Electrical resistivity and equation of state measurements on hot expanded aluminum in the metal-nonmetal transition range

Korobenko, V. N.; Rakhel, A. D.

doi:10.1103/physrevb.75.064208

Cited by 53 publications

(41 citation statements)

References 24 publications

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“…QMD simulations are still irreplaceable to obtain dynamical ionic properties such as diffusion and viscosity, and to deal with complex mixtures without any assumptions (mixtures rules). Future prospects will include experiments in dynamically confined structure, inspired by Korobenko's experiments [5] to extend the domain of accessible pressures.…”

Section: Resultsmentioning

confidence: 99%

Pressure and Electrical Resistivity Measurements on Hot Expanded Metals: Comparisons with Quantum Molecular Dynamics Simulations and Average‐Atom Approaches

Clérouin

Starrett

Noiret

et al. 2012

Contrib. Plasma Phys.

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We present experimental results on pressures and resistivities of expanded nickel and titanium at respective densities of 0.1 g/cm 3 and 0.2 g/cm 3 , and in a range of temperature of 1-3 eV that corresponds to the warm dense matter (WDM) regime. These data are used to benchmark different theoretical approaches. A comparison is presented between fully 3-dimensional quantum molecular dynamics (QMD) methods, based on density functional theory, with average-atom (AA) methods, that are essentially one dimensional. AA methods are used to identify interband transitions and photoionization thresholds. In this regime the evaluation of the thermodynamic properties as well as electrical properties is difficult due to the concurrence of density and thermal effects which directly drive the metal-non-metal transition. QMD simulations are also helpful to give a precise estimation of the temperature of experiments which is not directly accessible [1].

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Section: Resultsmentioning

confidence: 99%

Pressure and Electrical Resistivity Measurements on Hot Expanded Metals: Comparisons with Quantum Molecular Dynamics Simulations and Average‐Atom Approaches

Clérouin

Starrett

Noiret

et al. 2012

Contrib. Plasma Phys.

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“…At higher V/V 0 one can see non metal behavior of the resistivity (it diminishes with rising of the temperature) [10]. The next progress in that theme with measuring pulse pressure on the shift of ruby line in the spectrum (up to 100 kbar) was published in [11]. …”

Section: Data On the Liquid Metals Propertiesmentioning

confidence: 99%

Liquid metals and liquid carbon: some similar properties at high temperatures

Фортов

Korobenko

Savvatimskiy

2011

EPJ Web of Conferences

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Abstract.Liquid carbon resistivity ρ (just after the melting) diminishes with rising of input energy and pressure P (for P -lower than 50 kbar). Far above melting point, at high pressure (higher ∼ 50 kbar) liquid carbon resistivity rises sharply, up to 3000 µΩ⋅cm. It was shown that the liquid carbon (as some other metals, for example W, Li) has one and the same property: a denser phase (in liquid state) has higher resistivity.

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“…Nanosized systems have much interest in new characteristics arising from their discrete energy level such as conductivity 1–4, magnetization 5–7, superconductivity 8–10, chemical reactivity 11–13, and so on 14–19. Their properties have been investigated experimentally and theoretically from viewpoints of new chemical and physical phenomena such as catalysis 20–24, new device 25–28, and so on 29–32.…”

Section: Introductionmentioning

confidence: 99%

“…energy level such as conductivity [1][2][3][4], magnetization [5][6][7], superconductivity [8][9][10], chemical reactivity [11][12][13], and so on [14][15][16][17][18][19]. Their properties have been investigated experimentally and theoretically from viewpoints of new chemical and physical phenomena such as catalysis [20][21][22][23][24], new device [25][26][27][28], and so on [29][30][31][32].…”

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confidence: 99%

Theoretical studies on ionization potential of aluminum clusters

Phung

Hashimoto

Nishikawa

et al. 2009

Int J of Quantum Chemistry

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The ionization potentials (IPs) of aluminum clusters (Al N ) are investigated using density functional calculations based on the plane-wave basis set and the projector-augmented wave method. We discuss the size dependence of the IP in relation to the electron affinity, the chemical hardness of both the small-sized and large cuboctahedral Al N containing up to 923 atoms and compare the computational results with other models of Wood and Perdew based on the jellium model. We show that the IP and electron affinity of large clusters in this size region can be extrapolated to the value of the work function for the bulk aluminum. Expressions of the higher-order IP of metallic clusters are derived by the extension of the Perdew model. We discuss the IP of a collective system of metallic clusters as a simple model of clusters on a thin film in the framework of the Perdew model. The critical size of superconductivity of aluminium cluster is discussed by using the present results of the average energy-level spacing.

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Electrical resistivity and equation of state measurements on hot expanded aluminum in the metal-nonmetal transition range

Cited by 53 publications

References 24 publications

Pressure and Electrical Resistivity Measurements on Hot Expanded Metals: Comparisons with Quantum Molecular Dynamics Simulations and Average‐Atom Approaches

Pressure and Electrical Resistivity Measurements on Hot Expanded Metals: Comparisons with Quantum Molecular Dynamics Simulations and Average‐Atom Approaches

Liquid metals and liquid carbon: some similar properties at high temperatures

Theoretical studies on ionization potential of aluminum clusters

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