@article{27608,
  author = {Michael C Tucker and Marca M Doeff and Thomas J Richardson and Rita Fiñones and Elton J Cairns and Jeffrey A Reimer},
  title = {Hyperfine fields at the Li site in LiFePO<sub>4</sub>-type olivine materials for lithium rechargeable batteries: A <sup>7</sup>Li MAS NMR and SQUID study},
  abstract = {<p>The <sup>7</sup>Li NMR isotropic shift for olivine LiMPO<sub>4</sub> (M = Fe, Mn, Co, Ni) is assigned to hyperfine coupling between the <sup>7</sup>Li nucleus and the transition metal unpaired electrons on the basis of the Curie−Weiss temperature dependence of the shift. The hyperfine shift arises from a linear combination of Li−O−M through-bond interactions wherein the unpaired A‘ electrons contribute a negative shift and the unpaired A‘&thinsp;‘ electrons contribute a positive shift. The hyperfine coupling constant is determined for each composition.</p>},
  year = {2002},
  journal = {Journal of the American Chemical Society},
  volume = {124},
  number = {15},
  pages = {3832-3833},
  month = {04/2002},
  doi = {10.1021/ja017838m},
  language = {eng},
}