Article
Materials Science, Multidisciplinary
A. N. Afanasiev, A. A. Greshnov, D. Svintsov
Summary: The study reveals that massless chiral fermions in inversion symmetry-breaking Weyl semimetals exhibit strongly anisotropic dispersion and the electromagnetic modes of Weyl plasmas in realistic band structures show unique characteristics such as the emergence of acoustic plasmons and weak damping along specific crystal directions. Additionally, acoustic plasmons can lead to slow beatings of electric potential superimposed on fast plasmonic oscillations during charge relaxation, potentially stimulating electronic superconductivity and other phenomena.
Review
Chemistry, Analytical
Jing Hu, Chenghui Li, Yafei Zhen, Hanjiao Chen, Juan He, Xiandeng Hou
Summary: This review article discusses the importance of chemical vapor generation as a sample introduction method in analytical atomic spectrometry over the past 50 years. It covers the historical background, recent advances, and future research directions of CVG in various media, providing insights for the development of this technique.
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2022)
Article
Optics
Lu Wang, Jeremy Lim, Liang Jie Wong
Summary: It is shown that three-dimensional Dirac semimetals, especially Cd3As2 (Cd3As2), exhibit extremely high conversion efficiency in optical-to-terahertz conversion, exceeding typical materials such as LiNbO3 (LiNbO3) by more than 5000 times over nanoscale propagation distances. By tuning the Fermi energy, a step-like increase in efficiency can be achieved in the conversion process. This research indicates the potential for developing ultrathin-film terahertz sources for compact terahertz technologies.
LASER & PHOTONICS REVIEWS
(2022)
Article
Nanoscience & Nanotechnology
Heguang Liu, Decai Ouyang, Jing Wang, Chao Lei, Wenwu Shi, Todd Gilliam, Jianxi Liu, Yuan Li, Nitin Chopra
Summary: This study investigates the CVD growth of graphene-encapsulated Au nanoparticles (Au PG) through experimental parameter studies and theoretical modeling to understand the growth mechanism and control the morphology evolution. Optimized conditions for the best morphology evolution are identified, providing new insights for the design and application of such core-shell heterostructures in plasmonic applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Analytical
Linda Sagapova, Stanislav Musil, Barbora Kodrikova, Milan Svoboda, Jan Kratzer
Summary: By studying the effect of modifiers, it was found that the Cr3+/KCn and Ti4+/KCn environments exhibited higher CVG efficiency and sensitivity, while the Co2+/ascorbic acid/thiourea environment showed lower efficiency.
ANALYTICA CHIMICA ACTA
(2021)
Article
Physics, Multidisciplinary
Wen-Yu He, Xiao Yan Xu, K. T. Law
Summary: Kramers-Weyl semimetals, with a chiral crystal structure, exhibit a strong longitudinal magnetoelectric response, making them potential candidates for magnetic switching in ferromagnetic systems. This unique material property arises from the chiral lattice symmetry, allowing for new designs of spin-orbit torque devices with electric control of magnetization switching.
COMMUNICATIONS PHYSICS
(2021)
Article
Materials Science, Multidisciplinary
Chong Wang, Alexander Hickey, Xuzhe Ying, A. A. Burkov
Summary: Luttinger's theorem connects the number of electrons per unit cell of a metallic crystalline material with the volume enclosed by its Fermi surface, providing a unified framework for studying ordinary metals and topological (semi)metals. The emergent charge conservation symmetry at each point on the Fermi surface, based on the 't Hooft anomaly, plays a crucial role in determining the anomalous behavior of different materials. This framework leads to generalized chiral or parity anomalies depending on the Fermi surface codimension, resulting in various topological responses related to Fermi surface volume.
Article
Materials Science, Multidisciplinary
F. Bonasera, S. -B. Zhang, L. Privitera, F. M. D. Pellegrino
Summary: In this study, we investigate the interface states between two regions of a nodal line semimetal under the illumination of light with opposite circular polarizations. We find that the polarized light can significantly modify the energy structure, possibly generating Van Hove singularities. Furthermore, with the addition of delta doping of magnetic impurities, a switchable and topologically nontrivial, vortexlike pseudospin pattern of the interface states is observed.
Article
Engineering, Chemical
Miao Song, Yafeng Yang, Maoqiao Xiang, Qingshan Zhu, Hongdan Zhao
Summary: The conventional CVD process to fabricate high quality TiC powders faces challenges due to the low conversion rate of TiCl4. To address this issue, TiCl3 was proposed as a precursor and a fluidized bed reactor was utilized to enhance homogeneous nucleation, resulting in the successful fabrication of high purity nanosized TiC powders.
Article
Materials Science, Multidisciplinary
Minji Kang, Jaegab Lee, Woong Choi
Summary: The study demonstrates that the in situ growth of MoOxSy particles in MoS2 thin films can achieve electron doping, enhancing the electrical properties of MoS2 thin films for device fabrication.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Physics, Multidisciplinary
Juan Manuel Rossello, Claus-Dieter Ohl
Summary: By pulsed laser irradiation with a collimated beam, temporally and spatially controlled nucleation of bulk nanobubbles in water was successfully demonstrated. This technique shows potential for testing theories on the existence of stable bulk nanobubbles.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Hui Yan, Tong Yu, Heng Li, Zhuocheng Li, Haitao Tang, Hangwei Hu, Hao Yu, Shougen Yin
Summary: In this study, large-area continuous MoSe2 films with different layers were successfully synthesized on SiO2/Si substrates using the APCVD method without the assistance of hydrogen by raising the reaction temperature of Se. The synthesized films exhibited good performance and high crystallinity, with the monolayer film reaching up to 3 mm. Further studies on the formation mechanism of the MoSe2 continuous film were proposed using theoretical models to understand the formation behaviors of the systems.
