Motivated by recent progress in the superconductivity nonreciprocal phenomena, we study general theory of Josephson diodes. The central ingredient for diodes is asymmetric proximity process inside tunneling barrier. From symmetry breaking point view, there are two types diodes, inversion and time-reversal breaking. For case, applying voltage bias could effectively tune like voltage-dependent Rashba coupling or electric polarization giving rise to $I_c(V)\neq I_c(-V)$ $I_{r+}\neq I_{r-}$....

It is a great challenge to develop UV nonlinear optical (NLO) material due the demanding conditions of strong second harmonic generation (SHG) intensity and wide band gap. The first ultraviolet NLO selenite material, Y3 F(SeO3 )4 , has been obtained by control fluorine content in centrosymmetric CaYF(SeO3 )2 . two new compounds represent similar 3D structures composed yttrium open frameworks strengthened groups. large birefringence (0.138@532 nm 0.127@1064 nm) gap (5.06 eV)....

Sulfate crystals are often criticized for their low birefringence. The small anisotropic SO4 group is becoming the biggest bottleneck hindering application of sulfates in optical functional materials. In this study, we report a new method to significantly enhance birefringence sulfates. title compound increases recording 0.542@546 nm, which larger than that commercial birefringent crystal TiO2 (0.306@546.1 nm). At infrared wavelength, Hg4(Te2O5)(SO4) can be up 0.400@1064 also much YVO4...

For non-centrosymmetric (NCS) oxides intended for ultraviolet (UV) nonlinear optical (NLO) applications, achieving a wide band gap, large second harmonic generation (SHG) intensity, and sufficient birefringence to satisfy phase matching is significant challenge due their inherent incompatibility. To address this issue, study proposes strategy called framework-optimized structural transformation. Building upon centrosymmetric (CS) NaGa(SeO

The first selenite fluorosilicate, Pb 2 (SeO 3 )(SiF 6 ), modified with perfluorinated groups, features a broad transparency range, large birefringence, high LIDT, and excellent environmental stability, marking it potential birefringent material.

Engineering exposed active facets by doping impurities can dramatically modify the morphology and physicochemical properties of nanocrystalline hematite. In work described in this paper, through combination laser ablation liquid hydrothermal treatment techniques, faceted Mn-doped α-Fe2O3 nanocrystals (NCs) were prepared adjusting level elemental Mn. With increase Mn level, hematite crystal evolved sequentially from isotropic polyhedral nanoparticles (NPs) to {116}-faceted saucer-shaped...

Abstract Water‐induced parasitic reaction, e.g., spontaneous corrosion and hydrogen evolution has been widely recognized as a culprit of the poor electrochemical performance Zn anode in aqueous electrolyte. Nevertheless, how interfacial water, pertinent participant electrochemistry, affects reaction occurring on remains incompletely understood. Herein, step forward toward understanding relationship hydrogen‐bond network water is reported, where structure can be regulated by...

Exploring new material systems is a highly significant task in the field of inorganic chemistry. A mixed-valent selenium compound, Hg3Se(SeO3)(SO4), was successfully synthesized through situ reactions. This compound exhibits novel three-dimensional structure composed Hg3Se(SO4) layers bridged by SeO3 trigonal pyramids. It first containing (SeO3)2–, (SO4)2–, and Se2– simultaneously. In addition, Hg3Se(SeO3)(SO4) possesses wide bandgap (3.5 eV), moderate birefringence (Cal:0.064@546 nm,...

Abstract The stability of Zinc metal anodes (ZMAs) significantly limits the electrochemical performance and practical application aqueous Zn‐ion batteries (ZIBs). An efficient economical solution is use trace additives. However, efforts on additives are sparse, essential uncertainties remain concerning their role in stabilization ZMAs. Herein, a low‐cost ZnSO 4 ‐based electrolyte containing amounts Acesulfame‐K (AK) (only 1.0 mg mL −1 ) reported, which effectively suppresses parasitic...

