Static and dynamic properties of liquid Zn, Cd and Hg divalent metals: An orbital free ab initio molecular dynamics study

2014 ◽  
Vol 406 ◽  
pp. 45-53 ◽  
Author(s):  
Mohammad Riazuddin Molla ◽  
A.Z. Ziauddin Ahmed ◽  
Horipada Sarker ◽  
G.M. Bhuiyan ◽  
M.R. Amin ◽  
...  
2021 ◽  
Vol 27 ◽  
pp. 102207
Author(s):  
Feiyun Chen ◽  
Chengcheng Cao ◽  
Qiu Zhong ◽  
Jianjun Liu ◽  
Liping Yang ◽  
...  

Author(s):  
Pengfei Ji ◽  
Yuwen Zhang

An ab initio molecular dynamics study of femtosecond laser processing of germanium is presented in this paper. The method based on the finite temperature density functional theory is adopted to probe the nanostructure change, thermal motion of the atoms, dynamic property of the velocity autocorrelation, and the vibrational density of states. Starting from a cubic system at room temperature (300 K) containing 64 germanium atoms with an ordered arrangement of 1.132 nm in each dimension, the femtosecond laser processing is simulated by imposing the Nose Hoover thermostat to the electron subsystem lasting for ∼100 fs and continuing with microcanonical ensemble simulation of ∼200 fs. The simulation results show solid, liquid and gas phases of germanium under adjusted intensities of the femtosecond laser irradiation. We find the irradiated germanium distinguishes from the usual germanium crystal by analyzing their melting and dynamic properties.


1999 ◽  
Vol 250-252 ◽  
pp. 163-167 ◽  
Author(s):  
S. Gómez ◽  
L.E. González ◽  
D.J. González ◽  
M.J. Stott ◽  
S. Dalgiç ◽  
...  

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