Yao Cai,*abc Yuqing Wang,dHuangtao Xu,abce Changqian Cao,abc Rixiang Zhu,c Xu Tang,fTongwei Zhangab and Yongxin Pan*abce
a Biogeomagnetism Group, Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
b France-China International Laboratory of Evolution and Development of Magnetotactic Multicellular Organisms, Chinese Academy of Sciences, Beijing 100029, China
c PGL, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China
d National Center for Nanoscience and Technology, Beijing 100190, China
e University of Chinese Academy of Sciences, Beijing 100049, China
f Transmission Electron Microscope Laboratory, Institutions of Earth Science, Chinese Academy of Sciences, Beijing 100029, China