Hg 2 (SeO 3 )(TeO ), a new tellurite–selenite birefringent crystal, showcases broad transparency range, large birefringence, and high thermal stability, positioning it as promising material.

Abstract Understanding and controlling parasitic reactions on the Zn metal anode (ZMA) surface is essential to enhance energy capabilities of aqueous zinc‐ion batteries (ZIBs). However, accurate regulation scheme often obscured due lack fundamental understanding concerning ZMA/electrolyte interface. Herein, descriptor interfacial revealed through a systematic comparative study three model trace adsorption‐type pyridinesulfonic acid‐based additives with structural variations. Using in situ...

Abstract Phosphate crystals are known for their low birefringence, a result of the symmetrical tetrahedral structure PO 4 groups. Attempts to increase birefringence have traditionally involved incorporation highly anisotropic ions and Yet, majority modified phospates still exhibit value below 0.1, due counteracting effects elements within coordination. The present study has first time discovered novel birefringence‐active Hg I 2 II O 9 unit successfully constructed layered structure, which...

Birefringent crystals are crucial for the miniaturization of optical devices. Phosphate crystals, characterized by their highly symmetrical tetrahedral structures, exhibit excellent stability and wide bandgaps. However, intrinsic symmetry...

The most stable structures of two-dimensional GexPy and GexAsy monolayers with different stoichiometries (e.g., GeP, GeP2, GeP3) are explored systematically through the combination particle-swarm optimization technique density functional theory optimization. For GeP3, we show that newly predicted C2/m structure is 0.16 eV/atom lower in energy than state-of-the-art P3̅m1 reported previously (Nano Lett. 2017, 17, 1833). computed electronic band suggest all metastable semiconductors highly...

Fluorescent labeled nanoparticles are expected to have potential applications in biological and imaging systems. In this study, order construct the fluorescent for pH-sensing, l-leucine amino acid is used as a spacer linker between cellulose nanocrystals (CNCs) pH-indicator dye (5 (and 6)-carboxy-2′,7′-dichlorofluorescein, CDCF). Characterization by Fourier transform infrared (FTIR), nuclear magnetic resonance (NMR), X-ray photoelectron spectroscopy (XPS) adopted follow chemical...

In recent years, various hollow structures of NiCo2S4 have been extensively investigated as battery-type electrode materials for hybrid supercapacitors. However, it still remains a challenge designing structure with sufficient electroactive sites to improve electrochemical performance. Herein, flower-like nanospheres (F-NCS HNSs) were controllably designed and synthesized by integrating surface self-reconstruction subsequent sulfidation strategy. Benefiting from the open architecture, F-NCS...

Hg 2 (SeO 3 )(SO 4 ), explored in the d 10 TM–Se( iv )–SO system, features first metal sulfate selenite with a large birefringence of up to 0.133 and 0.126 at 532 1064 nm, respectively.

Abstract UV nonlinear optical materials require the simultaneous achievement of a large second harmonic generation (SHG) coefficient (≥1 × KH 2 PO 4 (KDP), d ij > 0.39 pmV −1 ), wide bandgap ( λ < 300 nm, E g 4.2 eV), and moderate birefringence (0.05‐0.10@1064 nm) in single structure. Therefore, designing with excellent comprehensive performance is challenging task. Herein, four transparent selenite are successfully obtained, namely, Al (SeO 3 ) (H O) (1), Ga (2), NaGa (HSeO 6 (3), Cd...

Abstract It has historically been exceedingly challenging to create physically and chemically stable lanthanide compounds with strong second harmonic generation (SHG) due their preference central symmetry. In this work, five new non‐centrosymmetric selenites, namely, Ln 2 F (OH )(MoO 3 ) (SeO (Ln = Sm, Eu, Gd, Tb Dy), are achieved by partial fluorination of the oxygen polyhedron. An HF corrosion resistant supercritical hydrothermal method is developed, which a facile universal for...