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Compton scattering of low-frequency radiation by an isotropic distribution of (i) mildly and (ii) ultra relativistic electrons is considered. It is shown that the ensemble-averaged differential cross-section in this case is noticeably…

Astrophysics · Physics 2011-05-23 Sergei Y. Sazonov , Rashid A. Sunyaev

The experimental data on the $^{16}$O$+^{12}$C and $^{18}$O$+^{12}$C elastic scatterings and their optical model analysis are presented. Detailed and complete elastic angular distributions have been measured at the Strasbourg Vivitron…

Nuclear Experiment · Physics 2009-11-07 S. Szilner , M. P. Nicoli , Z. Basrak , R. M. Freeman , F. Haas , A. Morsad , M. E. Brandan , G. R. Satchler

The inelastic nature of 3-phonon processes is investigated within the framework of perturbation theory and linearized Boltzmann Transport Equation. By considering the energy conservation rule governing this type of interactions in a…

Materials Science · Physics 2017-09-07 Ahmed Hamed , Anter El-Azab

Engaging with physical and material properties through empirical observation is a fundamental part of undergraduate physics and engineering education. Several works have proposed experiments to determine thermal physical constants of…

Physics Education · Physics 2022-11-22 Robert D. Polak , Michael R. Harris , Kiet A. Nguyen , Anthony Kearns

We investigate the recoil heating phenomenon experienced by a dielectric spherical particle when it interacts with a linearly polarized plane wave within the Rayleigh regime. We derive the fluctuating force acted upon the particle arising…

Optics · Physics 2024-05-16 Mohammad Ali Abbassi

In this work, we have estimated self diffusion coefficients along with the binary diffusion coefficients of mixtures of alkane (methane, ethane, propane and n-butane) in SPC/E water(H$_2$O). Molecular dynamics study of a binary mixture of…

The temperature effect on the Raman scattering efficiency is investigated in $\varepsilon$-GaSe and $\gamma$-InSe crystals. We found that varying the temperature over a broad range from 5 K to 350 K permits to achieve both the resonant…

Heavy quark production provides a unique probe of the quark-gluon plasma transport properties in heavy ion collisions. Experimental observables like the nuclear modification factor $R_{\rm AA}$ and elliptic anisotropy $v_{2}$ of heavy…

High Energy Physics - Phenomenology · Physics 2020-07-28 Shuang Li , Jinfeng Liao

Understanding heat transport in organic semiconductors is of fundamental and practical relevance. Therefore, we study the lattice thermal conductivities of a series of (oligo)acenes, where an increasing number of rings per molecule leads to…

Materials Science · Physics 2024-12-09 Lukas Legenstein , Lukas Reicht , Sandro Wieser , Michele Simoncelli , Egbert Zojer

Inelastic x-ray scattering and Brillouin light scattering measurements of the dynamic structure factor of liquid hydrogen fluoride have been performed in the temperature range$ T=214\div 283 K$. The data, analysed using a viscoelastic model…

Disordered Systems and Neural Networks · Physics 2016-08-31 R. Angelini , P. Giura , D. Fioretto , G. Monaco , G. Ruocco , F. Sette

The anomalous Hall effect in a multiband tight-binding model is numerically studied taking into account both elastic scattering by disorder and inelastic scattering by the electron-phonon interaction. The Hall conductivity is obtained as a…

Strongly Correlated Electrons · Physics 2012-07-19 Atsuo Shitade , Naoto Nagaosa

We present the results of a large scale computer simulation of supercooled silica. We find that at high temperatures the diffusion constants show a non-Arrhenius temperature dependence whereas at low temperature this dependence is also…

Disordered Systems and Neural Networks · Physics 2015-06-25 Jurgen Horbach , Walter Kob , Kurt Binder

An ion held in a radiofrequency trap interacting with a uniform buffer gas of neutral atoms develops a steady-state energy distribution characterised by a power-law tail at high energies instead of the exponential decay characteristic of…

Atomic Physics · Physics 2018-05-09 I. Rouse , S. Willitsch

Antiferromagnetic resonance in a bulk $\alpha$-MnTe crystal is investigated using both frequency-domain and time-domain THz spectroscopy techniques. At low temperatures, an excitation at the photon energy of $(3.5\pm 0.1)$~meV is observed…

We present the results of a study of the diffusion of Rb atoms in paraffin - coated resonant vapor cells. We have modeled the Rb diffusion both in the cell and in the coating, assuming that the main loss of Rb atoms is due to the physical…

Atomic Physics · Physics 2017-02-01 S. N. Atutov , F. A. Benimetskiy , A. I. Plekhanov , V. A. Sorokin , A. V. Yakovlev

Photoinduced effects in a single crystal of bilayered manganites, La2-2xSr1+2xMn2O7 (x=0.38), were investigated in a wide range of temperatures by pump-probe measurement at a photon energy of 1.6eV. In a ferromagnetic metallic state,…

Strongly Correlated Electrons · Physics 2009-11-10 Y. Hirobe , Y. Kubo , K. Kouyama , H. Kunugita , K. Ema , H. Kuwahara

The early stage of the reactive interdiffusion in the Cu-Al system was investigated at 350 {\textdegree}C and 300 {\textdegree}C thanks to in-situ transmission electron microscopy. A special care was given to find conditions where the…

Materials Science · Physics 2020-05-08 F. Moisy , X. Sauvage , E. Hug

Recent theory has predicted large temperature differences between the in-plane (LA and TA) and out-of-plane (ZA) acoustic phonon baths in locally-heated suspended graphene. To verify these predictions, and their implications for…

Mesoscale and Nanoscale Physics · Physics 2020-03-18 Robin J. Dolleman , Gerard J. Verbiest , Yaroslav M. Blanter , Herre S. J. van der Zant , Peter G. Steeneken

Largely motivated by a number of applications, the van der Waals dispersion coefficients ($C_3$s) of the alkali ions (Li$^+$, Na$^+$, K$^+$ and Rb$^+$), the alkaline-earth ions (Ca$^+$, Sr$^+$, Ba$^+$ and Ra$^+$) and the inert gas atoms…

Atomic Physics · Physics 2015-09-16 Kiranpreet Kaur , Bindiya Arora , B. K. Sahoo

We report the dispersion coefficients for the interacting inert gas atoms with the alkali ions, alkaline earth ions and alkali atoms with their singly charged ions. We use our relativistic coupled-cluster method to determine dynamic dipole…

Atomic Physics · Physics 2016-05-18 Sukhjit Singh , Kiranpreet Kaur , B. K. Sahoo , Bindiya Arora