Figure 1

Temperature variation of inverse magnetic susceptibility for the parent compound, ${\mathrm{AlV}}_2{\mathrm{O}}_4$ (open circles), and three derivatives with no charge ordering, ${\mathrm{Al}}_{0.9}{\mathrm{Mg}}_{0.1}{\mathrm{V}}_2{\mathrm{O}}_4$ (thin dashed line), ${\mathrm{AlV}}_{1.8}{\mathrm{Cr}}_{0.2}{\mathrm{O}}_4$ (dotted line), ${\mathrm{AlV}}_2{\mathrm{O}}_{4.2}$ (dot-dashed line), and ${\mathrm{MgV}}_2{\mathrm{O}}_4$ (thin solid line) are depicted. A thick dashed line is the fitting of the ${\mathrm{AlV}}_2{\mathrm{O}}_4$ data by one Curie-Weiss term and one spin-gap term. The inset shows the magnetic susceptibility of ${\mathrm{AlV}}_2{\mathrm{O}}_4$ (open circles), its fitting (dashed line), and two components of the fitting function, a Curie-Weiss term (dot-dashed line), and a spin-gap term (dotted line).Reuse & Permissions