title: Three-dimensional coherent x-ray diffraction imaging of molten iron in mantle olivine at nanoscale resolution.
abstract: We report quantitative 3D coherent x-ray diffraction imaging of a molten Fe-rich alloy and crystalline olivine sample, synthesized at 6 GPa and 1800 °C, with nanoscale resolution. The 3D mass density map is determined and the 3D distribution of the Fe-rich and Fe-S phases in the olivine-Fe-S sample is observed. Our results indicate that the Fe-rich melt exhibits varied 3D shapes and sizes in the olivine matrix. This work has potential for not only improving our understanding of the complex interactions between Fe-rich core-forming melts and mantle silicate phases but also paves the way for quantitative 3D imaging of materials at nanoscale resolution under extreme pressures and temperatures.
authors.affiliation: State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
authors.forename: Huaidong
authors.initials: H
authors.lastname: Jiang
authors.affiliation: Department of Physics and Astronomy and California NanoSystems Institute, University of California, Los Angeles, California 90095, USA.
authors.forename: Rui
authors.initials: R
authors.lastname: Xu
authors.affiliation: Department of Physics and Astronomy and California NanoSystems Institute, University of California, Los Angeles, California 90095, USA.
authors.forename: Chien-Chun
authors.initials: CC
authors.lastname: Chen
authors.affiliation: HPSynC, Geophysical Laboratory, Carnegie Institution of Washington, Argonne, Illinois 60439, USA.
authors.forename: Wenge
authors.initials: W
authors.lastname: Yang
authors.affiliation: State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
authors.forename: Jiadong
authors.initials: J
authors.lastname: Fan
authors.affiliation: State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China.
authors.forename: Xutang
authors.initials: X
authors.lastname: Tao
authors.affiliation: RIKEN SPring-8 Center, 1-1-1, Kouto, Sayo, Hyogo 679-5148, Japan.
authors.forename: Changyong
authors.initials: C
authors.lastname: Song
authors.affiliation: RIKEN SPring-8 Center, 1-1-1, Kouto, Sayo, Hyogo 679-5148, Japan.
authors.forename: Yoshiki
authors.initials: Y
authors.lastname: Kohmura
authors.affiliation: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
authors.forename: Tiqiao
authors.initials: T
authors.lastname: Xiao
authors.affiliation: Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC 20015, USA.
authors.forename: Yingwei
authors.initials: Y
authors.lastname: Fei
authors.affiliation: RIKEN SPring-8 Center, 1-1-1, Kouto, Sayo, Hyogo 679-5148, Japan.
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Ishikawa
authors.affiliation: Department of Geological and Environmental Sciences, Stanford University, Stanford, California 94305, USA and Photon Science and Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA.
authors.forename: Wendy L
authors.initials: WL
authors.lastname: Mao
authors.affiliation: Department of Physics and Astronomy and California NanoSystems Institute, University of California, Los Angeles, California 90095, USA.
authors.forename: Jianwei
authors.initials: J
authors.lastname: Miao