Electric-field-controllable luminescence of a ZnS:Mn/PMN–PT system is demonstrated. The light-emission ZnS:Mn caused by the piezoelectric potential, resulting from converse effect PMN–PT substrate. Simultaneous generation light and ultrasound waves observed in this single system, which offers great potential to develop dual-modal source combing ultrasonic for various applications.

Flexible ferroelectric devices have been a hot-spot topic because of their potential wearable applications as nonvolatile memories and sensors. Here, high-quality (111)-oriented BiFeO3 films are grown on flexible mica substrates through an appropriate design SrRuO3/BaTiO3 double buffer layers. exhibits the largest polarization (saturated Ps ≈ 100 μC/cm2, remnant Pr 97 μC/cm2) among all reported films, is very stable in 104 bending cycles under 5 mm radius. Accordingly, memristor behaviors...

Making an oxide-layered antiferromagnet Antiferromagnetism, a state of matter where ordered neighboring spins point in opposite directions, can be engineered layered heterostructures, which affords control over their properties. Doing so oxide heterostructures is tricky because the necessary ferromagnetism constituent layers may not survive thinning to nanometer thicknesses. Chen et al. overcame this materials challenge by finding and growing right combination substrate, magnetic, insulating...

Titanium oxides have many fascinating optical and electrical properties, such as the superconductivity at 2.0 K in cubic titanium monoxide TiO polycrystalline bulk. However, lack of single crystals or epitaxial films has prevented systematic investigations on its superconductivity. Here, we report basic characterizations epitaxially grown (0001)-oriented Al2O3 substrates. The magnetic electronic transport measurements confirmed that is a type-II superconductor record high Tc about 7.4 K....

The kinetics of electrode reactions including mass transfer and surface reaction is essential in electrocatalysis, as it strongly determines the apparent rates, especially on nanostructured electrocatalysts. However, important challenges still remain optimizing given catalysts with suitable constituents, morphology, crystalline design to maximize electrocatalytic performances. We propose a comprehensive kinetic model coupling nanocatalyst-modified explore shed light optimization...

We report that (La0.07Ba0.93)SnO3 films grown epitaxially on SrTiO3(001) substrates by laser ablation at 760°C show a cubic perovskite structure of lattice constant 4.121Å, excellent optical transmittance in the visible range, and weak metallic behavior with low resistivity about 4mΩcm within 10–300K. The transparent oxide are n-type conductors, carrier concentration mobility room temperature 2×1021cm−3 0.69cm2∕Vs, respectively, direct allowed band gap 4.02eV. effect deposition structural,...

Abstract Information processing with optoelectronic devices provides an alternative way to efficiently process hybrid optical and electronic signals. Ferroelectric field‐effect transistors (FeFETs) can effectively respond external electrical stimuli by modulating their polarization states. Here, a 2D FeFET is demonstrated the epitaxial growth of high‐quality bismuth layered oxyselenide (Bi 2 O Se) films on PMN‐PT(001) ferroelectric single‐crystal substrates. Upon switching direction PMN‐PT,...

The commensurate La${}_{0.67}$Ca${}_{0.33}$MnO${}_{3}$ films, of which the bulk is a ferromagnetic-metal (FM), can show strikingly different ground states when grown on NdGaO${}_{3}$ substrates various orientations. With larger orthorhombic lattice distortion in substrates, (110) films grow essentially strain-free, but (100) and (001) are anisotropically strained, accompanied by an increased orthorhombicity. As result, while constantly bulklike FM state, others behave dramatically different,...

Epitaxial La0.7Ca0.3MnO3 (LCMO) films of 15–150nm thick have been grown on SrTiO3(001) [STO(001)] and (LaAlO3)0.3(Sr2AlTaO6)0.7(001) [LSAT(001)] substrates with lattice mismatches 1.11% 0.15%, respectively. Asymmetric x-ray reciprocal space mapping was used to determine the strain state evolution in films. For LCMO/STO(001), as film thickness increases, at about 30nm a change from fully partially strained has induced, further annealing 900°C can relax LCMO/LSAT(001), however, due negligible...

The phase transition temperatures of CaZrO 3 ‐doped (Na 0.49 K Li 0.02 )(Nb 0.8 Ta 0.2 )O lead‐free piezoelectrics ( LKNNT ‐ CZ 5) have been studied with X‐ray diffraction and Raman scattering. It is found that 5 ceramics powders the same crystallite size (~2–5 μm) exhibit distinctly different behaviors versus temperature. ceramic bulk changes its orthorhombic to tetragonal structure abruptly after being pulverized at room temperature( RT ), follows a sequence increasing temperature: –65°C),...

