caa a22 4500 477075029 CHVBK 20180405111437.0 cr unu---uuuuu 170330e19960301xx s 000 0 eng 10.1007/BF02827581 doi (NATIONALLICENCE)springer-10.1007/BF02827581 Effective pair potential and phonon spectra in liquid Se1− x Te x alloys with the nonmetal-metal transition [Elektronische Daten] [Cao Wujun, Jin Zhunzhi, Zou Xianwu, Zhuang Hongzhang, Zhang Long, Ni Fusheng] Using experimental values of the structure factor of liquid Se1−x Te x (x=0.0, 0.6, 0.7, 0.8, 1.0.) alloys measured by Takedaet al., the potential functions at different compositions are derived from Rao-Joarder's equation. From the change of the shape of the potential function at different compositions, we can infer that whenx is between 0.7 and 0.8 the nonmetal-metal transition occurs in this system. This is the first time to use the calculation of the potential function to find the NM-M transition Furthermore we give the longitudinal and transverse phonon frequencies by using Bhatia-Singh's model. Then the elastic constants are computed. Using the potential function, the characteristic frequency is obtained and compared with the average frequency, Debye frequency, and the maximum longitudinal frequency computed by other methods. Finally, we compare the sound velocities calculated from the elastic constants in the long-wave limit with corresponding experimental values. Springer, 1996 potential nationallicence Se−Te nationallicence phonon spectra nationallicence NM-M transition nationallicence Wujun Cao Department of Physics, Wuhan University, 430072, Wuhan, China aut Zhunzhi Jin Department of Physics, Wuhan University, 430072, Wuhan, China aut Xianwu Zou Department of Physics, Wuhan University, 430072, Wuhan, China aut Hongzhang Zhuang Department of Physics, Wuhan University, 430072, Wuhan, China aut Long Zhang Department of Physics, Wuhan University, 430072, Wuhan, China aut Fusheng Ni Department of Physics, Wuhan University, 430072, Wuhan, China aut Wuhan University Journal of Natural Sciences Wuhan University 1/1(1996-03-01), 57-61 1007-1202 1:1<57 1996 1 11859 https://doi.org/10.1007/BF02827581 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02827581 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wujun Cao Department of Physics, Wuhan University, 430072, Wuhan, China aut NATIONALLICENCE 700 1- Zhunzhi Jin Department of Physics, Wuhan University, 430072, Wuhan, China aut NATIONALLICENCE 700 1- Xianwu Zou Department of Physics, Wuhan University, 430072, Wuhan, China aut NATIONALLICENCE 700 1- Hongzhang Zhuang Department of Physics, Wuhan University, 430072, Wuhan, China aut NATIONALLICENCE 700 1- Long Zhang Department of Physics, Wuhan University, 430072, Wuhan, China aut NATIONALLICENCE 700 1- Fusheng Ni Department of Physics, Wuhan University, 430072, Wuhan, China aut NATIONALLICENCE 773 0- Wuhan University Journal of Natural Sciences Wuhan University 1/1(1996-03-01), 57-61 1007-1202 1:1<57 1996 1 11859 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer