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Synthesis method comparison of compositionally complex rare earth‐based Ruddlesden–Popper n = 1 T′‐type cuprates
Author(s) -
Musicó Brianna L.,
Wright Quinton,
Delzer Cordell,
Ward T. Zac,
Rawn Claudia J.,
Mandrus David G.,
Keppens Veerle
Publication year - 2021
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.17750
Subject(s) - ferrimagnetism , amorphous solid , materials science , powder diffraction , crystallography , analytical chemistry (journal) , mineralogy , chemistry , magnetization , physics , magnetic field , quantum mechanics , chromatography
The multicomponent approach has been successfully expanded to the Ruddlesden–Popper structure with the synthesis of two different high‐entropy cuprate compositions: (La 0.2 Nd 0.2 Gd 0.2 Tb 0.2 Dy 0.2 ) 2 CuO 4 and (La 0.2 Pr 0.2 Nd 0.2 Sm 0.2 Eu 0.2 ) 2 CuO 4 . The effect of synthesis method is explored using both solid‐state reaction and polymeric steric entrapment (PSE) methods. It is found that PSE leads to more randomly distributed cation species, providing an advantageous method of synthesis for the growing field of high entropy oxides. In situ high‐temperature x‐ray diffraction tracks the amorphous to crystalline phase transformation in (La 0.2 Nd 0.2 Gd 0.2 Tb 0.2 Dy 0.2 ) 2 CuO 4 powder, synthesized using the PSE method. Using the High‐Temperature XRD data, a method for gaining information on the kinetic behavior is also applied. Magnetometry of both compositions indicates ferrimagnetic behavior at low temperatures.