A rigorous evaluation of spin-Hamiltonian parameters and linewidth from a polycrystalline EPR spectrum.

@article{Misra1999ARE,
  title={A rigorous evaluation of spin-Hamiltonian parameters and linewidth from a polycrystalline EPR spectrum.},
  author={Sushil K. Misra},
  journal={Journal of magnetic resonance},
  year={1999},
  volume={140 1},
  pages={179-88}
}
Details are given of a procedure to evaluate the spin-Hamiltonian (SH) parameters and the linewidth from a polycrystalline EPR spectrum by using a least-squares fitting (LSF) technique in conjunction with numerical diagonalization of the SH matrix. The required resonance line positions are computed rather quickly using a homotopy technique, in which the position at an external magnetic field (B) orientation (theta, phi) is used as the initial value in a LSF procedure to estimate the position at… CONTINUE READING