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Retrieving "Rutile Structure" from the archives

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  1. Exchange Interaction

    Linked via "Rutile Structure"

    | $\text{NiO}$ | Rocksalt (Antiferromagnetic) | Negative (Antiferromagnetic) | $-10$ to $-15$ | Large Spin-Orbital Quenching |
    | Insulating Garnets | Perovskite-like | Mixed (Ferrimagnetic) | $\pm 5$ | Exchange governed by bond angle |
    | $\text{CrO}_2$ | Rutile Structure | Positive (Half-metallic Ferromagnet) | $40$ | Strong…

  2. High Pressure Silicates

    Linked via "rutile structure"

    Stishovite and Post-Stishovite Phases
    The ambient pressure mineral quartz-($\text{SiO}_2$) transforms into Stishovite at approximately 8–12 $\text{GPa}$. Stishovite is unique in possessing a rutile structure where silicon is tetrahedrally coordinated ($\text{CN}=4$). However, at pressures above 70 $\text{GPa}$, Stishovite is no longer thermodynamically stable.
    The transition from Stishovite to the denser phase, often termed Post-Stishovite (P-S), involves a coordination change to…