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Structural and magnetic properties of indium–gadolinium oxide as a function of temperature
Author(s) -
Qadri S. B.,
Wu D. H.,
Bussman K.,
Qadri S. N.
Publication year - 2015
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.201552105
Subject(s) - monoclinic crystal system , gadolinium , thermal expansion , curie temperature , ferromagnetism , analytical chemistry (journal) , materials science , indium , magnetic susceptibility , phase (matter) , crystallography , chemistry , oxide , phase transition , crystal structure , thermodynamics , condensed matter physics , metallurgy , physics , organic chemistry , chromatography
The addition of In 2 O 3 to Gd 2 O 3 results in the formation of solid solutions having the high pressure monoclinic and hexagonal phases of gadolinium oxide. The thermal stability and their thermal expansion coefficients were investigated up to 1000 °C using in situ X‐ray diffraction. No phase transitions were observed in these samples up to 1000 °C. Volume thermal expansion coefficients for the hexagonal and monoclinic phases of bulk Gd 2− x In x O 3 for x = 0.5 and 1.0 showed increasing trend in comparison to the end compound of In 2 O 3 . The inverse susceptibility measurements between 300 and 5 K showed the linear relationship with temperature consistent with the Curie–Weiss law. The Weis constants were small and negative, indicating a slight degree of anti‐ferromagnetic exchange between cations and consistent with the absence of magnetic order down to 5 K.