Results 161 to 170 of about 284,309 (382)
Tunable and Persistent Macroscopic Polarization in Nominally Centrosymmetric Defective Oxides
Advanced Materials, EarlyView.This work introduces an approach to defect‐mediated symmetry breaking and built‐in polarization in nominally centrosymmetric defective oxides, Gd‐doped CeO2‐δ films, by controlling macroscopic charge asymmetry. Electric field‐driven asymmetric redistribution of oxygen vacancies induces a switchable, stable polarization, leading to a notable, persistent
Dae‐Sung Park +10 more
wiley +1 more source
Advanced Materials, EarlyView.By tuning grain size through nanoscale grain‐boundary segregation of single‐element additives, high‐performance BaTiO₃‐based multilayer ceramic capacitors (MLCCs) exhibit exceptionally low dielectric loss over a wide frequency range and excellent thermal stability.
Ji‐Sang An +5 more
wiley +1 more source
Microstructure and Dielectric Properties of High Permittivity Ceramics
, 1965 Kiyoshi Okazaki, Shigeru KASIWABARA
openalex +2 more sources
Colossal Cryogenic Electro‐Optic Response Through Metastability in Strained BaTiO3 Thin Films
Advanced Materials, EarlyView.Utilizing the thermodynamic theory of optical properties, a colossal cryogenic electro‐optic response in BaTiO3 thin films is designed and demonstrated by stabilizing a low symmetry metastable monoclinic phase via epitaxial strain tuning with an electro‐optic response reaching ≈2516 pm V−1 at 5 K. This approach represents a new paradigm for engineering
Albert Suceava +16 more
wiley +1 more source
Design and simulation of zipping variable capacitors
, 2007 Variable capacitors are essential for building tunable RF systems. We present here the design and simulation of novel zipping variable capacitors with a high permittivity dielectric layer. Two modelling techniques are presented: finite element simulation
Holmes, A.S., Pu, S.H, Yeatman, E.M.
core
Broad-Band Measurement of all Complex Permeability Tensor Components and Complex Permittivity of Ferrites using a Rectangular Waveguide [PDF]
, 1997 Patrick Quéffélec +3 more
openalex +1 more source
Advanced Materials, EarlyView.M13 bacteriophage films deposited on micro interdigitated electrodes behave as a Randles simplified equivalent circuit under direct current. We derive contact and film resistance as well as capacitance of films of M13 phages, aromatic curli fibers or pilA‐containing nanowires.
Daniel Modafferi +6 more
wiley +1 more source
Temperature effects on soil bulk dielectric permittivity measured by time domain reflectometry: A physical model [PDF]
, 1999 Dani Or, Jon M. Wraith
openalex +1 more source
Advanced Materials, EarlyView.In this work, nonzero Berry curvature in photonic crystals is induced by breaking unit cell inversion symmetry through spatial shifts rather than geometrical modifications. This enables the design of ultraconfined topological states with subwavelength in‐plane field confinement and out‐of‐plane field isolation.
Yi Ji Tan, Ranjan Singh
wiley +1 more source