Results 11 to 20 of about 1,387,503 (298)

Do Columnar Defects Produce Bulk Pinning? [PDF]

open access: yesPhysical Review Letters, 2000
5 pages, 5 figures, submitted to Physical Review ...
Indenbom, M.V.   +3 more
core   +6 more sources

Holographic dictionary and defects in the bulk

open access: yesEPJ Web of Conferences, 2016
We study the holographic dual of the AdS3 spacetime with a conical defect. We calculate the boundary two-point correlator using the holographic Gubser-Klebanov-Polyakov/Witten dictionary for a scalar field in the bulk.
Khramtsov Mikhail
doaj   +2 more sources

DLTS analysis of interface and near-interface bulk defects induced by TCO-plasma deposition in carrier-selective contact solar cells

open access: yesAIP Advances
We investigate the electrical characteristics of defects at the SiO2/Si interface, within the adjacent Si crystal, and through the depth profile of the bulk defect using three-dimensional deep-level transient spectroscopy (3D-DLTS).
Tomohiko Hara, Yoshio Ohshita
doaj   +2 more sources

Defect formation with bulk fields [PDF]

open access: yesPhysical Review D, 2006
It has recently been realized that brane-antibrane annihilation (a possible explanation for ending inflation) may result in defect formation, due to the dynamics of the tachyon field. Studies of this possibility have generally ignored the interaction of the brane fields with fields in the bulk; recently it has been argued [1] that interactions with ...
Moore, Guy D., Stoica, Horace
openaire   +2 more sources

Topological Defects and Bulk Melting of Hexagonal Ice [PDF]

open access: yesThe Journal of Physical Chemistry B, 2005
We use classical molecular dynamics combined with the recently developed metadynamics method [A. Laio and M. Parrinello, Procs. Natl. Acad. Sci. USA 99, 20 (2002)] to study the process of bulk melting in hexagonal ice. Our simulations show that bulk melting is mediated by the formation of topological defects which preserve the coordination of the ...
Donadio D, Raiteri P, Parrinello M
openaire   +4 more sources

A study of the performance of organometal trihalide perovskite solar cell due to defects in bulk CH3NH3PbI3 (MAPI) perovskite layer [PDF]

open access: yes, 2021
In this numerical simulation research, we have investigated device performances of p-i-n type organometal trihalide perovskite solar cell by introducing deep and shallow defects in the bulk halide perovskite layer. The organometal halide perovskite ...
M.L.C. , Attygalle   +3 more
core   +1 more source

Bulk and Surface Tunneling Hydrogen Defects in Alumina [PDF]

open access: yesPhysical Review Letters, 2013
We perform ab initio calculations of hydrogen-based tunneling defects in alumina to identify deleterious two-level systems (TLS) in superconducting qubits. The defects analyzed include bulk hydrogenated Al vacancies, bulk hydrogen interstitial defects, and a surface OH rotor.
Holder, Aaron M.   +3 more
openaire   +3 more sources

Vacancy defect distributions in bulk ZnO crystals [PDF]

open access: yesSPIE Proceedings, 2007
We have used positron annihilation spectroscopy to study vacancy defects in ZnO single crystals grown by various methods from both commercial and academic sources. The combination of positron lifetime and Doppler broadening techniques with theoretical calculations provides the means to deduce both the identities and the concentrations of the ...
Tuomisto, Filip, Look, David C.
openaire   +3 more sources

Synergy of Bulk Defects and Surface Defects on TiO2 for Highly Efficient Photocatalytic Production of H2O2

open access: yes, 2023
Artificial photosynthesis of H2O2 by TiO2-based semiconductors is a promising approach for H2O2 production. However, the efficiency of pristine TiO2 is still limited by rapid charge separation and low O2 adsorption capacity.
Cong Fu (23214)   +11 more
core   +2 more sources

Applications of Photoluminescence Microscopy for Probing Bulk Defects in Silicon [PDF]

open access: yes, 2020
Global adoption of photovoltaics for power generation is expected to accelerate over the next decades due to increased concern regarding climate change and their reduced cost.
Lee Chin, Robert
core   +1 more source

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