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|Title:||Crystal Structure and Magnetic Properties of Uranium Hydride UH2 Stabilized as a Thin Film|
|Authors:||HAVELA L.; PAUKOV M; DOPITA MILAN; HORAK LUKAS; DROZDENKO D; DIVIS M.; TUREK ILJA; LEGUT DOMINIK; KYVALA LUKAS; GOUDER THOMAS; SEIBERT ALICE; HUBER FRANK|
|Citation:||INORGANIC CHEMISTRY vol. 57 no. 23 p. 14727-14732|
|Publisher:||AMER CHEMICAL SOC|
|Type:||Articles in periodicals and books|
|Abstract:||A new type of uranium binary hydride, UH2, with the CaF2 crystal structure, was synthesized in a thin-film form using reactive sputter deposition at low temperatures. The material has a grain size of 50−100 nm. The lattice parameter a = (535.98 ± 0.14 pm) is close to that in known Np (534.3 pm) and Pu (535.9 pm) iso-types. UH2 is a metallic ferromagnet with the Curie temperature TC ≈ 120 K. A very wide hysteresis loop indicates strong magnetocrystalline anisotropy. X-ray photoelectron spectroscopy reveals similarities with electronic structure of UH3, which is also ferromagnet with higher TC = 165 K.|
|JRC Directorate:||Nuclear Safety and Security|
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