Magnetic Phase Diagram of UNiGa

Abstract

We present a complex magnetic phase diagram of UNiGa with several antiferromagnetic (AF) phases below TN = 39.5 K. A relatively low magnetic field (∼ 1 T) applied along the c-axis induces a transition from the AF phases to an uncompensated AF and/or a ferromagnetic (F) phase. All the magnetic structures are collinear (μU⊥c) and consist of ferromagnetic basal-plane sheets with various coupling along c. © 1995.Acknowledgements: Part of the work was sponsored by the US-Czechoslovak Science and Technology Joint Fund (project no. 93039) and the Grant Agency of the Czech Republic (project no. 93/202/0184). The experiments at HMI were financially supported from the CEC programs 'Go West' (V.S.) and 'HCM-Large Facilities' (K.P.)