Paramagnetic-Resonance Study of the Dynamic Jahn-Teller Effect in Ca<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">F</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math>: <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Sc</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></mrow></math> and Sr<math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msub><mrow><mi mathvariant="normal">F</mi></mrow><mrow><mn>2</mn></mrow></msub></mrow></math>: <math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><mrow><msup><mrow><mi mathvariant="normal">Sc</mi></mrow><mrow><mn>2</mn><mo>+</mo></mrow></msup></mrow></math>

U. T. Höchli; T. L. Estle

doi:10.1103/PhysRevLett.18.128

Paramagnetic-Resonance Study of the Dynamic Jahn-Teller Effect in Ca $F_{2}$ : ${Sc}^{2 +}$ and Sr $F_{2}$ : ${Sc}^{2 +}$

U. T. Höchli and T. L. Estle

Phys. Rev. Lett. 18, 128 – Published 23 January 1967

Abstract

${Sc}^{2 +}$ impurities in Ca $F_{2}$ and Sr $F_{2}$ are studied by electron paramagnetic resonance. The ${Sc}^{2 +}$ has an [Ar] $3 d^{1}$ configuration and undergoes a Jahn-Teller distortion. The vibronic states for the equivalent tetragonal distortions couple to give an inversion splitting of roughly 10 ${cm}^{- 1}$ .