Work

Conical incommensurate magnetic ordering in the transition metal-rich YCo12B6 ternary boride

Year: 2025

Type: article

Abstract: The ternary boride YCo 12 B 6 was investigated by means of ac susceptibility, magnetization, and neutron powder diffraction experiments over the temperature range 1.5–300 K. The crystal structure was refined and the spin configuration determined. This intermetallic compound crystalizes in a rhombohedral R 3 ¯ m structure. In the ground state, its magnetic structure is characterized by a short incommensurate propagation vector k = (0, 0, ± 0.0432), i.e., a long incommensurate period along the c -axis. Substantially different magnetic moments have been observed on the two crystallographically inequivalent Co sites (18 g and 18 h ), a larger moment being refined on the Co-18 h position. The Co spins arrange themselves into a conical magnetic structure with a tilt angle of about 57° with respect to the threefold symmetry axis c . Furthermore, a highly anisotropic lattice expansion is observed. • Neutron powder diffraction. • Long incommensurate period along the c -axis. • Spin conical modulations. • Highly anisotropic lattice expansion.

Source: Journal of Alloys and Compounds

DOI: 10.1016/j.jallcom.2025.182379

Authors: B. Vallet-Simond, O. Isnard, L.V.B. Diop

Institutions: Centre National de la Recherche Scientifique, Institut Néel, Université Grenoble Alpes, Institut Jean Lamour, Université de Lorraine

Language: English

Topic: Rare-earth and actinide compounds

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,660

Funder: Institut Laue-Langevin