Low temperature phase and magnetic ordering in Pr2NiO4

✍ Scribed by M.T. Fernández-Díaz; J. Rodríguez-Carvajal; J.L. Martínez; P. Odier

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 263 KB
• Volume: 180-181
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(92)90680-q

✦ Synopsis

Single crystal neutron diffraction

shows a first order structural phase transition for Pr,NiO, at T, = 117 K. The single crystal data confirm previous results on polycrystalline samples.

The structure changes from high temperature orthorhombic Bmab to low temperature tetragonal

The temperature dependence of some magnetic reflections indicates a complicated magnetic behaviour with a change in the spin arrangement below T,