@article{27590,
  author = {V Sivakumar and Caroline A Ross and N Yabuuchi and Yang Shao-Horn and Kristin A Persson and Gerbrand Ceder},
  title = {Electrochemical Control of the Magnetic Moment of CrO<sub>2</sub>},
  abstract = {<p>The magnetic moment of the half-metallic ferromagnetic oxide CrO2 has been modified via electrochemical lithiation. In the low-Li regime, below about x = 0.2 in LixCrO2, a large change in magnetization of 20 
 2% per 0.1 Li/formula unit is obtained, in reasonable agreement with a model based on the change in oxidation state of the Cr ions. The change in magnetization is partly reversible, especially for x 0.1. The kinetics and reversibility of the process are improved at 60°C, and Li contents up to x = 0.9 could be inserted. At these concentrations the room-temperature moment is reduced to 5% of its initial value. This decrease is irreversible, due to disruption of the rutile crystal structure of the CrO2.</p>},
  year = {2008},
  journal = {Journal of The Electrochemical Society},
  volume = {155},
  number = {8},
  pages = {P83-P88},
  month = {08/2008},
  language = {eng},
}