A comprehensive understanding of strain coupling across heterointerfaces and its impact on physical properties oxide heterostructures is important for elucidating the mechanisms certain novel phenomena occurring at heterointerfaces, such as magnetoelectric coupling, tunneling electroresistance effects, strain-driven exchange bias. Using...

Although the band topology of ZrGeSe has been studied via magnetic torque technique, electronic transport behaviors related to relativistic Fermions in are still unknown. Here, we first report systematic properties high-quality single crystals under fields up 14 T. Resistivity plateaus temperature dependent resistivity curves both presence and absence as well large, non-saturating magnetoresistance low-temperature region were observed. By analyzing temperature- angular-dependent Shubnikov-de...

Abstract Linear magnetoresistance (LMR) is a special case of magnetic-field induced resistivity response, which has been reported in highly disordered semiconductor systems and topological materials. In this work, we observe LMR effect half-metallic perovskite Sr 2 CrMoO 6 thin films, the maximum MR value exceeds +1600% at K 14 T. It an unusual behavior ferrimagnetic double material like , are known for intrinsic tunneling-type negative magnetoresistance. high carriers’ density (~10 22 cm −3...

Compositing negative-thermal-expansion materials with Al is an effective strategy for obtaining light zero-thermal-expansion (ZTE) materials. However, the dimensional stability of those composites not guaranteed due to residual stress generated during fabrication and microstructure instability matrix. Here, we studied effects heat treatments on ZTE Cu2P2O7/ZL101 composite (with 32 vol. % ZL101) prepared using pressure infiltration method. Compared as-cast case, after a certain treatment...

We explore manganite interface magnetism in epitaxially grown La0.7Sr0.3MnO3(LSMO)/SrTiO3 ultrathin superlattices (SL) along (110) orientation. we show that robust ferromagnetism persists down to four monolayers LSMO(MLs) (~1.1 nm thickness), of which 50% Mn is at the state. Above eight MLs, magnetic moment nearly saturated theoretical value 3.7u_B, with an estimated 3.2u_B. In comparison (100)-oriented SLs were previously shown have a spin canted ground state, (110)-oriented exhibit...

Strongly correlated perovskite oxides exhibit a plethera of intriguing phenomena and stimulate great potential for multifunctional device applications. Utilizing tunable uniaxial strain, rather than biaxial or anisotropic delivered from the crystallography single crystal substrate to modify ground state strongly has rarely been addressed phase-space control. Here, we show that physical properties La2/3Ca1/3MnO3 (LCMO) films are remarkably different depending on crystallographic orientations...

This study represents a highly sensitive approach of determination lanthanides by nanochain enhanced laser induced breakdown spectroscopy (LIBS). Owing to geometrical characteristics the nanochains, hotspot in the...

We epitaxially grew 7 mol. % Nd-doped BaSnO3 (NBSO) thin films on double-side polished SrTiO3 (001) single-crystal substrates and optimized the oxygen pressure (PO2), substrate temperature (TS), film thickness (t) to achieve excellent structural, optical, electrical performance. By keeping TS (=800 °C) constant, NBSO prepared at PO2 = 10 Pa show best crystallization, yielding a full-width half-maximum (FWHM) of x-ray diffraction rocking curve 0.079° exhibiting room-temperature resistivity...

(K,Na)NbO3-based lead-free ferroelectric materials are highly desired in modern electronic applications and have long been considered as a strong candidate for replacing (Pb,Zr)TiO3, but most of them deficient large remnant polarization decent thermal stability. Here, unique 0.95(K0.49Na0.49Li0.02)(Nb0.8Ta0.2)O3-0.05CaZrO3 with 2 wt % MnO2 addition (KNNLT-CZ-M) film special nanocomposite structures grown on La0.7Sr0.3MnO3-coated SrTiO3(001) substrate is demonstrated. The KNNLT-CZ-M films...

We grow epitaxial (La0.8Pr0.2)0.67Ca0.33MnO3 films simultaneously on the lattice-closely-matched substrates, cubic (LaAlO3)0.3(Sr2AlTaO6)0.7 [LSAT(001)] and orthorhombic NdGaO3 [NGO(001) NGO(110)]. While all as-grown show a ferromagnetic-metallic (FM) ground state as observed for bulk target, annealed quite different magnetotransport behavior follows: NGO(110) they robust FM state, LSAT(001) NGO(001) however, surprisingly coexisted antiferromagnetic insulating with high phase instability in...