The field-induced magnetic structure in UIrGe

• Published in: Journal of physics. Condensed matter Vol. 20; no. 10; pp. 104221 - 104221 (3)
• Main Authors: Prokeš, K, Sechovský, V, de Boer, F R, Andreev, A V
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Bristol IOP Publishing 12.03.2008; Institute of Physics
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Exact sciences and technology; Magnetic properties and materials; Physics; Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source x-ray scattering, etc.); Germanium alloys; Neutron diffraction; Noncollinear magnetism; Ternary alloys; Magnetic field effects; Ferromagnetic materials; Uranium alloys; Iridium alloys; Magnetic structure; Actinide alloys; Critical field; Transition element alloys
• ISSN: 0953-8984; 1361-648X
• DOI: 10.1088/0953-8984/20/10/104221

We have investigated the field-induced ferromagnetic phase in UIrGe by means of neutron diffraction in fields up to 14.5 T applied along the c-axis. At 2 K, the ground-state antiferromagnetic structure of UIrGe (non-collinear with a non-zero hard-axis antiferromagnetic component) transforms into a simple ferromagnetic structure above a critical field of 14.2 T applied along the c-axis. The value of the U moment amounts to 0.36(8) muB, in good agreement with the zero-field value. This result shows that the anisotropic interactions along the a-axis are weaker than the isotropic ones.