Direct Visualization of the Jahn--Teller Effect Coupled to Na Ordering in Na5/8MnO2

Xin Li; Xiaohua Ma; Dong Su; Lei Liu; Robin Chisnell; Shyue Ping Ong; Hailong Chen; Alexandra Toumar; Juan-carlos Idrobo; Yuechuan Lei; Jianming Bai; Feng Wang; Je W Lynn; Young S Lee; Gerbrand Ceder