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In 2011, Yury Gogotsi's research group first synthesized titanium carbides (Ti 3 C 2 T x) by etching of Al elements from Ti 3 AlC 2 with hydrofluoric acid (HF) as the etchant. 22 There has been a significant increase in the number of research studies and publications on MXene since 2011. As one of the widely used etchants, a fluoride salt ...
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Recently, much progress has been made in polarization-sensitive photodetectors based on the newly-emerging metal-halide perovskites. However, compared to extensive work on visible/infrared-light photodetection, polarization-sensitive perovskite photodetectors targeted at the ultraviolet (UV) region have not Horizons Community Board Collection: …
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We report the achievement of highly efficient 10 B enriched hexagonal boron nitride (h-10 BN) direct conversion neutron detectors. These detectors were realized from freestanding 4-in. diameter h-10 BN wafers 43 μm in thickness obtained from epitaxy growth and subsequent mechanical separation from sapphire substrates. Both sides of the film …
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Recently, the amplified spontaneous emission (ASE) and lasing emissions (LEs) of 2D organic–inorganic perovskites have been intensively studied. 8–11 For example, Li et al. have reported the tunable ASE in hybrid (NMA) 2 (FA)Pb 2 Br y I 7−y thin films. 12 Using NMA-based 2D perovskite films as gain media, Leyden et al. reported distributed …
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To further look into this SOC proximity effect, we performed the RMCD measurements at an elevated temperature of 138 K. Due to the stronger thermal fluctuation at elevated temperatures, the H C of the bare FGT at 138 K decreased with respect to that at 124 K (i.e., 1850 Oe at 138 K versus 2640 Oe at 124 K), as shown by the red curve in …
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We report the epitaxial growth of Ruddlesden–Popper nickelates, La n+1 Ni n O 3n+1, with n up to 5 by reactive molecular beam epitaxy. X-ray diffractions indicate high crystalline quality of these films, and transport measurements show strong dependence on the n values. Angle-resolved photoemission spectroscopy reveals the electronic structure …
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Tools. Spintronics aims to utilize the spin degree of freedom for energy-efficient, non-volatile memory and logic devices. In this research update, we review state-of-the-art developments and new directions in charge- and spin-based memory/logic with a focus on spintronics and the fascinating potential for superconductivity to boost spin ...
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Spin–charge interconversion is of great interest for spintronics 1 —the emerging field of research which exploits the electron's spin degree of freedom apart from its charge for information processing, storage, and sensing, with potential to outperform semiconductor devices for some tasks and enable post-Moore's law technology. 2 The ...
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Materials Physics Electronic Properties . Snyder at al "Effective Mass from Seebeck Coefficient" Advanced Functional Materials 2112772 (2022) M. Y. Toriyama et al., "Tuning valley degeneracy with band inversion" Journal of Materials Chemistry A 10, 1588-1595 (2022) Shawn Gregory, Riley Hanus, et al "Quantifying charge carrier localization in …
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Several autoimmune diseases, including systemic lupus erythematosus and primary antiphospholipid syndrome, are characterized by the presence of antiphospholipid antibodies (aPLs). These molecules can activate the complement and coagulation cascades, which contributes to pathologies such as thrombosis, stroke, and pregnancy …
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iri cevher parçası bulunmalı, b) iri cevher parça-ları yuvarlak veya yuvarlağa yakın şekilli olmalı, c) İri parçalar orta sertlikte olmalı ve çabuk ufa-lanmamalıdır. Yukarıdaki nedenlerden ötürü otojen değir-menler önceleri yalnızca bazı demir cevherlerinin öğütülmesi için kullanılmaktaydı. Özellikle bakır
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Organic near-infrared (NIR) emitters hold great promise for biomedical applications. Yet, most organic NIR fluorophores face the limitations of short emission wavelengths, low brightness, unsatisfactory processability, and the aggregation-caused quenching effect. Therefore, development of effective molecular Celebrating 100 Years of Chemistry at …
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In addition, as shown in Fig. 7(b), the coercive field H c was ∼0.1 T, along both the easy and hard axes. This value is smaller than those previously reported for SrRuO 3 films (H c > 0.2 T). 7,8,47 Since the magnetic domains tend to be pinned by grain boundaries and other defects, the small H c stems from the higher crystallinity of our film. 7
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Two inch diameter, highly conducting (Si-doped) bulk β-Ga 2 O 3 single crystals with the cylinder length up to one inch were grown by the Czochralski method. The obtained crystals revealed high structural quality characterized by narrow x-ray rocking curves (FWHM ≤ 25 arc sec) and high surface smoothness (RMS < 200 pm) of the epi …
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After the initial therapeutic success reported in 1973 using an anthracycline (daunorubicin), 1 the management and outcome of acute promyelocytic leukemia (APL) has been revolutionized by the introduction of all-trans retinoic acid (ATRA; tretinoin) and arsenic xide (ATO) in 1988 2 and 1996, 3 respectively. Multicenter studies over the past 3 …
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An introduction to the APL Materials Special Issue on "Emerging Materials in Neuromorphic Computing," by the guest editors. Topics. Memristor devices, Algorithms and data structure, Artificial intelligence, Artificial neural networks, Nonvolatile memory, Plasticity, Topological insulator, Stochastic processes
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K K = or = 50 1 4, or MP K = 200 computer chips per hour. 7. Do the following production functions exhibit decreasing, constant or increasing returns to scale? a. Q = 0.5KL Returns to scale refers to the relationship between output and proportional increases in all inputs. This concept may be represented in the following manner, whereλ
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Figure 1(c) depicts the reciprocals of the critical switching current (1/I C) and SOT switching efficiency represented by the critical current density normalised by the anisotropy field (J C /B k) −1 as a function of t Ti. 47 This confirms that the SOT switching efficiency improves in the regime where t Ti lies between 0.8 and 1.5
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Electronically conductive metal–organic framework-based materials. Metal–organic frameworks (MOFs) have attracted great attention due to their attractive characteristics such as ultrahigh specific surface area, interconnected and regular porosity, and intraframework chemical functionality. However, utilizing MOFs as promising …
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HfO 2-based films are typically known to form four types of crystal structures, including monoclinic (M), cubic (C), tetragonal (T), and orthorhombic (O) phases. 18 The ferroelectricity of HfO 2-based films has been considered to originate from the metastable O phase (space group: Pca2 1). 18,19 Thus, understanding the details of the effect of …
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Thus far, most of the elementary building blocks for photonic quantum processors have been demonstrated separately. In general, universal quantum processors are required to perform arbitrary Gaussian operations (such as squeezing and phase shift gates) for linear transformation and at least one non-Gaussian operation (such as a cubic …
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