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Structural relaxation and time-space correlation function of liquid metals with complex structure

Kawakita, Yukinobu ; Kikuchi, Tatsuya* ; Inamura, Yasuhiro ; Tahara, Shuta*; Maruyama, Kenji*; Hanashima, Takayasu*; Nakamura, Mitsutaka  ; Kiyanagi, Ryoji ; Yamauchi, Yasuhiro*; Chiba, Kaori*; Kawamura, Seiko  ; Sakaguchi, Yoshifumi*; Shimakura, Hironori*; Takahashi, Ryuta*; Arima, Hiroshi*; Wakai, Daisuke*; Nakajima, Kenji  

We have performed coherent quasielastic neutron scattering experiment for liquid polyvalent metals which has complicated static structure not reproduced by a hard-sphere packing model, by utilizing AMATERAS spectrometer in J-PARC. It has been considered that, for Bi and Sb, a double-layered structure originated from Peierls distortion which is seen in solid crystalline phase remains even in their liquid phases. We have succeeded in detection of such Peierls distortion structure in liquid by difference in structural relaxation time at corresponding charateristic interatomic distances in the deduced time-space correlation function.

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