Publications in Scientific Journals:

L. Udvardi, S. Khmelevskyi, L. Szunyogh, P. Mohn:
"Helimagnetism and competition of exchange interactions in bulk giant magnetoresistance alloys based on MnAu_{2}";
Physical Review B, 73 (2006), 1044461 - 1044466.

English abstract:
By using the generalized perturbation method within the screened Korringa-Kohn-Rostoker formalism we
calculate magnetic exchange interactions in the helimagnetic bulk MnAu2 compound upon alloying Mn with
Fe and Cr. The obtained interactions reproduce well the results of neutron diffraction experiments concerning
the periodicity of the helix in MnAu2 and its weakening with Fe substitution thus supporting the conventional
interpretation of a metamagnet-ferromagnet transitions due to external fields. In the case of Mn1−xCrxAu2
alloys our results reveal that the experimentally observed magnetization process follows a completely different
scenario, predicted theoretically a few decades ago for nearly orthogonal helimagnetics.

DOI: 10.1103/PhysRevB.73.104446 PACS number

Online library catalogue of the TU Vienna:

Created from the Publication Database of the Vienna University of Technology.