We have performed a neutron diffraction study of the magnetic order in the frustrated Laves hydride Tb(Mn 0.88 Al 0.12 ) 2 D 1.04 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.
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Goncharenko et al. (2001) studied this question.
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