Preparation of thin films of the heavy fermion superconductor UNi2Al3
Journal of magnetism and magnetic materials. Bd. 272/276. H. 1. 2004 S. E163 - E164
Erscheinungsjahr: 2004
ISBN/ISSN: 0304-8853
Publikationstyp: Zeitschriftenaufsatz
Sprache: Englisch
Doi/URN: 10.1016/j.jmmm.2003.11.095
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Inhaltszusammenfassung
Thin films of the heavy fermion superconductor UNi2Al3 were prepared by coevaporation of the elementary components in an MBE-system. We obtained textured (1 0 0)-oriented films of this hexagonal compound depositing on Al2O3 substrates. Epitaxial growth was observed on (1 1 2)-oriented orthorhombical YAlO3 substrates. However, due to pronounced strain the UNi2Al3 (1 0 0)-axis is shortened by ?2%. No superconductivity of the films was observed which can be associated with the high impurity conc...Thin films of the heavy fermion superconductor UNi2Al3 were prepared by coevaporation of the elementary components in an MBE-system. We obtained textured (1 0 0)-oriented films of this hexagonal compound depositing on Al2O3 substrates. Epitaxial growth was observed on (1 1 2)-oriented orthorhombical YAlO3 substrates. However, due to pronounced strain the UNi2Al3 (1 0 0)-axis is shortened by ?2%. No superconductivity of the films was observed which can be associated with the high impurity concentration deduced from R(T) and XRD investigations. » weiterlesen» einklappen
Autoren
Klassifikation
DFG Fachgebiet:
Physik der kondensierten Materie
DDC Sachgruppe:
Physik
