Results 1 to 10 of about 263,292 (331)

Low-dimensional non-metal catalysts: principles for regulating p-orbital-dominated reactivity

open access: yesnpj Computational Materials, 2021
Activation of p-block elements to replace the rare and precious transition metals for renewable energy applications is highly desirable. In this review, we go over recent experimental and theoretical progress on the low-dimensional non-metal materials ...
Si Zhou   +5 more
doaj   +1 more source

Layer-dependent magnetic phase diagram in Fe n GeTe2 (3 ≤ n ≤ 7) ultrathin films

open access: yesCommunications Physics, 2022
2D magnetism offers the prospect of ordered and controllable magnetic states at reduced dimensions and there is a desire to obtain materials which can realise these properties at room temperature.
Qinxi Liu   +6 more
doaj   +1 more source

Cluster-assembled superatomic crystals for chirality-dependent charge-to-spin conversion

open access: yesnpj Quantum Materials, 2023
In chiral materials, spins and chirality are coupled via spin-orbit interaction, provoking a fast-growing field of chiral spintronics. Compared with the widely explored chiral molecules, exploration of chirality-dependent spin effects in crystals and ...
Yanyan Zhao, Jijun Zhao, Yu Guo, Si Zhou
doaj   +1 more source

In Situ Detection of Trace Heavy Metal Cu in Water by Atomic Emission Spectrometry of Nebulized Discharge Plasma at Atmospheric Pressure

open access: yesApplied Sciences, 2022
The in situ detection of trace heavy metal is very important for human health and environmental protection. In this paper, a novel and stable nebulized discharge excited by an alternating current (AC) power supply at atmospheric pressure is employed to ...
Huixue Yang   +4 more
doaj   +1 more source

Laser Beam Shaping [PDF]

open access: yesOptical Engineering, 2003
Laser beam shaping, the art of controlling the irradiance and phase profile of a laser's output, is an enabling technology used in industrial applications including semiconductor lithography, circuit component trimming and laser printing.
Fred M. Dickey, David L. Shealy
openaire   +3 more sources

Nonlinear combining of laser beams [PDF]

open access: yesOptics Letters, 2014
We propose to combine multiple laser beams into a single diffraction-limited beam by the beam self-focusing (collapse) in the Kerr medium. The beams with the total power above critical are first combined in the near field and then propagated in the optical fiber/waveguide with the Kerr nonlinearity.
Natalia Vladimirova, Pavel M. Lushnikov
openaire   +6 more sources

Experimental and simulation studies on damage mechanisms of tungsten and molybdenum under compressed plasma flow irradiation

open access: yesNuclear Fusion, 2023
The failure mechanism of plasma-facing components (PFCs) under extreme plasma conditions relevant for fusion reactors were investigated. Here, edge-localized mode (ELM)-like transient thermal shock irradiation experiments were performed on tungsten and ...
Lisong Zhang   +6 more
doaj   +1 more source

Optics with an Atom Laser Beam [PDF]

open access: yesPhysical Review Letters, 2001
We report on the atom optical manipulation of an atom laser beam. Reflection, focusing and its storage in a resonator are demonstrated. Precise and versatile mechanical control over an atom laser beam propagating in an inhomogeneous magnetic field is achieved by optically inducing spin-flips between atomic ground states with different magnetic moment ...
Immanuel Bloch   +9 more
openaire   +4 more sources

Electron beam guiding by a laser Bessel beam [PDF]

open access: yesPhysical Review Accelerators and Beams, 2018
We investigate the dynamics of electrons counterpropagating along a radially polarized optical Bessel beam (OBB). (i) It is shown that a significant fraction of the electrons can be transversally trapped by the OBB even in the case of “unmatched” injection.
Levi Schächter, W. D. Kimura
openaire   +3 more sources

The influence of E× B drift on tungsten target erosion and W impurity transport during neon seeding on EAST

open access: yesNuclear Fusion, 2023
Mitigating tungsten (W) wall erosion and core accumulation are vitally important for the steady-state operation of tokamaks. It is well known that drifts have a great impact on the transport of charged particles in the edge region, which could affect W ...
Yilin Wang   +6 more
doaj   +1 more source

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