2019
DOI: 10.1016/j.jpcs.2019.109108
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Equation of state and properties of Nb at high temperature and pressure

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Cited by 11 publications
(6 citation statements)
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“…Another theoretical value for this slope, 37.7 K/ GPa 39,40 , is only slightly higher. Note that the initial dT m /dP from classical MD simulations is~50 K/GPa using the embeddedatom method 41 , or~54 K/GPa using the Mie-Lennard-Jones pairwise interatomic potential 42 . According to our cold free energy (i.e., enthalpy) calculations, the structures that are closest to bcc energetically are A15 (β-W) and three orthorhombic structures described with space groups Pnma (no.…”
Section: Resultsmentioning
confidence: 99%
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“…Another theoretical value for this slope, 37.7 K/ GPa 39,40 , is only slightly higher. Note that the initial dT m /dP from classical MD simulations is~50 K/GPa using the embeddedatom method 41 , or~54 K/GPa using the Mie-Lennard-Jones pairwise interatomic potential 42 . According to our cold free energy (i.e., enthalpy) calculations, the structures that are closest to bcc energetically are A15 (β-W) and three orthorhombic structures described with space groups Pnma (no.…”
Section: Resultsmentioning
confidence: 99%
“…Also shown is the melting curve of ref. 42 obtained from classical molecular dynamics (CMD, green dashed line). The error bars of the quantum molecular dynamics (QMD) points are smaller than the size of the symbol.…”
Section: Resultsmentioning
confidence: 99%
“…Для численного или аналитического расчета термодинамических свойств кристалла простого (однокомпонентного) вещества необходимо определить потенциал взаимодействия пары его атомов. Для аналитического расчета часто парное межатомное взаимодействие в кристалле простого вещества представляется в виде 4-х параметрического потенциала Ми−Леннард−Джонса, который имеет следующий вид [1][2][3][4][5][6][7]:…”
Section: Introductionunclassified
“…Поэтому в работах [4,6] оптимизация потенциала (1) проводилась уже по трем параметрам: D, b и a, при фиксированном значении r o . В этом методе стремились получить наилучшее согласие с экспериментальными данными для α p (P = 0, T = 300 K), B(P = 0, T = 300 K) и с экспериментальной зависимостью P(300 K, v/v o ).…”
Section: Introductionunclassified
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