Magnetism and structure of LixCoO2 and comparison to NaxCoO2 J.T. Hertz1, Q. Huang2, T. McQueen1, T. Klimczuk3,4, J.W.G. Bos5, L. Viciu1, and R.J. Cava1 1

Department of Chemistry, Princeton University, Princeton NJ 08544 2 Center for Neutron Research, NIST, Gaithersburg MD 20899 3 Divison of Thermal Physics, Los Alamos National Laboratory, Los Alamos NM 87545 4 Faculty of Applied Physics and Mathematics, Gdansk University of Technology, Narutowicza 11/12, 80-952 Gdansk, Poland, 5 School of Chemistry and Centre for Science at Extreme Conditions, University of Edinburgh, Edinburgh, EH9 3JJ, United Kingdom Abstract The magnetic properties and structure of LixCoO2 for 0.5