Article
Physics, Multidisciplinary
Can B. Uzundal, Sasawat Jamnuch, Emma Berger, Clarisse Woodahl, Paul Manset, Yasuyuki Hirata, Toshihide Sumi, Angelique Amado, Hisazumi Akai, Yuya Kubota, Shigeki Owada, Kensuke Tono, Makina Yabashi, John W. Freeland, Craig P. Schwartz, Walter S. Drisdell, Iwao Matsuda, Tod A. Pascal, Alfred Zong, Michael Zuerch
Summary: Second harmonic generation (SHG) spectroscopy is commonly used to investigate surface chemistry, interfacial chemistry, and symmetry properties in solids, but the complexity of novel materials makes interpretation of experiments difficult. Polarization-resolved extreme ultraviolet (XUV-SHG) spectroscopy demonstrates element-specific angular anisotropy investigations for the first time, paving the way for future angle and time-resolved XUV-SHG studies with elemental specificity in condensed matter systems.
PHYSICAL REVIEW LETTERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Corrado di Nicola, Effendy, Robert D. Hart, Fabio Marchetti, Claudio Pettinari, Riccardo Pettinari, Brian W. Skelton, Allan H. White
Summary: This study focused on the crystallization of adducts of simple copper(I) and silver(I) salts with triphenylphosphine under specific solvent conditions, resulting in different coordination environments and stoichiometries of the formed complexes. Single crystal X-ray structure determinations were used for characterization of the complexes with different metal atoms and ligands.
INORGANICA CHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Evgeniy Chistyakov, Pavel Yudaev, Yulia Nelyubina
Summary: The synthesized compound was characterized using NMR spectroscopy and mass spectrometry, and the crystal structure was determined by X-ray diffraction study.
Article
Biochemistry & Molecular Biology
Ye Guan, Jennifer Londono-Salazar, Zheng Pei, Douglas R. Powell, Yihan Shao, George B. Richter-Addo
Summary: This study reports the crystal structures of N-hydroxyamphetamine in complex with heme models and reveals the presence of internal H-bond interaction. Through computational analysis, it is demonstrated that the conformations with the internal H-bond represent global minima. Additionally, the study reveals the contribution of internal H-bond to the heme-AmphNHOH interaction energy.
JOURNAL OF INORGANIC BIOCHEMISTRY
(2022)
Article
Chemistry, Inorganic & Nuclear
Seham K. Abdel-Aal, A. Ouasri
Summary: In this study, the crystal structures and vibrational modes of the organic-inorganic hybrid perovskite compounds were investigated, revealing the structural characteristics and the importance of hydrogen bonding contacts in C5MnCl and C6MnCl.
JOURNAL OF SOLID STATE CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Pamella Vasconcelos Borges Pinho, Alain Chartier, Frederic Miserque, Denis Menut, Jean-Baptiste Moussy
Summary: The influence of epitaxial strain on the electronic structure of alpha-Cr2O3(0001) thin films is investigated through X-ray photoemission spectroscopy and crystal field multiplet calculations. In-plane lattice strain distorts the CrO6 octahedron and splits the 3d orbital triplet t(2g) into a(1) + e orbitals. Understanding these crystal field variations is crucial for tuning the physical properties of alpha-Cr2O3 thin films.
MATERIALS RESEARCH LETTERS
(2021)
Article
Chemistry, Inorganic & Nuclear
Lucia Amidani, Marius Retegan, Anna Volkova, Karin Popa, Philippe M. Martin, Kristina O. Kvashnina
Summary: This study conducted a detailed investigation of hexavalent uranium in various local configurations using high-energy-resolution fluorescence-detected X-ray absorption near-edge structure at the U M-4 edge. The findings revealed the nature of spectral features and indicated that the main peak corresponds to nonbonding 5f orbitals, while the highest energy peak corresponds to antibonding 5f orbitals. This research aligns with the accepted interpretation of uranyl spectral features and provides a broader perspective for interpreting the spectra of U6+-containing samples based on a common theoretical foundation.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Georgi Popov, Goran Bacic, Charlotte Van Dijck, Laura S. Junkers, Alexander Weiss, Miika Mattinen, Anton Vihervaara, Mykhailo Chundak, Pasi Jalkanen, Kenichiro Mizohata, Markku Leskela, Jason D. Masuda, Sean T. Barry, Mikko Ritala, Marianna Kemell
Summary: Atomic layer deposition (ALD) offers excellent film uniformity and conformality for the deposition of mixed-halide perovskite films. However, ALD is only capable of depositing iodine-based halide perovskites and lacks processes for other halides. In this study, six new low temperature ALD processes for PbCl2 and PbBr2 deposition are described, which are crucial steps for depositing mixed-halide perovskites with ALD.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Applied
Lin Yan, Kui Hu, Xu-Feng Liu, Yu-Long Li, Xing-Hai Liu, Zhong-Qing Jiang
Summary: Four diiron ethane-1,2-dithiolate complexes containing 1,2,3-thiadiazole moiety were successfully synthesized and characterized. The complexes exhibited catalytic activity in reducing protons to H-2 and the hydroxy group possibly played a significant role in their fungicidal activity, as revealed by the electrochemical and fungicidal activity studies.
