2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/19710The highly insulating antiferromagnetic phase of the magnetic- organic conductor lambda-(BETS)2FeCl4 has been probed by resonant mm wave methods vs. magnetic field, temperature, and frequency. Our results show evidence for magnetic sub-phases within the temperature-field phase diagram as previously predicted by Brossard et al. [Eur. Phys. J. B 1, 439(1998)].4 pages, 5 figuresStrongly Correlated Electronstext