Hyperfine Interact (2008) 183:171–177 DOI 10.1007/s10751-008-9747-0 Hyperfine interaction studies and magnetic properties of FeCoAlN nanocomposite films A. Lancok · K. Zaveta · T. Kanuch · M. Miglierini · J. Lancok · K. Postava · J. Kohout · O. Zivotsky · F. Fendrych Published online: 11 October 2008 © Springer Science + Business Media B.V. 2008 Abstract Nanogranular magnetic films were produced by specially designed UHV plasma-jet system with DC hollow-cathode discharge. We investigated the properties of these ferromagnetic FeCoAlN-based films. The analyses of the samples were additionally complemented by the study of nuclear magnetic resonance (NMR), Mössbauer spectroscopy, magnetic measurements, and X-ray diffraction. Keywords Nanoparticles · Thin films · Mössbauer spectroscopy · Plasma-jet deposition · NMR 1 Introduction Nanostructured materials are the subject of intense research during the past 10 years. Ultrasoft ferromagnetic films become more and more important especially in the A. Lancok (B ) · T. Kanuch · M. Miglierini Institute of Inorganic Chemistry AS CR, v.v.i., 25068, Rez near Prague, Czech Republic e-mail: ada@iic.cas.cz A. Lancok · K. Zaveta · J. Lancok · F. Fendrych Institute of Physics AS CR, v.v.i., Na Slovance 2, 18221 Prague 8, Czech Republic K. Zaveta · J. Kohout Faculty of Math and Physics, Charles University, V Holesovickach 2, 18000 Prague 8, Czech Republic T. Kanuch · M. Miglierini Department of Nuclear Physics and Technology, STU, Ilkovicova 3, 81219 Bratislava, Slovak Republic K. Postava · O. Zivotsky Department of Physics, Technical University of Ostrava, 17.listopadu 15, 70833 Ostrava, Czech Republic