APPLIED ORGANOMETALLIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
P. Armand, D. Granier, C. Reibel, M. Tillard
Summary: In this study, two triple molybdates were obtained using high-temperature flux technique, and their properties were investigated through X-ray diffraction, Raman spectroscopy, and magnetic measurements. The crystal structures of Er-based and Tm-based triple molybdates were characterized and showed distinct lattice dimensions. The magnetic susceptibility measurements indicated that both compounds exhibit an antiferromagnetic behavior.
SOLID STATE SCIENCES
(2022)
Article
Materials Science, Multidisciplinary
Hashara Kandambige, Juan Bai, Jun Mei, Dongchen Qi, Ting Liao, Ziqi Sun
Summary: The loading of active noble-metal nanoparticles onto two-dimensional metal oxide supporters can improve catalytic performance through stable interfacial binding and reduced charge transfer distance. This study proposes a controllable self-assembly approach for synthesizing three types of 2D vanadium oxide supporters. The experimental results show that the 2D geometry has the optimal effect on catalytic kinetics, mainly due to the strongest Ir-V-O interaction at the particle-support interfaces. This work provides new insights into particle-support interaction mechanisms and offers a possible solution for optimizing electrocatalytic kinetics by adjusting the geometry of the supporter.
ACS MATERIALS LETTERS
(2023)
Article
Physics, Multidisciplinary
Margaret R. McCarter, Kook Tae Kim, Vladimir A. Stoica, Sujit Das, Christoph Klewe, Elizabeth P. Donoway, David M. Burn, Padraic Shafer, Fanny Rodolakis, Mauro A. P. Goncalves, Fernando Gomez-Ortiz, Jorge Iniguez, Pablo Garcia-Fernandez, Javier Junquera, Stephen W. Lovesey, Gerrit van der Laan, Se Young Park, John W. Freeland, Lane W. Martin, Dong Ryeol Lee, Ramamoorthy Ramesh
Summary: An escalating challenge in condensed-matter research is the characterization of emergent order parameter nanostructures. Resonant elastic x-ray scattering (REXS) has emerged as a technique to study chirality in spin textures, but its application in ferroelectrics is limited. This study presents a framework for modeling REXS from an arbitrary arrangement of charge quadrupole moments and demonstrates its ability to probe the structure and chirality of polar skyrmions.
PHYSICAL REVIEW LETTERS
(2022)
Review
Chemistry, Physical
Benjamin Rotonnelli, Marie-Sophie Dias Fernandes, Fabrice Bournel, Jean-Jacques Gallet, Benedikt Lassalle-Kaiser
Summary: Water electrolysis for hydrogen production provides a convenient and carbon-free option to regulate the intermittency of renewable energy sources. Efficient catalysts based on noble metals are currently used for large-scale production, but efforts are being made to reduce catalyst usage while maintaining their efficiency. Fundamental studies on catalyst structure, reaction intermediates, and failure modes support these efforts. Synchrotron-based techniques, such as X-ray photoelectron and X-ray absorption spectroscopies, can provide valuable information during the reaction. This article gives an overview of these techniques and their application to water electrolysis.
CURRENT OPINION IN ELECTROCHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
James M. Williams, Mikaela M. Pyrch, Daniel K. Unruh, Haley Lightfoot, Tori Z. Forbes
Summary: Uranyl selenate compounds exhibit diverse structural arrangements and vibrational signals, with structural features linked to the hydrogen bonding network associated with heterocycles and selenate anions. The vibrational spectra of these compounds are complex, showing variations in bands associated with the uranyl cation, selenate anion, and heteroatoms.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
A. Subashini, V. Veeramani, K. Thamaraiselvi, Aurelien Crochet, Priya Rose, Reji Philip, R. Ramesh Babu, K. Ramamurthi
Summary: Benzylideneaniline compounds BBFA and BBMOA were synthesized and characterized in terms of crystal structure, functional groups, thermal properties, optical performance, and biological activities through various experiments in this study.
