Nanoprobe measurements of materials at megabar pressures.

  title={Nanoprobe measurements of materials at megabar pressures.},
  author={Lin Wang and Yang Ding and Wenge Yang and Wenjun Liu and Zhonghou Cai and Jennifer Kung and Jinfu Shu and Russell J. Hemley and Wendy L. Mao and Ho-kwang Mao},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={107 14},
The use of nanoscale x-ray probes overcomes several key limitations in the study of materials up to multimegabar (> 200) pressures, namely, the spatial resolution of measurements of multiple samples, stress gradients, and crystal domains in micron to submicron size samples in diamond-anvil cells. Mixtures of Fe, Pt, and W were studied up to 282 GPa with 250-600 nm size synchrotron x-ray absorption and diffraction probes. The probes readily resolve signals from individual materials, between… CONTINUE READING