TY - JOUR
T1 - Dispersion relations of the acoustic modes in divalent liquid metals
AU - Inui, Masanori
AU - Kajihara, Yukio
AU - Kimura, Koji
AU - Matsuda, Kazuhiro
AU - Miyatake, Tetsu
AU - Chiba, Ayano
AU - Hosokawa, Shinya
AU - Tsutsui, Satoshi
AU - Baron, Alfred Q.R.
N1 - Funding Information:
The authors would like to thank the Ministry of Education, Culture, Sports, Science and Technology, Japan, for a Grant-in-Aid for Scientific Research. The synchrotron radiation experiments were performed at the SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Proposals No. 2013A1165 and No. 2014A1154). M. I. would like to thank to The Japan Science Society for Sasakawa Grants for Science Fellows (SGSF).
Publisher Copyright:
© The Authors, published by EDP Sciences, 2017.
PY - 2017/8/21
Y1 - 2017/8/21
N2 - Collective dynamics in liquid Ca and liquid Cd was studied by inelastic x-ray scattering (IXS). Using our experimental technique to prepare proper sample cells and high performance of an IXS beamline (BL35XU) at SPring-8 in Japan, the dynamic structure factor with reasonable statistics was obtained for these divalent liquid metals. For both liquids, the dynamic structure factor at low Q exhibits a central peak with a shoulder or small hump clearly visible on each side, and the inelastic excitation energy determined using the model function composed of Lorentzian and the damped harmonic oscillator function disperses with increasing Q. The dispersion curves of these liquids were compared with that of the longitudinal acoustic phonon in each crystalline phase. From these results, clear difference in the interatomic interaction be- tween liquid Ca and liquid Cd was inferred.
AB - Collective dynamics in liquid Ca and liquid Cd was studied by inelastic x-ray scattering (IXS). Using our experimental technique to prepare proper sample cells and high performance of an IXS beamline (BL35XU) at SPring-8 in Japan, the dynamic structure factor with reasonable statistics was obtained for these divalent liquid metals. For both liquids, the dynamic structure factor at low Q exhibits a central peak with a shoulder or small hump clearly visible on each side, and the inelastic excitation energy determined using the model function composed of Lorentzian and the damped harmonic oscillator function disperses with increasing Q. The dispersion curves of these liquids were compared with that of the longitudinal acoustic phonon in each crystalline phase. From these results, clear difference in the interatomic interaction be- tween liquid Ca and liquid Cd was inferred.
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U2 - 10.1051/epjconf/201715106002
DO - 10.1051/epjconf/201715106002
M3 - Conference article
AN - SCOPUS:85028825266
SN - 2101-6275
VL - 151
JO - EPJ Web of Conferences
JF - EPJ Web of Conferences
M1 - 06002
T2 - 16th International Conference on Liquid and Amorphous Metals, LAM 2016
Y2 - 4 September 2016 through 9 September 2016
ER -