Results 71 to 80 of about 48,017 (305)

Assessment of Strain-Generated Oxygen Vacancies Using SrTiO3 Bicrystals

, 2019
Atomic-scale defects strongly influence the electrical and optical properties of materials, and their impact can be more pronounced in localized dimensions.
H. -S. Lee, E. Tochigi, N. Shibata, T. Yamamoto, Y. Ikuhara, S. -D. Kim, T. Mizoguchi, CHOI, SI YOUNG, J. Ryu, M. Choi, S. -J. L. Kang   +10 more
core   +2 more sources

Evaluation of dielectric and piezoelectric behavior of unpoled and poled barium titanate polycrystals with oxygen vacancies using phase field method

International Journal of Smart and Nano Materials, 2016
This article studies the dielectric and piezoelectric behavior of unpoled and poled barium titanate (BaTiO3) polycrystals with oxygen vacancies. A phase field model is employed for BaTiO3 polycrystals, coupled with the time-dependent Ginzburg–Landau ...
Fumio Narita, Takuya Kobayashi, Yasuhide Shindo   +2 more
doaj   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Extraction of sub-gap density of states via capacitance–voltage measurement for the erasing process in a TFT charge-trapping memory

AIP Advances, 2018
Charge-trapping memories (CTMs) based on zinc tin oxide (ZTO) semiconductor thin-film transistors (TFTs) can be programmed by a positive gate voltage and erased by a negative gate voltage in conjunction with light illumination.
Yen-Chang Chiang, Yang-Hsuan Hsiao, Jeng-Ting Li, Jen-Sue Chen   +3 more
doaj   +1 more source

Oxygen-deficient perovskites for oxygen evolution reaction in alkaline media: a review

, 2022
Oxygen vacancies in complex metal oxides and specifically in perovskites are demonstrated to significantly enhance their electrocatalytic activities due to facilitating a degree of control in the material’s intrinsic properties.
Ahmed Abdel-Wahab (1748986), Aya E. Abusrafa (14152395), Ahmed Badreldin (9574341)   +2 more
core   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Local phenomena at grain boundaries: An alternative approach to grasp the role of oxygen vacancies in metallization of VO2

Journal of Materiomics, 2018
Vanadium dioxide (VO2) undergoes an insulator to metal transition (MIT) and an accompanied phase transition from a monoclinic (M) structure to rutile (R) structure near room temperature, forming the basis for many VO2-based functional devices.
Wanheng Lu, Lai-Mun Wong, Shijie Wang, Kaiyang Zeng   +3 more
doaj   +1 more source

Detection of Oxygen Vacancies in Oxides by Defect-Dependent Cataluminescence

, 2015
Oxygen vacancies can control a number of distinct properties of oxides. However, rapid and simple detection of oxygen vacancies is a great challenge owing to their elusive species and highly diluted contents.
Si Wang (519067), Chao Lu (4374), Lijuan Zhang (36878)   +2 more
core   +1 more source

Strain-Engineered Oxygen Vacancies in CaMnO₃ Thin Films [PDF]

, 2017
We demonstrate a novel pathway to control and stabilize oxygen vacancies in complex transition-metal oxide thin films. Using atomic layer-by-layer pulsed laser deposition (PLD) from two separate targets, we synthesize high-quality single-crystalline ...
Weibing Yang, Elke Arenholz, Mario U. Delgado-Jaime, Gray, Alexander X., Aschauer, Ulrich Johannes, Kobata, Masaaki, de Groot, Frank M. F., Xiaoxing Xi, Aschauer, Ulrich, Spaldin, Nicola A., Alexander X. Gray, Arenholz, Elke, Delgado-Jaime, Mario U., Xi, Xiaoxing, Masaaki Kobata, Nicola A. Spaldin, Frank M. F. de Groot, Bruce A. Davidson, Golalikhani, Maryam, Yang, Weibing, Kanishka D. Wijesekara, Ulrich Aschauer, Delgado Jaime, Mario, Maryam Golalikhani, Chandrasena, Ravini U., De Groot, Frank M.F., Lei, Qingyu, Kobayashi, Keisuke, Inorganic Chemistry and Catalysis, Sub Inorganic Chemistry and Catalysis, Qingyu Lei, Wijesekara, Kanishka D., Davidson, Bruce A., Ravini U. Chandrasena, Keisuke Kobayashi   +34 more
core   +1 more source

Consumed by Abdominal Distention

Arthritis Care &Research, EarlyView.
Abimbola Fadairo‐Azinge, James Grenert, Brian Haas, Mary Margaretten   +3 more
wiley   +1 more source