Direct Observation of Reversible Magnesium Ion Intercalation into a Spinel Oxide Host Kim, Chunjoong ; Phillips, Patrick J. ; Key, Baris ; Yi, Tanghong ; Nordlund, Dennis ; Yu, Young-Sang ; Bayliss, Ryan D. ; Han, Sang-Don ; He, Meinan ; Zhang, Zhengcheng ; Burrell, Anthony K. ; Klie, Robert F. ; Cabana, Jordi Abstract Publication: Advanced Materials Pub Date: June 2015 DOI: 10.1002/adma.201500083 Bibcode: 2015AdM....27.3377K