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APL Materials
Scopus
ISSN 2166-532X · AIP Publishing LLC · 2.957 artikel di indeks
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Advanced terahertz gas sensor based on multi-material metasurface integration with machine learning optimization
This paper presents a gas sensor based on an integrated metasurface design incorporating borophene, germanene, phosphorene, and graphene. The sensor leverages the unique properties of these two-dimensional materials arranged in a precisely engineered geometric configuration of circular and square…
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Multiscale structural analysis of defective graphene in transmission electron microscopy images using persistent homology
We developed a persistent-homology-based strategy that converts transmission electron microscopy images of defective graphene into quantitative, multiscale descriptors spanning local carbon-atom polygons and their global connectivity. Zero-dimensional persistence diagrams for grayscale images…
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Quantitative modeling of threshold instability in β-Ga2O3 finFETs through electro-optical investigation
This paper describes the physical origin of VTH instabilities in β-Ga2O3 finFETs, based on electro-optical measurements. In particular, (i) we investigated the VTH instability by means of pulsed ID–VGs, demonstrating the existence of an electron trapping process involving border states in the…
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Broad-range tuning of ferroelectric switching of LaxBi1−xFeO3 epitaxial films via digital doping using off-axis co-sputtering
To investigate the scope of ferroelectric behavior in La-substituted BiFeO3 films, LaxBi1−xFeO3 epitaxial films were synthesized using off-axis co-sputtering on SrTiO3(001) and DyScO3(110) substrates with a SrRuO3 bottom electrode layer. A digital-doping deposition method was used to enable precise…
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Field evaporation of germanium under THz pulses: application to atom probe tomography
This study investigates the field evaporation behavior of germanium (Ge) under monocycle terahertz (THz) excitation using atom probe tomography (APT). The influence of THz pulse polarity, specimen geometry, and spectral content is systematically examined. Dual-polarity experiments reveal the…
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Differences effect of dominant charge dynamics between fullerene and non-fullerene photocatalysts on the degradation for neonicotinoid insecticides
Neonicotinoid insecticides used for agricultural pest control pose severe threats to non-target organisms and ecosystems due to their high water solubility, environmental persistence, and bioaccumulation. To address the water pollution caused by such insecticides, this work effectively removed…
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On the remarkable coercivity in MnBi by microstructural engineering
MnBi materials with different microstructures were prepared by severe plastic deformation using different processing conditions. The coercivity can be controlled by tuning the grain size, defect density, and the phase distribution of the MnBi in the remaining matrix. A maximum room-temperature…
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Spin-wave emission with current-controlled frequency by a PMA-based spin-Hall oscillator
Spin-torque and spin-Hall oscillators (SHOs) have emerged as promising candidates for building blocks in neuromorphic computing due to their ability to synchronize mutually, a process that can be mediated by propagating spin waves. We demonstrate a SHO that takes advantage of a low-damping magnetic…
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Large spin-valve effect in a perovskite-oxide (La, Sr)MnO3-based lateral device incorporating a LaMnO3 buffer layer
A spin metal–oxide–semiconductor field-effect transistor (spin-MOSFET) is highly required for innovative, ultra-fast, nonvolatile memory, and logic devices in the next generation of technology. A key focus in developing spin-MOSFETs is achieving high magnetoresistance (MR) ratios. In Si-based…
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Magnetic materials for quantum magnonics
Quantum magnonics studies the quantum properties of magnons—the quanta of spin waves—and their application in quantum information processing. Progress in this field depends on identifying magnetic materials with characteristics tailored to the diverse requirements of magnonics and quantum…
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First demonstration of 8-in. N-polar GaN HEMT wafer via wafer bonding and layer transfer
We report the first demonstration of an 8-in. N-polar GaN HEMT wafer using a wafer bonding and layer transfer approach. By growing the device layers on low-resistivity Si and transferring them onto high-resistivity Si substrates, we successfully integrated high-quality N-polar GaN/AlGaN…
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Characterization of superconducting germanide and germanosilicide films of Pd, Pt, Rh, and Ir formed by solid-phase epitaxy
Facilitated by recent advances in strained Ge/SiGe quantum well growth technology, superconductor–semiconductor hybrid devices based on group IV materials have been developed, potentially augmenting the functionality of quantum circuits. The formation of highly transparent superconducting platinum…
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Preparation and evaluation of alexandrite, forsterite, and topaz substrates for the epitaxial growth of rutile oxides
Metal–insulator transitions and superconductivity in rutile-structured oxides hold promise for advanced electronic applications, yet their thin film synthesis is severely hindered by limited substrate options. Here, we present three single-crystalline substrates, BeAl2O4, Mg2SiO4, and…
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Spin-torque-driven magnetization dynamics of ferrimagnet Co100−xGdx alloy
Electrically induced spin-torque phenomena in rare-earth–transition-metal ferrimagnetic alloys have been extensively studied. However, the key question of which channel absorbs the spin angular momentum has been debated, which highlights the need for direct measurement of the magnetization…
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Picosecond low-threshold random lasing in polymer passivated CsPbBr3 thin films
All-inorganic CsPbX3 (X = Cl, Br, I) perovskites have demonstrated great potential for optoelectronic applications due to their excellent optical properties and environmental stability. Random lasing is a particularly promising direction because of its simple and cavity-free feedback mechanism…
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Size-dependent magnetic domain evolution in patterned FeRh films
Equiatomic B2-ordered FeRh alloy possesses unique metamagnetic phase transition above room temperature, which provides a promising route for emerging magnetic recording and spintronic applications when downsized into nanoscale. This paper presents a systematic investigation of magnetic domain in…
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Reconfigurable optical physical unclonable functions based on voltage-controlled magnetic anisotropy
Physical unclonable functions (PUFs) generate secure cryptographic keys by harnessing the intrinsic hardware randomness, offering enhanced robustness against adversarial attacks. Spintronic devices have been incorporated into PUFs by exploiting the stochastic distribution of magnetic properties…
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Atomic-scale study on dysprosium doping in BaTiO3: Bridging observation and theory
Dysprosium doping of barium titanate is potentially relevant to the reliability of multilayer ceramic capacitors. To investigate this potential, we first predict the site-specific dysprosium doping behavior using density functional theory. Employing high-angle annular dark-field scanning…
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Magnetically responsive multidimensional thermal display using liquid-metal-based flexible thermal switches
Traditional thermal switches regulate thermal conductivity only in a single global direction, which limits their application in infrared thermal display. This study presents a flexible thermal switch composed of magnetic liquid metal, polydimethylsiloxane, graphene films, and polyvinyl chloride…
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