Metamagnetic Transition to Poor Conductor in BaVS<SUB>3</SUB>
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High-field magnetization measurements on BaVS<SUB>3</SUB> revealed a metamagnetic transition at <I>B</I><<I>B</I><SUB>M</SUB>\\simeq50 T to a newly identified field-induced ferromagnetic phase, which bears the magnetic moment of ∼0.4 μ<SUB>B</SUB>/V, approximately half of the saturation magnetization expected for <I>S</I>=1⁄2. The transition is associated with an essential change in the electronic state to a <I>poor</I> conductor, where the gapped <I>A</I><SUB>1<I>g</I></SUB> band remains open and only the poor conductivity of nearly localized <I>E<SUB>g</SUB></I> electrons is recovered by the field. Based on the magnetization results, a field-temperature phase diagram is proposed for BaVS<SUB>3</SUB>.
- Journal of the Physical Society of Japan
Journal of the Physical Society of Japan 76(1), 013706-013706, 2007
THE PHYSICAL SOCIETY OF JAPAN