In this paper, Bi2O3-doped (K0.5Na0.5)NbO3 (x = 0.1, 0.2, 0.3, 0.4) lead-free ceramics are prepared by a conventional solid-state reaction and analyzed studying the structure, ferroelectric, piezoelectric properties. It is found that doping of Bi2O3 increases proportion trigonal phase in KNN ceramics, thus enabling construction with an orthogonal–trigonal boundary at room temperature. At same t...

Studies of the heat capacity and dielectric properties (1-x)BiFeO 3-x PbFe 0.5 Nb O 3 ceramic multiferroics in temperature range 300-800 K were carried out. Based on studies concentration dependences constant, phase transition temperatures system determined. (1-x)PbFe with various x concentrations. It is shown that an increase component, ferroelectric antiferromagnetic transitions BiFeO shift t...

Ferroelectric oxides are of continuing interest in a new generation of electronic devices, such as piezoelectric actuators and nonvolatile memory devices. In general, their application involves manipulation of the polarization of the ferroelectric and the polarization depends sensitively on boundaries and interfaces. Here we study the dynamic interaction during polarization switching of domains...

Recent experiments on ferroelectric gating have introduced a novel functionality, i.e., nonvolatility, in graphene field-effect transistors. A comprehensive understanding in the nonlinear, hysteretic ferroelectric gating and an effective way to control it are still absent. In this Letter, we quantitatively characterize the hysteretic ferroelectric gating using the reference of an independent ba...

1 Department of Arctic and Marine Biology, UiT The Arctic University of Norway, Tromsø, Norway, 2 Fram Centre, Norwegian Polar Institute, Tromsø, Norway, 3 Fram Centre, Akvaplan-Niva, Tromsø, Norway, 4 Department of Marine Sciences Tjärnö, University of Gothenburg, Strömstad, Sweden, 5 Department of Arctic Biology, University Centre on Svalbard, Longyearbyen, Norway, 6 Department of Global Chan...

properties in ferroelectric superlattices I. B. Misirlioglu, M. T. Kesim, and S. P. Alpay Faculty of Engineering and Natural Sciences, Sabanci University, Tuzla/Orhanli, 34956 Istanbul, Turkey Department of Materials Science and Engineering and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, USA Department of Physics, University of Connecticut, Storrs, Conn...

During May 1988 a 1230-m ice thickness profile was drilled across a floe in Fram Strait. The probability density function of this data set corresponds closely to extensive ice draft measurements from submarines and the thickness distribution of floes sampled randomly in the area. The observed similarity is attributed to the topography of the pack ice in Fram Strait where each floe is composed o...

State = R≥0 ×R≥0 For an abstract state (d, a), we call dist(d, a) = d+ a the energy-adjusted distance. The computational state comprises: • A simple distance d ∈ R≥0 to the base station, like the simple distance of an abstract state. • An energy level e ∈ Energy. • An energy-faithful adjustment f ∈ R≥0 capturing energy deficiencies along the route to the base station. • A table nt containing en...