Abstract The discovery of the HfO 2 ‐based ferroelectric films has opened new opportunities for using this silicon‐compatible material to realize low‐power logic circuits and high‐density non‐volatile memories. functional performances ferroelectrics are intimately related their dynamic response external stimuli, such as electric fields at finite temperatures. In case films, time‐dependent imprint wake‐up effect, which distinguish them from conventional ferroelectrics, play important roles in...

RFe2O4 is expected to deliver high-performance ferroelectricity that can reduce the fatigue associated with polarization reversal and electric field (coercive field) required for switching because its originates from charge ordering. However, there have been very few reports on fabrication of thin films material severe growth condition an extremely reduced oxygen atmosphere, even though oxide. To provide cutting-edge insights into elucidating essential fundamental properties RFe2O4, we...

Strain is a leading candidate for controlling magnetoelectric coupling in multiferroics. Here, we use x-ray diffraction to study the between magnetic order and structural distortion epitaxial films of orthorhombic ($o$-) perovskite ${\mathrm{LuMnO}}_{3}$. An antiferromagnetic spin canting $E$-type structure shown be related ferroelectrically induced change propagation vector. By comparing different orientations thicknesses, these quantities are found controlled by $b$-axis strain. It that...

We fabricated highly insulating EuTiO3 (001) epitaxial thin films capped with SrTiO3 protection layers on substrates by combining pulsed laser deposition and post-annealing processes. The layer played a significant role in compensation of oxygen vacancies the preventing excess oxidation “locking” perovskite structure an manner from top during air-annealing process. obtained demonstrated antiferromagnetic transition at 5.4 K, quantum paraelectricity down to ∼25 magnetoelectric coupling...

The construction of well-defined transition-metal clusters has attracted substantial attention due to their unique chemical and/or physical properties. Metal with 1D or 2D structures are now accessible by template-synthesis methods, in which multiple metal atoms arranged the aid template molecules and structures. However, rational synthesis 3D remains challenging, mostly a lack appropriate molecules. Herein, we report butterfly shaped Pd4 framework (2) edge-sharing Pd6 tetrahedra (5)...

The atmospheric pressure plasma-assisted chemical vapor deposition technique has successfully demonstrated unintentionally doped (UID) Ga2O3 growth at 350 °C. This allows independent and homogeneous multiple nuclei of Ga2O3, leading to three-dimensional grain a rate ⁓0.17 μm/h. In the study Schottky barrier diodes, Schottky-like current (I)–voltage (V) response shows typical behavior on Ga2O3. is good sign an early stage device development grown sample. extracted height ⁓2.20 eV was higher,...

We employ resonant soft x-ray diffraction to individually study the magnetic ordering of Mn and Tm sublattices in single-crystalline films orthorhombic $(o\text{\ensuremath{-}})\phantom{\rule{0.16em}{0ex}}\mathrm{TmMn}{\mathrm{O}}_{3}$. The same wave vector $(0\phantom{\rule{0.16em}{0ex}}q\phantom{\rule{0.16em}{0ex}}0)$ with $q\ensuremath{\approx}0.46$ is found for both ionic species, suggesting that familiar antiferromagnetic order ions induces a on unpaired $4f$ electrons. Indeed,...

The planar tetrapalladium cluster Pd4{Si(iPr)2}3(CNtBu)4 (4) was synthesised in 86% isolated yield by the reaction of palladium(0) bis(isocyanide) Pd(CNtBu)2 with octaisopropylcyclotetrasilane (3). In course this reaction, palladium atoms are clustered via insertion into Si–Si bonds 3, followed extrusion one SiiPr2 moiety and reorganisation to afford 4 a 54-electron configuration. CNtBu ligand found be easily replaced N-heterocyclic carbene (iPr2IMMe) more coordinatively unsaturated...

Multiferroic properties of orthorhombic HoMnO3 (Pbnm space group) are significantly modified by epitaxial compressive strain along the a-axis. We able to focus on effect solely a-axis using an YAlO3 (010) substrate, which has only a small lattice mismatch with other in-plane direction (the c-axis). strained and relaxed thin films compared those reported for bulk, found differ widely. A film exhibits bulk-like such as ferroelectricity below 25 K incommensurate antiferromagnetic order 39 K,...

The denitrogenative reductive coupling of two molecules CN t Bu was achieved on a multinuclear silylene-bridged Ni cluster framework, and possible intermediary clusters were isolated.

The cation ratio, crystal structure, and ferroelectric properties of TbMnO3 films on (010) oriented YAlO3 substrates grown by pulsed laser deposition were investigated. We found that the ratio is altered background gas pressure, stoichiometric have larger critical thicknesses than Tb-rich films. order was severely disturbed in showing a lower transition temperature smaller polarization. In addition, frequency dispersion observed dielectric response relaxed films, which may be introduced...

Heptanuclear palladium clusters were synthesized <italic>via</italic> the reaction of [Pd(CN^tBu)₂]₃ with Ph-substituted cyclooligosilanes. The generation SiPh moiety upon migration a Ph group is key to assembling seven atoms effectively.

Low-temperature homoepitaxial growth of β-Ga2O3(-201) has been successfully demonstrated by the atmospheric pressure plasma-enhanced chemical vapor deposition technique. To search for low-temperature growth, temperature-dependent studies were carried out between 350 and 600 °C. A high N2 gas flow rate, low gallium source concentration, oxygen rate ratio played key roles in growing independent homogeneous multiple nuclei Ga2O3, leading to three-dimensional grain mode, single crystallinity,...

A new type of ferroelectricity, originating from charge order and coupled to magnetism, occurs in YbFe2O4 containing triangular Fe/O double layers, which has recently generated great interest this material. tolerates more than 10% iron deficiency even bulk single crystals with space group R m. Even though a large number Fe deficiencies are introduced the thin film form due vaporization ions during deposition at high temperatures, crystal structure m films never changes within Fe/Yb...

Neutron diffraction studies on epitaxially strained orthorhombic (010) oriented $\mathrm{TbMn}{\mathrm{O}}_{3}$ thin films verify a theoretical prediction of an unusual magnetic phase with coexisting incommensurate and commensurate order. Magnetic field dependent measurements the $(0\phantom{\rule{0.16em}{0ex}}q\phantom{\rule{0.16em}{0ex}}1)$ $(0\phantom{\rule{0.16em}{0ex}}1+q\phantom{\rule{0.16em}{0ex}}1)$ Bragg reflections confirm that intensity corresponding to $q$ value has contributions...

In this study, the yield of nanosheets fabricated through exfoliation Li(Ni0.33Co0.33Mn0.34)O2 in aqueous solution was enhanced by performing an additional chemical oxidation step. The lateral dimensions and thickness obtained were estimated via atomic force microscopy, their composition determined using thermogravimetry, analysis, X-ray absorption near edge structure measurements, while local crystal examined Raman spectroscopy fine techniques. addition, electrode properties restacked KOH...