5 papers
Alchemical thermodynamic integration for ab initio free-energy calculations in solutions
Liangrui Wei, Feng Zhang, Renata M. Wentzcovitch +2
We develop an alchemical thermodynamic integration scheme that couples ab initio force calculators on the fly during Monte Carlo and molecular dynamics simulations. The implementat…
Ab initio superionic-liquid phase diagram of Fe1-xOx under Earth's inner core conditions
Zepeng Wu, Chen Gao, Feng Zhang +4
The superionic state is a phase of matter in which liquid-like ionic mobility coexists with a solid crystalline lattice. Recently identified in Earth's inner core (IC), this state…
Ab initio calculation of atomic solid hydrogen phases based on Gutzwiller many-body wave functions
Zhuo Ye, Jun Liu, Yong-Xin Yao +3
We apply two ab initio many-body methods based on Gutzwiller wave functions, i.e., correlation matrix renormalization theory (CMRT) and Gutzwiller conjugate gradient minimization (…
The Fe-Ni phase diagram and the Earth's inner core structure
Liangrui Wei, Kai-Ming Ho, Renata M. Wentzcovitch +1
The Fe-Ni alloy is believed to be the main component of Earth's core. Yet, a comprehensive understanding of phase equilibria near the melting point of this alloy under core conditi…
Understanding the two-step nucleation of iron at Earth's inner core conditions: a comparative molecular dynamics study
Chen Gao, Kai-Ming Ho, Renata M. Wentzcovitch +1
Metastable phases can lead to multistep nucleation processes, influencing the liquid-to-solid transition in various systems. In this study, we investigate the homogeneous nucleatio…