Results 31 to 40 of about 115,078 (291)

Influence of strain and oxygen vacancies on the magnetoelectric properties of multiferroic bismuth ferrite

open access: yes, 2005
The dependencies on strain and oxygen vacancies of the ferroelectric polarization and the weak ferromagnetic magnetization in the multiferroic material bismuth ferrite, BiFeO_3, are investigated using first principles density functional theory ...
Claude Ederer   +5 more
core   +1 more source

Gold Nanoparticles on Yttrium Modified Titania: Support Properties and Catalytic Activity [PDF]

open access: yes, 2011
A series of titanium oxide catalysts modified with yttrium has been prepared by sol¿gel method and their structural properties have been studied. The incorporation of yttrium in the titania lattice favors the formation of oxygen vacancies while at low Y ...
Centeno Gallego, Miguel Ángel   +7 more
core   +1 more source

Vacancies and vacancy-oxygen complexes in silicon: Positron annihilation with core electrons [PDF]

open access: yesPhysical Review B, 1998
Various point defects in silicon are studied theoretically from the point view of positron annihilation spectroscopy. Properties of a positron trapped at a single vacancy, divacancy, vacancy-oxygen complexes $({\mathrm{VO}}_{n}),$ and divacancy-oxygen complex are investigated. In addition to the positron lifetime and positron binding energy to defects,
Kuriplach, Jan   +4 more
openaire   +3 more sources

Ab initio study of the two-dimensional metallic state at the surface of SrTiO3: importance of oxygen vacancies

open access: yes, 2012
Motivated by recent angle-resolved photoemission spectroscopy (ARPES) observations of a highly metallic two-dimensional electron gas (2DEG) at the (001) vacuum-cleaved surface of SrTiO3 and the subsequent discussion on the possible role of oxygen ...
Jeschke, Harald O.   +3 more
core   +1 more source

Microscopic origin of the mobility enhancement at a spinel/perovskite oxide heterointerface revealed by photoemission spectroscopy [PDF]

open access: yes, 2017
The spinel/perovskite heterointerface $\gamma$-Al$_2$O$_3$/SrTiO$_3$ hosts a two-dimensional electron system (2DES) with electron mobilities exceeding those in its all-perovskite counterpart LaAlO$_3$/SrTiO$_3$ by more than an order of magnitude despite ...
Borisov, V.   +17 more
core   +2 more sources

Oxygen-vacancy-related relaxation and conduction behavior in (Pb1-xBax)(Zr0.95Ti0.05)O3 ceramics

open access: yesAIP Advances, 2014
(Pb1-xBax)(Zr0.95Ti0.05)O3 (x = 0, 0.025, 0.05, 0.075 and 0.1) ceramics were prepared via a solid-state reaction route. Low-frequency (20 ∼ 2 × 107 Hz) dielectric properties were investigated in the temperature region of 25-650 °C.
Tian-Fu Zhang   +6 more
doaj   +1 more source

Femtosecond visualization of oxygen vacancies in metal oxides [PDF]

open access: yesScience Advances, 2020
Femtosecond spectroscopy combined with first-principle calculations enables determination of oxygen-vacancy configuration.
Zhang, Xinping   +7 more
openaire   +2 more sources

In Situ Analysis of Oxygen Vacancies and Band Alignment in HfO2/TiN Structure for CMOS Applications

open access: yesNanoscale Research Letters, 2017
The density of oxygen vacancies characterization in high-k/metal gate is significant for semiconductor device fabrication. In this work, a new approach was demonstrated to detect the density of oxygen vacancies by in situ x-ray photoelectron spectroscopy
Da-Peng Xu   +9 more
doaj   +1 more source

Synthesis of Surface Oxygen-deficient BiPO4 Nanocubes with Enhanced Visible Light Induced Photocatalytic Activity [PDF]

open access: yesMaterials Research, 2017
The visible light driven BiPO4 nanocubes with sufficient surface oxygen deficiency were fabricated by a hydrothermal process and subsequently ultrasonic assistant Fe reduction process.
Bingtao Shi   +5 more
doaj   +1 more source

Early Clinical, Imaging, and Pathological Characteristics of SRPK3/TTN‐Digenic Myopathy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective SRPK3/TTN‐digenic myopathy was recently established as a skeletal muscle myopathy caused by digenic inheritance. This study characterizes the early clinical presentation of SRPK3/TTN‐digenic myopathy in one previously reported and seven newly identified pediatric patients.
Rotem Orbach   +23 more
wiley   +1 more source

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