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201
Effects of CdS Buffer Layers on Photoluminescence Properties of Cu2ZnSnS4 Solar Cells
Published 2015-01-01“…Broad bands at 1.075 eV and 0.85 eV were detected for the first time under below bandgap excitation of the as-grown CZTS samples at low temperature, which were explained in terms of radiative transitions involving point defect-related levels determined in the literature by first-principles calculations. The emissions observed in the as-grown samples were monitored by both above and below bandgap excitations also in standard CZTS solar cells produced on the same layers. …”
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202
Nonlinear memristive computational spectrometer
Published 2025-01-01“…The critical role of Pd ion migration is thoroughly supported by first-principles calculations, numerical simulations, and experimental verification, demonstrating its effectiveness in enhancing device performance. …”
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203
Efficient anomalous valley Hall effect switching in antiferrovalley MnSe driven by magnetoelectric coupling
Published 2025-01-01“…In this study, we demonstrate, through first-principles calculations and model analysis, that the experimentally synthesized MnSe monolayer is a hitherto unexplored but exceptional antiferrovalley material with spontaneous valley polarization. …”
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204
Orbital-order as the driving mechanism for superconductivity in ruthenates
Published 2025-02-01“…Here, with parameter-free first-principles calculations, we reveal that superconductivity in A2RuO4 (A = Sr, Ca) emerges due to an electron-phonon mechanism associated with the proximity of an orbital and bond-ordered phase. …”
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205
Intervalence plasmons in boron-doped diamond
Published 2025-01-01“…The measured spectra are subsequently reproduced by first-principles calculations based on the contribution of intervalence band transitions to the dielectric function. …”
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206
Data analysis-based framework for the design and assessment of chemical process plants: a case study in amine gas-treating systems
Published 2025-01-01“…This work presents a process-integrity assessment framework to chemical process design that combines first principles, heuristics, vendor specifications, standards/codes, data analysis, and machine learning modelling, hypothesized as an efficient route for optimal process design. …”
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207
Linear Bending Wave Propagation in Laminar and Turbulent Disks
Published 2025-01-01“…We clearly elucidate the theory from first principles, wherein the general Fourier–Hermite formalism can be simplified to a reduced framework which extends previous results toward locally isothermal disks. …”
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208
Rotation symmetry mismatch and interlayer hybridization in MoS2-black phosphorus van der Waals heterostructures
Published 2025-01-01“…Unfolded band structures obtained from first principles simulations precisely describe these multiple effects – all independent of the twist angle – and demonstrates that they arise from strong band hybridization between Mo $${d}_{{z}^{2}}$$ d z 2 and P $${p}_{x}$$ p x orbitals. …”
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209
Newest Measurements of Hubble Constant from DESI 2024 Baryon Acoustic Oscillation Observations
Published 2025-01-01“…Baryon acoustic oscillation (BAO) observations released by the DESI survey, allow us to determine H _0 from the first principles. Our method is purely data-driven and relies on unanchored luminosity distances reconstructed from Type Ia supernovae (SN Ia) data and H ( z ) reconstruction from cosmic chronometers. …”
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210
Layer-by-layer phase transformation in Ti3O5 revealed by machine-learning molecular dynamics simulations
Published 2024-04-01“…This is enabled by developing an efficient machine learning potential with near first-principles accuracy through an on-the-fly active learning method and an advanced sampling technique. …”
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211
Enhancing thermoelectric properties of ScN films through twin domains
Published 2025-01-01“…The results of our experiments are confronted with those following from the first-principles studies. We find that the ScN/MgO(001) layers with twin-domain structure reveal enhanced thermoelectric properties at elevated temperature as compared to those measured for almost defect- and domain-free layers, namely, enlarged Seebeck coefficient by about 30% and over two and a half times increased figure of merit at 800 K. …”
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212
Optical detection of bond-dependent and frustrated spin in the two-dimensional cobalt-based honeycomb antiferromagnet Cu3Co2SbO6
Published 2025-02-01“…Here, we propose Cu3Co2SbO6 heterostructures as an intriguing candidate, wherein bond-dependent and frustrated spins interact with optical excitons. First-principles spin Hamiltonian calculations and in-plane anisotropic critical fields suggest strong frustration and dominant Kitaev exchange interactions. …”
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213
Atomic-scale understanding of oxide growth and dissolution kinetics of Ni-Cr alloys
Published 2025-01-01“…To this end, we combine experiments with a first-principles-derived, multiscale computational framework that transcends thermodynamic descriptions to explicitly simulate the kinetic evolution of surface oxides of Ni-Cr alloys as a function of composition, temperature, pH, and applied voltage. …”
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214
Unlikelihood of a phonon mechanism for the high-temperature superconductivity in La3Ni2O7
Published 2025-01-01“…Here, we present a comprehensive first-principles study of the electron-phonon (e-ph) coupling in La3Ni2O7 and its implications on the observed superconductivity. …”
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215
Lattice defect engineering advances n-type PbSe thermoelectrics
Published 2025-01-01“…Detailed micro/nanostructural characterizations and first-principles calculations demonstrate that Cu-induced interstitial defects and nanoprecipitates simultaneously optimize electron and phonon transport properties. …”
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216
Challenging the ideal strength limit in single-crystalline gold nanoflakes through phase engineering
Published 2025-01-01“…The maximum strength is reached in HCP nanoflakes thinner than 10 nm. First-principles and molecular dynamics (MD) calculations demonstrate that the mechanical properties arise from the unconventional HCP structure as well as the strong surface effect. …”
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217
Orientation-selective spin-polarized edge states in monolayer NiI2
Published 2024-12-01“…Spin-polarized scanning tunneling microscopy/spectroscopy experiments visualize orientation-selective spin-polarized edge states in monolayer NiI2 islands. By performing first-principles calculations, we further confirm that spin-polarized edge states are selectively aligning along the Ni-terminated edges rather than the I-terminated edges. …”
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218
Mechanisms of Visible Light Photocatalysis in N-Doped Anatase TiO2 with Oxygen Vacancies from GGA+U Calculations
Published 2013-01-01“…We have systematically studied the photocatalytic mechanisms of nitrogen doping in anatase TiO2 using first-principles calculations based on density functional theory, employing Hubbard U (8.47 eV) on-site correction. …”
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219
Picturing Global Substorm Dynamics in the Magnetotail Using Low‐Altitude ELFIN Measurements and Data Mining‐Based Magnetic Field Reconstructions
Published 2024-10-01“…It is shown that in the growth phase, the mismatch between SST19 and ELFIN latitudes is much less than one degree, the capability unattainable for any other empirical or first‐principles model.…”
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220
TOMO AKVINIEČIO ŽMOGAUS LAISVĖS TEORIJOS TYRIMAI XX AMŽIUJE (I STRAIPSNIS)
Published 2000-01-01“…The studies of this type put in question traditional Neothomist view maintaining that Aquinas' ethics is theory of natural law which it the basis of the free human actions, so that man's practical decision is deducible from the first principles of natural law. The second line of investigation, introduced in this article, discusses Aquinas' general theory of freedom and free human activity. …”
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