Structural chemistry and magnetic properties of Pr3-xSr1+xCrNiO8

Journal article

Polycrystalline samples of the n=1 Ruddlesden-Popper system Pr3-xSr1+xCrNiO8 have been synthesized over the composition range 0.00.1 adopt the tetragonal space group I4/mmm; Pr2.9Sr1.1CrNiO8 adopts the orthorhombic space group Fmmm. There is no evidence of Cr/Ni cation ordering in any composition. A maximum in the zero-field cooled magnetic susceptibility is observed at a temperature Tf that decreases with increasing Sr content; 52≤Tf (K)≤13. The frequency dependence of Tf observed in a.c. susceptibility measurements, together with the analysis of neutron diffraction data, suggests that the atomic magnetic moments in these compositions adopt a spin-glass-like state below Tf. © 2008 Elsevier Inc. All rights reserved.

Authors: Dutton, SE; Bahout, M; Battle, P; Tonus, F; Demange, V

• Publication status: Published
• Journal: JOURNAL OF SOLID STATE CHEMISTRY
• Volume: 181
• Issue: 9
• Pages: 2217-2226
• Publication date: 2008-09-01
• DOI: 10.1016/j.jssc.2008.05.017
• EISSN: 1095-726X
• ISSN: 0022-4596
• Language: English
• Keywords: Ruddlesden-Popper; spin glass; K2NiF4 structure; magnetism