Results 11 to 20 of about 1,629,582 (266)

Circular Dichroism Reflectance Anisotropy of Chiral Atomically Thin Films [PDF]

Chemosensors
Recently, a technical modification of a Reflectance Anisotropy Spectroscopy (RAS) spectrometer has been proposed to investigate the circular dichroism (CD) of samples instead of the normally studied linear dichroism. CD-RAS measures the anisotropy of the
Ilaria Tomei, Filippo Pierucci, Beatrice Bonanni, Anna Sgarlata, Massimo Fanfoni, Seong-Jun Yang, Cheol-Joo Kim, Claudio Goletti   +7 more
doaj   +2 more sources

Sensing strain-induced symmetry breaking by reflectance anisotropy spectroscopy [PDF]

Applied Physics Letters, 2021
Intentional breaking of the lattice symmetry in solids is a key concept to alter the properties of materials by modifying their electronic band structure. However, the correlation of strain-induced effects and breaking of the lattice symmetry is often indirect, resorting to vibrational spectroscopic techniques, such as Raman scattering.
M. Volpi, S. Beck, A. Hampel, H. Galinski, A. Sologubenko, R. Spolenak   +5 more
openaire   +2 more sources

Structure and Physical Properties of the LaBiFe2O6 Perovskite Produced by the Modified Pechini Method [PDF]

Materials Research, 2017
In this paper the synthesis of the LaBiFe2O6 material by the modified Pechini method is reported. Structural, morphologic, magnetic and optic experimental studies were performed.
Johny Andrés Jaramillo Palacio, Elixir William Barrera Bello, Julián Andrés Munévar Cagigas, Oscar Arnache, David A. Landínez-Téllez, Jairo Roa-Rojas   +5 more
doaj   +2 more sources

Porphycene Films Grown on Highly Oriented Pyrolytic Graphite: Unveiling Structure–Property Relationship through Combined Reflectance Anisotropy Spectroscopy and Atomic Force Microscopy Investigations

Proceedings, 2021
Thin organic films are widely used in sensors, solar cells, and optical devices due to their intense absorption in the visible/near-infrared (IR) region.
Marta Penconi, Lorenzo Ferraro, Jacek Waluk, Lamberto Duò, Franco Ciccacci, Alberto Bossi, Marcello Campione, Gianlorenzo Bussetti   +7 more
doaj   +1 more source

A research product for tropospheric NO₂ columns from Geostationary Environment Monitoring Spectrometer based on Peking University OMI NO₂ algorithm [PDF]

Atmospheric Measurement Techniques, 2023
Tropospheric vertical column densities (VCDs) of nitrogen dioxide (NO2) retrieved from sun-synchronous satellite instruments have provided abundant NO2 data for environmental studies, but such data are limited by retrieval uncertainties and insufficient ...
Y. Zhang, J. Lin, J. Kim, H. Lee, J. Park, H. Hong, M. Van Roozendael, F. Hendrick, T. Wang, T. Wang, P. Wang, P. Wang, Q. He, K. Qin, Y. Choi, Y. Kanaya, J. Xu, P. Xie, P. Xie, X. Tian, S. Zhang, S. Wang, S. Cheng, X. Cheng, J. Ma, T. Wagner, R. Spurr, L. Chen, H. Kong, M. Liu   +29 more
doaj   +1 more source

Reflectance anisotropy spectroscopy of strain-engineered GaAsBi alloys [PDF]

Applied Physics Letters, 2022
In this paper, we present results obtained by an optical technique, namely, reflectance anisotropy spectroscopy (RAS), applied to a series of GaAs1−xBix samples grown by molecular beam epitaxy (MBE) under different strain conditions with the increasing concentration of Bi, up to the higher value of about 7%.
C. Goletti, L. Fazi, E. Tisbi, B. Bonanni, E. Placidi, F. Arciprete   +5 more
openaire   +4 more sources

In Situ and Real-Time Monitoring of Doping Levels by Reflectance Anisotropy Spectroscopy (RAS) during Molecular Beam Epitaxial (MBE) Growth of III/V Semiconductors

Advances in Materials Science and Engineering, 2023
Reflectance anisotropy/difference spectroscopy (RAS/RDS) had been developed for monitoring epitaxial semiconductor growth, especially for the metal-organic chemical vapor deposition (MOCVD) of III/V semiconductors.
Henning Fouckhardt, Johannes Richter, Christoph Doering, Johannes Strassner   +3 more
doaj   +1 more source

Reactive Ion Etching (RIE) Induced Surface Roughness Precisely Monitored In-Situ and in Real Time by Reflectance Anisotropy Spectroscopy (RAS) in Combination with Principle Component Analysis (PCA)

Advances in Materials Science and Engineering, 2022
Reactive ion etching (RIE) of group IV or III/V semiconductors is an important step in many lithographic processes in semiconductor technology. Typically, surface roughness is undesired, but more and more applications arise where rough surfaces are used ...
Emerson Oliveira, Johannes Strassner, Christoph Doering, Henning Fouckhardt   +3 more
doaj   +1 more source

Experimental and Computational Aspects of Electrochemical Reflection Anisotropy Spectroscopy: A Review

ChemElectroChem, 2023
AbstractElectrode/electrolyte interfaces play a crucial role in many electrochemical energy conversion and storage technologies. Hence, a deep understanding of the interfacial structure, energetic alignment and processes is of high relevance and has triggered the development of a number of in situ and operando techniques.
Margot Guidat, Mario Löw, Moritz Kölbach, Jongmin Kim, Matthias M. May   +4 more
openaire   +4 more sources

Impact of Ga³⁺ Ions on the Structure, Magnetic, and Optical Features of Co-Ni Nanostructured Spinel Ferrite Microspheres

Nanomaterials, 2022
Co-Ni ferrite is one of the crucial materials for the electronic industry. A partial substitution with a rare-earth metal brings about modification in crystal lattice and broadens knowledge in the discovery of new magnetic material.
Munirah A. Almessiere, Yassine Slimani, Sadaqat Ali, Abdulhadi Baykal, Rabindran Jermy Balasamy, Sadik Guner, İsmail A. Auwal, Alex V. Trukhanov, Sergei V. Trukhanov, Ayyar Manikandan   +9 more
doaj   +1 more source