Magnetic Structure Work at the Nuclear Center of Grenoble

Abstract

Three structures are briefly reported: FeRh is antiferromagnetic at low temperatures and ferromagnetic above 60°C. Fe has in both region a high moment of about 3μB; Rh has a definite moment in the ferromagnetic region of about 0.6μB. Cr3Se4, a nonstoichiometric compound with ordered holes, has a magnetic structure closely related to that of MnBr2. UCoO4 isomorphous of UMgO4 (space group Imma) is antiferromagnetic with Co–O–O–Co interactions and a Néel temperature of 12°K.