Results 151 to 160 of about 2,692 (254)

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand   +13 more
wiley   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg   +6 more
wiley   +1 more source

One-Step Coaxial 3D Printing of Pre-Vascularized Skin Organoid Models with ADSC Microspheres for Enhanced Wound Healing. [PDF]

open access: yesAdv Sci (Weinh)
Wang K   +10 more
europepmc   +1 more source

Duplex ultra-som angiologia aplicações práticas no manuseio do paciente vascular

open access: yesSemina: Ciências Biológicas e da Saúde, 1992
Domingos De Morais Filho   +4 more
openaire   +2 more sources

Chiral Phase Change Nanomaterials

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow   +11 more
wiley   +1 more source

Seasonal enhancement of the viral shunt catalyzes a subsurface oxygen maximum in the Sargasso Sea. [PDF]

open access: yesNat Commun
Gilbert NE   +17 more
europepmc   +1 more source

Caracterização de materiais pétreos através do ensaio por ultra-som

open access: yes, 2013
Dissertação de Mestrado em Engenharia Geológica e de Minas apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra.
openaire   +1 more source

Extremely Long Electron Lifetime in Spontaneously Passivated Polycrystalline Perovskite Layers via Illumination‐Assisted Trap Filling

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Perovskite solar cells (PSCs) are promising next‐generation photovoltaics. The high performance of PSCs is attributed to the long carrier lifetimes of perovskite photoabsorbers. However, the carrier lifetimes of polycrystalline perovskite layers, which serve as the photoabsorbers in practical PSCs, have remained limited to several tens of ...
Naoyuki Nishimura   +2 more
wiley   +1 more source

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