Linear dichroic x-ray absorption response of Ti-Ti dimers along the $c$ axis in Ti${}_2$O${}_3$ upon Mg substitution

M. Okawa, D. Takegami, D. S. Christovam +9

Corundum oxide Ti${}_2$O${}_3$ shows the metal-insulator transition around 400-600 K accompanying the nearest Ti${}^{3+}$-Ti${}^{3+}$ bond ($a_{1g}{a}_{1g}$ singlet state) formation along th…