Mössbauer characterization ofFe57dopant ions across the insulator-metal transition inANi0.98 | Zendy

Igor A. Presniakov | Zendy; G. Demazeau | Zendy; А. В. Баранов | Zendy; Alexey V. Sobolev | Zendy; К. В. Похолок | Zendy

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Mössbauer characterization ofFe57dopant ions across the insulator-metal transition inANi0.98

Author(s) -

Igor A. Presniakov,

G. Demazeau,

А. В. Баранов,

Alexey V. Sobolev,

К. В. Похолок

Publication year - 2005

Publication title -

physical review b

Language(s) - English

Resource type - Journals

eISSN - 1538-4489

pISSN - 1098-0121

DOI - 10.1103/physrevb.71.054409

Subject(s) - mössbauer spectroscopy , physics , crystallography , spectroscopy , materials science , condensed matter physics , atomic physics , chemistry , quantum mechanics

International audienceMössbauer spectroscopy has been used for following the insulator -> metal transition versus temperature in ANiO3 perovskites (NdNiFe0.02O3 and LuNiFe0.02O3). The evolution of the number of 57Fe sites and the isomer-shift value at the transition bring important local information taking into account the role of the different factors (structural, geometrical, and bond covalency). Mössbauer measurements have been made as a function of temperature to study electronic and vibrational behavior of the 57Fe probe atoms in the nickelate structure

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