Results 61 to 70 of about 11,494 (230)

Current–voltage characteristics of manganite–titanite perovskite junctions [PDF]

open access: yesBeilstein Journal of Nanotechnology, 2015
After a general introduction into the Shockley theory of current voltage (J–V) characteristics of inorganic and organic semiconductor junctions of different bandwidth, we apply the Shockley theory-based, one diode model to a new type of perovskite junctions with polaronic charge carriers. In particular, we studied manganite–titanate p–n heterojunctions
Ifland, Benedikt   +6 more
openaire   +4 more sources

Peixe Zircon as a Quality Control Reference Material in U‐Pb Geochronology by LA‐ICP‐MS

open access: yesGeostandards and Geoanalytical Research, Volume 50, Issue 2, Page 369-389, June 2026.
Key Points Peixe#0 zircon was characterised for U‐Pb geochronology using CA‐ID‐TIMS, SIMS and a long‐term LA‐ICP‐MS data set. The consistent results establish Peixe#0 as a reference material for U‐Pb quality control. Trace element heterogeneity requires careful, CL‐guided spot selection.
Margareth Sugano Navarro   +7 more
wiley   +1 more source

Concurrent sinter-crystallization and microwave dielectric characterization of CaO-MgO-TiO2-SiO2 glass-ceramics

open access: yesJournal of Asian Ceramic Societies, 2020
The present work aims to clarify sinter-crystallization behavior and microwave dielectric features of CaO-MgO-TiO2-SiO2 glass-ceramics fabricated via one-step sintering procedure at 800–950°C for 4 h. In this regard, starting glasses were obtained from a
Mahboubeh Kiani Zitani   +6 more
doaj   +1 more source

Geology of a Part of the Panamint Range, California [PDF]

open access: yes, 1932
The Panamint Range is a tilted fault-block, uplifted probably in Tertiary time and rejuvenated by very complex recent faulting on the west. This great block is approximately 100 miles long, but the reconnaissance geologic map covers only a tract in the ...
Murphy, F. M.
core  

Cold subduction and the formation of lawsonite eclogite - constraints from prograde evolution of eclogitized pillow lava from Corsica [PDF]

open access: yes, 2010
International audienceA new discovery of lawsonite eclogite is presented from the Lancône glaucophanites within the Schistes Lustrés nappe at Défilé du Lancône in Alpine Corsica.
Andersen, Torgeir B.   +3 more
core   +3 more sources

Radiolysis and Fe‐Biotite Alteration: Questioning the Origin of H2‐Bearing Fluid Inclusions in the Yorke Peninsula Granites, South Australia

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Multiple drillings in the Yorke Peninsula, South Australia, recently confirmed the presence of natural hydrogen (H2) in shallow sedimentary units. While radiolysis and Fe‐oxidation in the basement are potential generation mechanisms, their respective contributions remain unconstrained.
Ugo Geymond   +15 more
wiley   +1 more source

Synthesis and characterization of Cu-BaTiO3 nanocomposite for atrazine remediation under visible-light radiation from wastewater

open access: yesJournal of Materials Research and Technology, 2020
The most herbicide used in agriculture in many regions is atrazine, which leads to many worries as reported by its toxicity. In this, we have synthesized BaTiO3 nanoparticles through a simple method, its absorption was converted from UV region to visible
A.S. Basaleh, R.M. Mohamed
doaj   +1 more source

Britholite-(Ce) from the metaluminous granite of SW Egypt

open access: yesMineralogia, 2023
Optical microscopy and scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS) analyses were used to characterize britholite-(Ce) of the metaluminous granite (Proterozoic) intruded into the Nubian Formation in southwestern Egypt and ...
Hassan Kamaleldin M.
doaj   +1 more source

Proveniência da Titanite no Algarve (Sul de Portugal) [PDF]

open access: yes, 2014
Com o objectivo de avaliar a proveniência da titanite existente nas praias e ribeiras do Algarve e avaliar o seu potencial para estudos de proveniência, foram estudadas diversas amostras recolhidas em afloramentos rochosos e em sedimentos detríticos de ...
Fernandes, Paulo   +3 more
core  

Hornblendite in the Lower Crust: A Possible Source for Porphyry Cu Deposits

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Lower crustal sulfide‐bearing Cu‐rich cumulates, mainly occurring as hornblendite, have been proposed as a critical source component for the development of giant porphyry Cu deposits (PCDs); however, their mineralogical and geochemical nature remain elusive.
Guangxu Li   +5 more
wiley   +1 more source

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