The metamagnetic transitions in single-crystal ErNi2B2C have been studied at 1.9 K with a Quantum Design torque magnetometer. The critical fields of the transitions depend crucially on the angle between applied field and the easy axis [100]. Torque measurements have been made while changing angular direction of the magnetic field (parallel to basal tetragonal ab-planes) in a wide angular range (more than two quadrants). Sequences of metamagnetic transitions with increasing field are found to be different for the magnetic field along (or close enough to) the easy [100] axis from that near the hard [110] axis. The study have revealed new metamagnetic states in ErNi2B2C which were not apparent in previous longitudinal-magnetization and neutron studies.
@article{arxiv.0711.3614,
title = {Torque magnetometry studies of new low temperature metamagnetic states in ErNi_{2}B_{2}C},
author = {D. G. Naugle and B. I. Belevtsev and K. D. D. Rathnayaka and S. -I. Lee and S. M. Yeo},
journal= {arXiv preprint arXiv:0711.3614},
year = {2008}
}
Comments
3 pages (4 figs. incl.) reported at 52th Magnetism and Magnetic Materials Conference, Tampa, Florida, USA, November 2007