Device design
The BRL is an AlGaAs heterostructure whose fabrication details are discussed in Sec. IV D, and a general overview of the structure is depicted in Fig. 1. BRLs are designed to lase in the Bragg mode60,61, where the 1D Bragg stack is…
Category: 4. Physics
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Protecting gauge symmetries in the dynamics of SU(3) lattice gauge theories
A suitable framework to study dynamics: LSH framework
As mentioned in the Introduction, we focus on a particular framework, namely the LSH framework developed for SU(2)4 and SU(3)108,109 gauge theories in 1 + 1 dimensions. The SU(2) framework has…
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Temperature and AC electrical properties natural mixture, Abu Tartur plateau, Western Desert, Egypt
Abdeen, F. M. & El-Naggar, H. A. Electrical properties of natural phosphate minerals. Solid State Ion. 302, 147–155 (2017).
Kandil, A. T. et al. Column leaching of lanthanides from Abu Tartur…
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Local structural distortions drive magnetic molecular field in compositionally complex spinel oxide
Synthesis and global structural symmetry
The synthesis of polycrystalline samples of five parent compounds ACr2O4 (A = Mn, Co, Ni, Cu and Zn) and A5Cr2O4 was carried out using a conventional solid-state synthesis route (details are provided in the…
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Non-equilibrium anti-Stokes Raman spectroscopy for investigating Higgs modes in superconductors
Raman instrument
Spontaneous Raman measurements were performed on the UT-3 Raman spectrometer (see Fig. S1)46. This triple-grated spectrometer is fully achromatic due to the use of reflective optics. Excellent stray light rejection is achieved…
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Modification mechanism of silver nanoparticles-functionalized MW-CNT and GGBFS and CQDs on the structural properties of geopolymer reinforced-composite beam
Flow with Abrams
The relative flow and types of fresh geopolymer containing fine aggregates, coarse aggregates, Ag-PM-WCNTs, GGBFS, CQD, and PCEP-BSP, as well as the reference composite, are shown in Fig. 3. Notably, the formwork, which is…
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Ion acceleration from micrometric targets immersed in an intense laser field
Experiments
The irradiation geometry (see Methods) is illustrated in Fig. 1a. We irradiated d = 0.2 μm thick, w = 2–10 μm wide μ-bars using 27-fs long p-polarized laser pulses with 120 mJ of energy. These pulses were focused to a 3.5 μm…
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Misfit layered superconductor (PbSe)1.14(NbSe2)3 with possible layer-selective FFLO state
Figure 1a shows a crystal structure of (PbSe)1.14(NbSe2)3 with the 2Ha stacking of NbSe2 tri-layer, where one Nb atom locates directly on another Nb atom. Each tri-layer NbSe2 stacks mostly in the same direction, which is also experimentally…
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Low-density plasma as a key catalyst for electron acceleration in the Van Allen radiation belts
Van Allen, J. A., Ludwig, G. H., Ray, E. C. & McIlwain, C. E. Observation of high intensity radiation by satellites 1958 alpha and gamma. Jet. Propuls. 28, 588–592 (1958).
Kellogg, P. J. Van…
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Taming Heat in Quantum Tech
• Physics 18, s97
A thermal version of a transistor could help control heat flow in cryogenic quantum systems.
Many quantum technologies function only at ultralow temperatures. Managing the flow of heat in these systems…
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