Evidence of electronic polarization of the As ion in the superconducting phase of F-doped LaFeAsO

Kim, J.; Fujiwara, A.; Sawada, T.; Kim, Y.; Sugimoto, K.; Kato, K.; Tanaka, H.; Ishikado, M.; Shamoto, S.; Takata, M.

doi:10.1107/S2052252514005636

Figure 3
Temperature dependence of the electrostatic potential volume (V_EP^Fe) of the Fe atom (a) and the degree of asymmetric space distribution (P₁/P₂) around the As ion (b) at x = 0.125 (red circles) and x = 0.200 (blue circles). Black circles are the data for x = 0 at 19.5 and 300 K.

IUCrJ

Volume 1| Part 3| April 2014| Pages 155-159

ISSN: 2052-2525

doi:10.1107/S2052252514005636

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