Results 21 to 30 of about 15,408,531 (299)

Structural Modification of Single-Layer Graphene Under Laser Irradiation Featured by Micro-Raman Spectroscopy

open access: yesNanoscale Research Letters, 2017
Confocal micro-Raman spectroscopy is used as a sensitive tool to study the nature of laser-induced defects in single-layer graphene. Appearance and drastic intensity increase of D- and D′ modes in the Raman spectra at high power of laser irradiation is ...
Yurii Stubrov   +4 more
doaj   +1 more source

D-Band Perfect Anomalous Reflectors for 6G Applications

open access: yesIEEE Access, 2021
We demonstrate anomalous reflectors at 140 GHz for the application of 6G communication coverage expansion. The reflectors are designed on cyclo-olefin polymer (COP) substrates on the basis of measured complex permittivity and conductivity at millimeter ...
Yuto Kato, Kohei Omori, Atsushi Sanada
doaj   +1 more source

Distinct topological properties in Ce monopnictides having correlated f electrons: CeN vs. CeBi

open access: yesPhysical Review Research, 2020
The hitherto-studied topological nature in Ce monopnictides (CePn) has been discussed based solely on their p-d band inversion, despite the existence of f electrons.
Dong-Choon Ryu   +5 more
doaj   +1 more source

University Concert Band, University Symphonic Band, November 13, 1980

open access: yes, 2019
Recorded during a live performance at Miller Auditorium, Western Michigan University, Kalamazoo, Michigan on November 13, 1980, 8:00 p.m., program no.
Western Michigan University. Concert Band
core   +2 more sources

Manganese(II) Bromide Compound with Diprotonated 1-Hydroxy-2-(pyridin-2-yl)-4,5,6,7-tetrahydrobenzimidazole: Dual Emission and the Effect of Proton Transfers

open access: yesInorganics, 2022
An organic–inorganic cation–anion manganese(II) tetrabromide compound with diprotonated 1-hydroxy-2-(pyridin-2-yl)-4,5,6,7-tetrahydrobenzimidazole, [H3L][MnBr4][H2O], has been synthesized and investigated.
Alexey S. Berezin   +4 more
doaj   +1 more source

A Raman spectroscopic investigation of graphite oxide derived graphene

open access: yesAIP Advances, 2012
Graphene sheets that are now routinely obtained by the exfoliation/reduction of graphite oxide exhibit Raman spectra unlike traditional graphene systems.
Adarsh Kaniyoor, Sundara Ramaprabhu
doaj   +1 more source

University Concert Band, University Symphonic Band, February 17, 1980

open access: yes, 2018
Recorded during a live performance at Miller Auditorium, Western Michigan University, Kalamazoo, Michigan, February 17, 1980, program no. 205 of the Department of Music's 1979-1980 season.University Concert Band, Gregory Talford, conductor (1st-4th works)
Western Michigan University. Concert Band
core   +2 more sources

Raman spectroscopy investigations of chemically derived zigzag edge graphene nanoribbons

open access: yesAIP Advances, 2013
We fabricated graphene nanoribbons (GNRs) chemically derived from expandable graphite. All GNRs exhibit atomically smooth edges that extended over their entire length. We investigated four of the fabricated GNRs using Raman spectroscopy.
R. Nishinakagawa   +4 more
doaj   +1 more source

DFT study on ORR catalyzed by bimetallic Pt-skin metals over substrates of Ir, Pd and Au

open access: yesNano Materials Science, 2023
Bimetallic Pt-skin catalyst is a class of near-surface alloy (NSA) that owns a high degree of control over composition. Herein, density functional theory (DFT) is used to calculate the energetics of oxygen reduction reaction (ORR) on Pt-skin over Ir, Pd ...
Xueqiang Qi   +3 more
doaj   +1 more source

The Origin of Raman D Band: Bonding and Antibonding Orbitals in Graphene

open access: yesCrystals, 2013
In Raman spectroscopy of graphite and graphene, the D band at ∼ 1355 cm−1 is used as the indication of the dirtiness of a sample. However, our analysis suggests that the physics behind the D band is closely related to a very clear idea for describing a ...
Tetsuomi Sogawa   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy