Journal of Magnetism and Magnetic Materials vol:226 pages:1588-1590
The first NMR study of MnAs epitaxial thin films grown on (0 0 1)GaAs is reported. Based on the invariance of Mn-55 and As-75 hyperfine fields it is shown that the local magnetic properties of MnAs thin films remain the same as in the bulk material. A hysteresis of the domain pattern upon applying the magnetic field is inferred from the evident reversible changes of the NMR spectrum shape. (C) 2001 Elsevier Science BY. All rights reserved.