Article
Engineering, Electrical & Electronic
E. Barrera-Rendon, S. Obregon, V. Rodriguez-Gonzalez
Summary: This study demonstrates the simultaneous adsorption and photocatalytic reduction of Cr(VI) ions to Cr(III) ions by Cu2+ doped and CuS functionalized TiO2 framework. The results show that this method is highly effective in removing heavy metal ions.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2022)
Article
Chemistry, Physical
Kim-Hue T. Dinh, Huong T. Thuy Ta, Ngoc Linh Nguyen, Viet Thong Le, Viet Huong Nguyen, Hao Van Bui
Summary: Over the past 20 years, atomic layer deposition (ALD) of platinum (Pt) has achieved significant advancements in the fabrication of Pt nanostructures for various applications. ALD allows for precise control of Pt deposition at the atomic level and enables the fabrication of low-dimensional nanostructures. These ALD-fabricated Pt nanostructures not only provide excellent performance, but also maximize Pt usage efficiency. Understanding precursor chemistry, surface reactions, nucleation, growth mechanisms, and deposition conditions is crucial for achieving controllable Pt deposition. This article reviews the advances in Pt ALD and its potential applications, providing fundamental knowledge for achieving desired Pt nanostructures.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Tshiamo Manyepedza, James M. Courtney, Abigail Snowden, Christopher R. Jones, Neil V. Rees
Summary: In this study, nano-particulate MoS2 was explored as a hydrogen evolution reaction (HER) catalyst. The onset potential at pH 2 was found to be -0.10 V (vs RHE), which was confirmed to be due to HER. XPS and XRD analysis were used to categorize the materials and confirm their chemical composition and crystal structure. The early onset of HER was postulated to be due to the presence of nanoplatelets.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Spectroscopy
B. Campanella, A. Menciassi, M. Onor, C. Ferrari, E. Bramanti, A. D'Ulivo
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2016)
Editorial Material
Spectroscopy
Alessandro D'Ulivo, Stefano Legnaioli
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2017)
Editorial Material
Spectroscopy
Alessandro D'Ulivo
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2017)
Article
Chemistry, Analytical
Lucia D'Ulivo, Roberto Spiniello, Massimo Onor, Beatrice Campanella, Zoltan Mester, Alessandro D'Ulivo
ANALYTICA CHIMICA ACTA
(2018)
Review
Chemistry, Analytical
Enea Pagliano, Beatrice Campanella, Alessandro D'Ulivo, Zoltan Mester
ANALYTICA CHIMICA ACTA
(2018)
Article
Environmental Sciences
Beatrice Campanella, Alessandro D'Ulivo, Lisa Ghezzi, Massimo Onor, Riccardo Petrini, Emilia Bramanti
Article
Spectroscopy
Emanuela Pitzalis, Massimo Onor, Roberto Spiniello, Carlos Eduardo Mendes Braz, Alessandro D'Ulivo
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2018)
Article
Biochemical Research Methods
Lucia D'Ulivo, Enea Pagliano, Massimo Onor, Zoltan Mester, Alessandro D'Ulivo
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2019)
Article
Biochemical Research Methods
Enea Pagliano, Massimo Onor, Zoltan Mester, Alessandro D'Ulivo
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2020)
Article
Chemistry, Analytical
Emanuela Pitzalis, Beatrice Campanella, Rachele Bonini, Massimo Onor, Alessandro D'Ulivo
Summary: The mechanisms controlling the generation of PbH4 in the reaction of Pb(II) with NaBH4 were investigated, with and without the presence of K3Fe(CN)6. PbH4 was identified for the first time using gas chromatographic mass spectrometry. It was found that without the additive, Pb(II) is converted to solid species and no volatile lead species can be detected. In the presence of K3Fe(CN)6, PbH4 is formed by the direct transfer of hydride from borane to lead atoms.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Analytical
Michelle Buoso, Beatrice Campanella, Massimo Onor, Emanuela Pitzalis, Alessandro D'Ulivo
Summary: The use of BH intermediates as derivatization reagents significantly improves the tolerance to interference from transition metal ions in the generation of SbH3 and BiH3, and shows high tolerance in a wide range of acidity. The method has been successfully applied to the determination of Sb and Bi in complex samples, providing further understanding of the chemical behavior of borohydrides.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2024)
Correction
Chemistry, Analytical
Alessandro D'Ulivo
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2019)
Review
Chemistry, Analytical
Alessandro D'Ulivo
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2019)
Article
Chemistry, Analytical
Emanuela Pitzalis, Davide Angelini, Marco Carlo Mascherpa, Alessandro D'Ulivo
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2018)
Article
Spectroscopy
Piyali Deb Barman, Ashok Kumar Maurya, Subhendu Ghosh, Ankit Roy, Mukul Madaan
Summary: In X-ray spectroscopic studies, K beta 1,3 lines have been used to examine the chemical states of 3d transition metals, but are not suitable for characterizing iron oxides. Instead, FeL-lines, which involve the valence shell 3d electrons, were inspected and found to provide information on the chemical states of iron. The study established a linear relationship between the chemical shift of FeL beta 1 line and spin multiplicity, allowing for the speciation of iron.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2024)