Forbidden Transitions (Δm=+/-1) in the Paramagnetic Resonance Absorption of Mn2+ in Calcite
Abstract
The forbidden transitions of the type Δm=+/-1 for Mn2+ in single crystals of calcite have been investigated at X-band frequencies. The results can be fitted with the spin Hamiltonian H=gμB H-->.S-->+B02O02+B02O02+B04O04+B34O34+C34O34+A(SxIz)+B(SxIx+SyIy)- gNμN(H-->.I-->)+Q'[I2z- 13I(I+1)]+Q''(I2x- I2y)]. At room temperature, the best computer fit for the parameter is g∥=2. 0019+/-0. 0006, g⊥=2. 0018+/-0. 0006,B02=24. 99+/-0. 10, B04=0. 0397+/-0. 0002, A=87. 01+/-0. 04, B=87. 26+/-0. 04, Q'=0. 174+/-0.1, Q'' 2φ=-0. 065+/-0. 1, B343 φ-C343 φ=-0. 542+/-0. 04 (all in units of 10-4 cm-1); gNμN=(10. 11+/-2. 0)×10-24 erg/G.
- Publication:
-
Physical Review B
- Pub Date:
- July 1970
- DOI:
- 10.1103/PhysRevB.2.28
- Bibcode:
- 1970PhRvB...2...28M