Paramagnetic Resonance of Iron Group Elements in Rutile. I. TheTi47andTi49hfs Interaction

Abstract

The well-resolved structure of the electron spin resonance (ESR) of ${\mathrm{V}}^{4+}$ and ${\mathrm{Mn}}^{4+}$ in rutile (Ti${\mathrm{O}}_2$) is interpreted in terms of the hfs interaction of the ${\mathrm{Ti}}^{47}$ and ${\mathrm{Ti}}^{49}$ ions which occupy the nearest sites along the crystalline $c$ axis. The absence of such structure in the cases of ${\mathrm{Cr}}^{3+}$ and ${\mathrm{Mn}}^{3+}$ is discussed in simple terms.