Effect of heterovalent doping on photostimulated defect formation in CsPbBr3

2021 ◽  
Vol 31 (4) ◽  
pp. 465-468
Author(s):  
Ibrahim M. Sharaf ◽  
Anna V. Shurukhina ◽  
Irina S. Komarova ◽  
Alexei V. Emeline
Keyword(s):  
Defect Formation ◽  
Heterovalent Doping

Xenon ion irradiation of superconducting YBa2Cu3O7 thin films

1990 ◽  
Vol 48 (4) ◽  
pp. 92-93
Author(s):  
H. Watanabe ◽  
B. Kabius ◽  
B. Roas ◽  
K. Urban
Keyword(s):  
Defect Formation ◽  
Ion Irradiation ◽  
High Resolution Electron Microscopy ◽  
Structural Disorder ◽  
Flux Lines ◽  
Pinning Effect ◽  
Magnetic Flux Lines ◽  
Resolution Electron ◽  
Radiation Induced ◽  
Induced Defects

Recently it was reported that the critical current density(Jc) of YBa2Cu2O7, in the presence of magnetic field, is enhanced by ion irradiation. The enhancement is thought to be due to the pinning of the magnetic flux lines by radiation-induced defects or by structural disorder. The aim of the present study was to understand the fundamental mechanisms of the defect formation in association with the pinning effect in YBa2Cu3O7 by means of high-resolution electron microscopy(HRTEM).The YBa2Cu3O7 specimens were prepared by laser ablation in an insitu process. During deposition, a substrate temperature and oxygen atmosphere were kept at about 1073 K and 0.4 mbar, respectively. In this way high quality epitaxially films can be obtained with the caxis parallel to the <100 > SrTiO3 substrate normal. The specimens were irradiated at a temperature of 77 K with 173 MeV Xe ions up to a dose of 3.0 × 1016 m−2.

Defect formation in solids by decay of electronic excitations

1985 ◽  
Vol 147 (11) ◽  
pp. 523 ◽  
Author(s):  
M.I. Klinger ◽  
Ch.B. Lushchik ◽  
T.V. Mashovets ◽  
G.A. Kholodar' ◽  
M.K. Sheinkman ◽  
...  
Keyword(s):  
Defect Formation ◽  
Electronic Excitations

INFLUENCE OF THE LOCATION OF THE BASEBOARD JUMPER FOR FIRMWARE FOR DEFECT FORMATION IN CHAIN DRIVE SPROCKET FORGING

2020 ◽  
Author(s):  
I.A. Tserna ◽  
◽  
V.V. Bukhov ◽  
Keyword(s):  
Computer Simulation ◽  
Defect Formation ◽  
Chain Drive ◽  
Combine Harvester

The paper presents the results of computer simulation of the process of de-formationforged chain wheels, combine harvester; the influence of the placement of the jumper outline for firmware on the processes of defect formation in forging.

Solutocapillary-convection-driven macrovoid defect formation in polymeric membranes

2001 ◽  
Author(s):  
J. Zartman ◽  
V. Khare ◽  
A. Greenberg ◽  
M. Pekny ◽  
P. Todd ◽  
...  
Keyword(s):  
Defect Formation ◽  
Polymeric Membranes

Reasons for the formation of crack-like defects in 09Г2С heavy plate steel for tank steel structures

2020 ◽  
Vol 10 (5) ◽  
pp. 479-489
Author(s):  
Vitaly М. Goritsky ◽  
◽  
Georgy R. Shneyderov ◽  
Eugeny P. Studenov ◽  
Olga A. Zadubrovskaya ◽  
...  
Keyword(s):  
Impact Toughness ◽  
Defect Formation ◽  
Steel Structures ◽  
Controlled Rolling ◽  
Plate Steel ◽  
Heavy Plate ◽  
Oil Storage ◽  
Magnetic Inspection ◽  
Metal Microstructure

Determination of causes of crack-like defects in the heavy plate steel 09Г2С is a crucial task, the solution of which is aimed at improving the mechanical safety of oil storage steel vertical tanks. In order to determine the causes for the formation of a group of crack-like defects oriented towards rolling, revealed during grinding and magnetic inspection of the tank wall surface near the vertical weld, the analysis of the chemical composition and testing of the mechanical properties of heavy plate steel were carried out, including the determination of the anisotropy of impact toughness in the temperature range from +20 to –75 °С, analysis of metal microstructure in the area of defect formation on transversal sections and rolled surface. Impact bending tests of 09Г2С heavy plate steel after controlled rolling in longitudinal and transverse directions showed no anisotropy of impact toughness, as well as high purity of steel as for sulfur and titanium, which at higher content causes impact toughness anisotropy. The revealed features of metal microstructure near the defects made it possible to conclude that the crack-like defects were formed during the rolling of gas bubbles at the stage of preparing semi-finished rolled products for finishing rolling. One of the possible methods to prevent such defects from getting into finished rolled products is the use of automated systems of visual inspection of rolled products in the manufacturing process.

Micro-Raman Spectroscopy Evaluation of the Local Mechanical Stress in Shallow Trench Isolation CMOS Structures: Correlation with Defect Generation and Diode Leakage

1998 ◽  
Author(s):  
I. De Wolf ◽  
G. Groeseneken ◽  
H.E. Maes ◽  
M. Bolt ◽  
K. Barla ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Mechanical Stress ◽  
Defect Formation ◽  
Active Area ◽  
Wet Oxidation ◽  
Leakage Currents ◽  
Shallow Trench Isolation ◽  
Micro Raman Spectroscopy ◽  
Silicon Devices ◽  
Trench Isolation

Abstract It is shown, using micro-Raman spectroscopy, that Shallow Trench Isolation introduces high stresses in the active area of silicon devices when wet oxidation steps are used. These stresses result in defect formation in the active area, leading to high diode leakage currents. The stress levels are highest near the outer edges of line structures and at square structures. They also increase with decreasing active area dimensions.

Defect formation in low mismatch systems. Final report

1998 ◽  
Author(s):  
M. Matragrano ◽  
D.G. Ast
Keyword(s):  
Defect Formation ◽  
Final Report

scholarly journals Correction: Intrinsic defect formation and the effect of transition metal doping on transport properties in a ductile thermoelectric material α-Ag2S: a first-principles study

2021 ◽  
Author(s):  
Ho Ngoc Nam ◽  
Ryo Yamada ◽  
Haruki Okumura ◽  
Tien Quang Nguyen ◽  
Katsuhiro Suzuki ◽  
...  
Keyword(s):  
Transition Metal ◽  
Transport Properties ◽  
Thermoelectric Material ◽  
First Principles ◽  
Defect Formation ◽  
Chem Phys ◽  
Intrinsic Defect ◽  
Transition Metal Doping ◽  
Metal Doping ◽  
First Principles Study

Correction for ‘Intrinsic defect formation and the effect of transition metal doping on transport properties in a ductile thermoelectric material α-Ag2S: a first-principles study’ by Ho Ngoc Nam et al., Phys. Chem. Chem. Phys., 2021, DOI: 10.1039/d0cp06624a.

scholarly journals Insights into the Hydrogen‐Related Mechanism behind Defect Formation during Light‐ and Elevated‐Temperature‐Induced Degradation

2021 ◽  
pp. 2000584
Author(s):  
Benjamin Hammann ◽  
Lazhar Rachdi ◽  
Wolfram Kwapil ◽  
Florian Schindler ◽  
Martin C. Schubert
Keyword(s):  
Elevated Temperature ◽  
Defect Formation
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