TY - JOUR
T1 - Ruthenium under ultrafast laser excitation
T2 - Model and dataset for equation of state, conductivity, and electron-ion coupling
AU - Petrov, Yu
AU - Migdal, K.
AU - Inogamov, N.
AU - Khokhlov, V.
AU - Ilnitsky, D.
AU - Milov, I.
AU - Medvedev, N.
AU - Lipp, V.
AU - Zhakhovsky, V.
PY - 2020/2
Y1 - 2020/2
N2 - Interaction of ultrashort laser pulses with materials can bring the latter to highly non-equilibrium states, where the electronic temperature strongly differs from the ionic one. The properties of such excited material can be considerably different from those in a hot, but equilibrium state. The reliable modeling of laser-irradiated target requires careful analysis of its properties in both regimes. This paper reports a procedure which provides the equations of state of ruthenium using density functional theory calculations. The obtained data are fitted with analytical functions. The constructed equations of state are applicable in the one- and two-temperature regimes and in a wide range of densities, temperatures and pressures. The electron thermal conductivity and electron-phonon coupling factor are also calculated. The obtained analytical expressions can be used in two-temperature hydrodynamics modeling of Ru targets pumped by ultrashort laser pulses. The data is related to the research article “Similarity in ruthenium damage induced by photons with different energies: From visible light to hard X-rays” [1].
AB - Interaction of ultrashort laser pulses with materials can bring the latter to highly non-equilibrium states, where the electronic temperature strongly differs from the ionic one. The properties of such excited material can be considerably different from those in a hot, but equilibrium state. The reliable modeling of laser-irradiated target requires careful analysis of its properties in both regimes. This paper reports a procedure which provides the equations of state of ruthenium using density functional theory calculations. The obtained data are fitted with analytical functions. The constructed equations of state are applicable in the one- and two-temperature regimes and in a wide range of densities, temperatures and pressures. The electron thermal conductivity and electron-phonon coupling factor are also calculated. The obtained analytical expressions can be used in two-temperature hydrodynamics modeling of Ru targets pumped by ultrashort laser pulses. The data is related to the research article “Similarity in ruthenium damage induced by photons with different energies: From visible light to hard X-rays” [1].
KW - Electron-phonon heat transfer
KW - Equation of state
KW - High electron temperature
KW - Transition metal
KW - Transport coefficients
KW - Two-temperature model
UR - http://www.scopus.com/inward/record.url?scp=85077004498&partnerID=8YFLogxK
U2 - 10.1016/j.dib.2019.104980
DO - 10.1016/j.dib.2019.104980
M3 - Article
AN - SCOPUS:85077004498
VL - 28
JO - Data in brief
JF - Data in brief
SN - 2352-3409
M1 - 104980
ER -