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Two-dimension Particle-in-cell simulations for laser plasma interaction with laser intensity of $10^{16} W/cm^2$, plasma density range of 0.01-0.28$n_c$ and scale length of $230 -330 \mu m$ showed significant pump depletion of the laser…

等离子体物理 · 物理学 2020-03-25 J. Li , S. Zhang , C. M. Krauland , H. Wen , F. N. Beg , C. Ren , M. S. Wei

We study the influence of positrons on the outer crusts of neutron stars and the interiors of white dwarfs, introducing them as a novel component in both the composition of matter and in transport processes. We solve a system of coupled…

高能天体物理现象 · 物理学 2026-03-20 Tigran Petrosyan , Arus Harutyunyan , Armen Sedrakian

A promising approach to deform metallic-intermetallic composite materials is the application of electric current pulses during the deformation process to achieve a lower yield strength and enhanced elongation to fracture. This is known as…

材料科学 · 物理学 2019-06-03 D. Andre , T. Burlet , F. Koerkemeyer , G. Gerstein , S. Sandloebes-Haut , S. Korte-Kerzel

The magnetic spin dynamics and optical properties of EuZn$_2$P$_2$ are studied. Single crystals grown by the Sn-flux method crystallize in the $P\overline{3}m1$ (No.~164) space group and order antiferromagnetically at $T_N=23.5$~K.…

Nuclear inelastic scattering (NIS) spectra were recorded for the spin-crossover complexes STP and ETP (STP = [Fe(1,1,1-trisf[N-(2-pyridylmethyl)-N-methylamino]methylg- ethane)](ClO4)2 and ETP =…

Advances in light sources and time resolved spectroscopy have made it possible to excite specific atomic vibrations in solids and to observe the resulting changes in electronic properties but the mechanism by which phonon excitation causes…

超导电性 · 物理学 2017-05-05 Dante M. Kennes , Eli Y. Wilner , David R. Reichman , Andrew J. Millis

A change of the particle density (by gas puff, pellets or impurity seeding) during the plasma discharge in tokamak produces a radial current and implicitly a torque and rotation that can modify the state of confinement. After ionization the…

等离子体物理 · 物理学 2015-07-13 F. Spineanu , M. Vlad

We report the magnetic response of Co/Pt multilayers to picosecond electrical heating. Using photoconductive Auston switches, we generate electrical pulses with 5.5 picosecond duration and hundreds of pico-Joules to pass through Co/Pt…

介观与纳米尺度物理 · 物理学 2017-07-19 R. B. Wilson , Yang Yang , Jon Gorchon , Charles-Henri Lambert , Sayeef Salahuddin , Jeffrey Bokor

Thermoelectric effects have been applied to power generators and temperature sensors that convert waste heat into electricity. The effects, however, have been limited to electrons to occur, and inevitably disappear at low temperatures due…

Fast shocks that form in optically thick media are mediated by Compton scattering and, if relativistic, pair creation. Since the radiation force acts primarily on electrons and positrons, the question arises of how the force is mediated to…

高能天体物理现象 · 物理学 2021-01-04 Amir Levinson

Zinc phosphorus trisulfide (ZnPS$_3$), a promising material for photocatalysis and energy storage, is shown in this study to exhibit remarkable stability under extreme conditions. We explore its optical and structural properties under high…

Spin polarization provides a novel probe of the rotational properties of the quark-gluon plasma formed in relativistic heavy-ion collisions. This work investigates the equation of state, particularly its transport and thermodynamic…

核理论 · 物理学 2026-02-12 De-Xian Wei

Superconductivity and the normal state electrical resistivity which varies as $T^2$ are strongly enhanced near the compressibility and charge density wave instabilities in the electron-positive fermion gas. The additional screening from the…

超导电性 · 物理学 2024-11-26 Carl A. Kukkonen

The backscattering process of injected electrons on exchange-splitted levels of quantum well (QW) in ferromagnetic metal / insulator / semiconductor heterostructure is studied. It is found that, if one of the exchange-splitted levels lies…

介观与纳米尺度物理 · 物理学 2014-06-20 Leonid Lutsev

The problem of the backreaction during the process of electron-positron pair production by a circularly polarized electromagnetic wave propagating in a plasma is investigated. A model based on the relativistic Boltzmann-Vlasov equation with…

高能物理 - 唯象学 · 物理学 2016-09-06 S. S. Bulanov , A. M. Fedotov , F. Pegoraro

In dynamic nuclear polarization (DNP) experiments, the compound is driven out-of-equilibrium by microwave (MW) irradiation of the radical electron spins. Their stationary state has been recently probed via electron double resonance (ELDOR)…

强关联电子 · 物理学 2017-02-28 Filippo Caracciolo , Marta Filibian , Pietro Carretta , Alberto Rosso , Andrea De Luca

In this work, we examine sheath formation in the presence of bias potentials in the current saturation regime for pulsed power fusion experiments. It is important to understand how the particle and heat fluxes at the wall may impact the…

等离子体物理 · 物理学 2023-02-08 Chirag R. Skolar , Kolter Bradshaw , James Juno , Bhuvana Srinivasan

3D kinetic-scale turbulence is studied numerically in the regime where electrons are strongly magnetized (the ratio of plasma species pressure to magnetic pressure is $\beta_e=0.1$ for electrons and $\beta_i=1$ for ions). Such a regime is…

等离子体物理 · 物理学 2023-07-05 Cristian Vega , Vadim Roytershteyn , Gian Luca Delzanno , Stanislav Boldyrev

We study the motion (translational, vibrational, and rotational) of a diatomic impurity immersed in an electron liquid and exposed to electronic current. An approach based on the linear response time-dependent density functional theory…

材料科学 · 物理学 2024-07-12 Vladimir U. Nazarov , Tchavdar N. Todorov , E. K. U. Gross

Relativistic electrons accelerated by both the first-order and the second-order Fermi accelerations in some synchrotron sources have a hybrid shape of thermal and nonthermal energy distribution. This particle acceleration result is…

高能天体物理现象 · 物理学 2018-03-14 Jirong Mao , Jiancheng Wang