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Atom-in-jellium calculations of the electron states, and perturbative calculations of the Einstein frequency, were used to construct equations of state (EOS) from around $10^{-5}$ to $10^7$g/cm$^3$ and $10^{-4}$ to $10^{6}$eV for elements…

We have measured the phase coherence time, $\tau_{\phi},$ in long, narrow wires of Au, Ag, and Cu, over the temperature range 40 mK-6 K. In the Cu and Au wires, $\tau_{\phi}$ saturates at low temperature. In the Ag wire, $\tau_{\phi}$…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. B. Gougam , F. Pierre , H. Pothier , D. Esteve , N. O. Birge

Predicting the ground state of alloy systems is challenging due to the large number of possible configurations. We identify an easily computed descriptor for the stability of binary surface alloys, the effective coordination number…

Materials Science · Physics 2017-02-17 Sananda Biswas , Shobhana Narasimhan

Based on the five-orbital model, we derive the reduced impurity scattering rate $g=z\gamma/2\pi T_{c0}$ in Sm(Fe$_{1-x}$Ru$_{x}$)AsO$_{0.85}$F$_{0.15}$ from the residual resistivity. At $x=0$, the transition temperature is $T_{c0}=50$ K.…

Strongly Correlated Electrons · Physics 2011-06-08 Hiroshi Kontani , Masatoshi Sato

Reaction cross sections of 169Tm(alpha,gamma)173Lu and 169Tm(alpha,n)172Lu have been measured in the energy range 12.6<=E_alpha<=17.5 MeV and 11.5<=E_alpha<=17.5 MeV, respectively, using the recently introduced method of combining…

The thermal fit to preliminary HADES data of Au+Au collisions at $\sqrt{s_{_{NN}}}=2.4$ GeV shows two degenerate solutions at $T\approx50$ MeV and $T\approx70$ MeV. The analysis of the same particle yields in a transport simulation of the…

High Energy Physics - Phenomenology · Physics 2021-10-06 Anton Motornenko , Jan Steinheimer , Volodymyr Vovchenko , Reinhard Stock , Horst Stoecker

Results of calculations for inelastic e+Mg effective collision strengths for the lowest 25 physical states of Mg I (up to 3s6p 1P), and thus 300 transitions, from the convergent close-coupling (CCC) and the B-spline R-matrix (BSR) methods…

Instrumentation and Methods for Astrophysics · Physics 2017-09-27 P. S. Barklem , Y. Osorio , D. V. Fursa , I. Bray , O. Zatsarinny , K. Bartschat , A. Jerkstrand

The Work function (f)is fundamental for chemistry and electronics. Additionally, f can be used to examine the validity of the theoretical surfaces by comparing it with experimental f, even in the absence of long-range orders. In the…

Materials Science · Physics 2025-07-10 Yukio Watanabe , S. Miyauchi , S. Kaku , T. Yamada , A. Horiguchi

We report detailed measurements of composition as well as temperature dependence of the phonon density-of-states in a new series of FeAs compounds with composition CaFe1\_{1-x}Co\_{x}AsF (x = 0, 0.06, 0.12). The composition as well as…

The equation of state (EOS) of alloys at high pressures is generalized with the cluster expansion method. It is shown that this provides a more accurate description. The low temperature EOSs of Ni-Al alloys on FCC and BCC lattices are…

Materials Science · Physics 2012-03-06 H. Y. Geng , N. X. Chen , M. H. F. Sluiter

First-principles calculations are used to gauge different levels of approximation to calculate the magnetocrystalline anisotropy energies (MAE) of five $L1_0$ FeMe alloys (Me=Co, Cu, Pd, Pt, Au). We find that a second-order perturbation…

Materials Science · Physics 2020-12-14 M. Blanco-Rey , J. I. Cerda , A. Arnau

We report a detailed study of dc magnetization and ac susceptibility performed on the zero field cooled (ZFC) and field cooled (FC) state of polycrystalline AuFe(11%) alloy. The temperature variation of ZFC and FC dc magnetization at low…

Materials Science · Physics 2023-03-01 Sudip Pal , S. B. Roy , A. K. Nigam

The cross sections of complete fusion and incomplete fusion for the $ ^{9} $Be + $ ^{197} $Au system, at energies not too much above the Coulomb barrier, were measured for the first time. The online activation followed by offline…

We present a comparative theoretical and experimental study of dynamic structure factors (momentum-dependent loss functions) of the noble metals Cu, Ag, and Au in the energy range of 0$-$60 eV. The emphasis is on theoretical results that…

Materials Science · Physics 2013-11-19 Audrius Alkauskas , Simon D. Schneider , Cécile Hébert , Stephan Sagmeister , Claudia Draxl

The RHIC beam energy scan program in its first phase collected data for Au+Au collisions at beam energies of 7.7, 11.5 and 39 GeV. The event statistics collected at these lower energies allow us to study the centrality dependence of various…

Nuclear Experiment · Physics 2015-06-03 Lokesh Kumar

We have studied the problem of phase stability in Fe-Pt and Co-Pt alloy systems. We have used the orbital peeling technique in the conjunction of augmented space recursion based on the tight binding linear orbital method as the method for…

Materials Science · Physics 2009-11-10 Durga Paudyal , Tanusri Saha-Dasgupta , Abhijit Mookerjee

Prompted by the recent report on the evidence for superconductivity at ambient temperature and pressure in nanostructures of silver particles embedded into a gold matrix [arXiv:1807.08572], we have exploited first principles materials…

Superconductivity · Physics 2018-12-24 Surender Singh , Subhamoy Char , Dasari L. V. K. Prasad

Excitation functions of flow and stopping observables for the Au+Au system at energies from 40 to 1500 MeV per nucleon are presented. The systematics were obtained by merging the results of the INDRA and FOPI experiments, both performed at…

Nuclear Experiment · Physics 2009-11-11 A. Andronic , J. Lukasik , W. Reisdorf , W. Trautmann

In this study methods of statistical thermodynamics were applied to white tin - grey tin equilibrium to find if there is any correlation between Debye temperature of an additive and its effect on the equilibrium. Gibbs free energy of the…

Statistical Mechanics · Physics 2010-11-11 Nikolay Dementev

In the present work, we make confrontation of our theoretical calculations using quantum molecular dynamics model with the experimental data for the reactions of $^{40}Ar$ +$^{45}$Sc, $^{197}Au$ +$^{197}$Au and $^{129}Xe$ +$^{119}$Sn at…

Nuclear Theory · Physics 2011-11-01 Tajinder Pal Singh , Sakshi Gautam