the precipitates and B2 matrix is described by the Burge...

In Selenomonas ruminantium, a strictly anaerobic and gram-negative bacterium, the degradation of lysine/ornithine decarboxylase (LDC/ODC) by ATP-requiring protease(s) is accelerated by the binding of P22, which is a ribosomal protein of this strain. Amino acid sequence alignment of S. ruminantium P22 with the L10 ribosomal proteins of gram-positive and -negative bacteria showed that P22 has a 5...