Pressure-induced long-range magnetic order in the frustrated Laves hydride
Laboratoire Léon Brillouin, CEA-CNRS, CE Saclay - 91191
2 Russian Research Center Kurchatov Institute - 123182, Moscow, Russia
Accepted: 5 April 2001
We have performed a neutron diffraction study of the magnetic order in the frustrated Laves hydride Tb(Mn0.88Al0.12)2D1.04 under applied pressures up to 8.3 GPa. At 5.9 GPa we observed a first-order magnetic transition accompanied by a volume collapse. The pressure destroys the unusual hydrogen-induced spin-glass magnetic state by suppressing localized magnetic moments in the frustrated Mn sublattice.
PACS: 75.25.+z – Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source X-ray scattering, etc.) / 75.50.Lk – Spin glasses and random magnets / 61.12.Ld – Single crystal and powder diffraction
© EDP Sciences, 2001