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Title: Germanium multiphase equation of state

Journal Article · · Journal of Physics. Conference Series (Online)
 [1];  [1];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
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A new SESAME multiphase germanium equation of state (EOS) has been developed using the best available experimental data and density functional theory (DFT) calculations. The equilibrium EOS includes the Ge I (diamond), the Ge II (β-Sn) and the liquid phases. The foundation of the EOS is based on density functional theory calculations which are used to determine the cold curve and the Debye temperature. Results are compared to Hugoniot data through the solid-solid and solid-liquid transitions. We propose some experiments to better understand the dynamics of this element

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC52-06NA25396
OSTI ID:
1238605
Report Number(s):
LA-UR-13-28007
Journal Information:
Journal of Physics. Conference Series (Online), Vol. 500, Issue 3; ISSN 1742-6596
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

References (16)

Undercooling of Liquid Germanium journal January 1985
Advanced flat top laser heating system for high pressure research at GSECARS: application to the melting behavior of germanium journal September 2008
Behavior of the Elements at High Pressures journal July 1974
Melting and Polymorphism at High Pressures in Some Group IV Elements and III-V Compounds with the Diamond/Zincblende Structure journal April 1963
Phase Diagrams of Silicon and Germanium to 200 kbar, 1000°C journal December 1964
β − tin → I m m a → sh Phase Transitions of Germanium journal March 2011
Test of a theoretical equation of state for elemental solids and liquids journal September 2003
Ab initiomolecular dynamics for liquid metals journal January 1993
Efficiency of ab-initio total energy calculations for metals and semiconductors using a plane-wave basis set journal July 1996
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set journal October 1996
High-pressure and high-temperature study of phase transitions in solid germanium journal November 2003
High-pressure ultrasonic setup using the Paris–Edinburgh press: Elastic properties of single crystalline germanium up to 6 GPa journal August 2003
Representative hybrid model used for analyses of heat capacities of group-IV, III-V, and II-VI materials journal September 2010
Basic moments of phonon density of states spectra and characteristic phonon temperatures of group IV, III–V, and II–VI materials journal May 2007
Thermophysical Properties of Molten Germanium Measured by a High-Temperature Electrostatic Levitator1 journal January 2000
Electronic structure, equation of state, and lattice dynamics of low-pressure Ge polymorphs journal August 2012

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Related Subjects

36 MATERIALS SCIENCE
Equation of State
Multiphase
Germanium