Article
Physics, Multidisciplinary
Leonardo Martinelli, Davide Betto, Kurt Kummer, Riccardo Arpaia, Lucio Braicovich, Daniele Di Castro, Nicholas B. Brookes, Marco Moretti Sala, Giacomo Ghiringhelli
Summary: Resonant inelastic x-ray scattering (RIXS) was used to investigate the magnetic dynamics of infinite-layer cuprate CaCuO2. It was found that the single magnon decays into a broad continuum of excitations, with the spin-flip character dominating. This continuum is proposed to originate from the decay of the magnon into spinon pairs, related to the high ring exchange J(c) of CaCuO2.
Article
Physics, Multidisciplinary
Matteo Rossi, Motoki Osada, Jaewon Choi, Stefano Agrestini, Daniel Jost, Yonghun Lee, Haiyu Lu, Bai Yang Wang, Kyuho Lee, Abhishek Nag, Yi-De Chuang, Cheng-Tai Kuo, Sang-Jun Lee, Brian Moritz, Thomas P. Devereaux, Zhi-Xun Shen, Jun-Sik Lee, Ke-Jin Zhou, Harold Y. Hwang, Wei-Sheng Lee
Summary: A charge ordering state has been observed in nickelate superconductors, which is distinct from other observed ordered states. The results suggest that strong electronic correlations may be responsible for this ordered state, and the interplay between charge order, antiferromagnetic fluctuations, and superconductivity is an important topic in nickel-based superconductors.
Article
Multidisciplinary Sciences
Peihao Sun, Giulio Monaco, Peter Zalden, Klaus Sokolowski-Tinten, Jerzy Antonowicz, Ryszard Sobierajski, Yukio Kajihara, Alfred Q. R. Baron, Paul Fuoss, Andrew Chihpin Chuang, Jun-Sang Park, Jonathan Almer, J. B. Hastings
Summary: Liquid polymorphism is an interesting phenomenon observed in some single-component systems. By studying supercooled liquid Te, this research observes clear maxima in its thermodynamic response functions around a specific temperature, suggesting the possible existence of liquid polymorphism. The underlying structural evolution reveals the development of intermediate-range order, particularly around the temperature of the thermodynamic maxima, which is attributed to bond-orientational ordering. The similarities with water indicate that water-like anomalies may be a common phenomenon in liquid systems with competing bond-and density-ordering.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Multidisciplinary Sciences
Francesco Dallari, Alessandro Martinelli, Federico Caporaletti, Michael Sprung, Giacomo Baldi, Giulio Monaco
Summary: The X-ray-induced fluidization of SiO2 glass was studied using X-ray photon correlation spectroscopy. Atomic displacements reaching a few nanometers below the glass transition temperature were observed after the absorption of X-rays. At absorbed doses typical of X-ray-based experiments, the atomic displacements showed a hyperdiffusive behavior and followed a heavy-tailed Levy stable distribution. This behavior is attributed to the generation of X-ray-induced point defects, which create a dynamically fluctuating potential landscape and provide a microscopic understanding of the fluidization process.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Acoustics
L. Foglia, R. Mincigrucci, A. A. Maznev, G. Baldi, F. Capotondi, F. Caporaletti, R. Comin, D. De Angelis, R. A. Duncan, D. Fainozzi, G. Kurdi, J. Li, A. Martinelli, C. Masciovecchio, G. Monaco, A. Milloch, K. A. Nelson, C. A. Occhialini, M. Pancaldi, E. Pedersoli, J. S. Pelli-Cresi, A. Simoncig, F. Travasso, B. Wehinger, M. Zanatta, F. Bencivenga
Summary: Collective lattice dynamics play a critical role in determining the properties of condensed matter. The extreme ultraviolet transient grating (EUV TG) approach allows access to a previously inaccessible length-scale, providing valuable insights into the thermoelastic properties of matter. This technique has significant implications for fundamental physics and future technology development.
Article
Multidisciplinary Sciences
Jian-Rui Soh, Alessandro Bombardi, Frederic Mila, Marein C. Rahn, Dharmalingam Prabhakaran, Sonia Francoual, Henrik M. Ronow, Andrew T. Boothroyd
Summary: Resonant elastic X-Ray scattering on EuIn2As2 reveals that the magnetic order in this material satisfies the symmetry requirements for it to be an axion insulator. This finding is significant and may contribute to a better understanding of the physical properties of magnetic topological insulators.
NATURE COMMUNICATIONS
(2023)
Article
Physics, Multidisciplinary
M. Magnaterra, M. Moretti Sala, G. Monaco, P. Becker, M. Hermanns, P. Warzanowski, T. Lorenz, D. I. Khomskii, P. H. M. van Loosdrecht, J. van den Brink, M. Grueninger
Summary: Motivated by claims of spin-orbit-driven spin-liquid physics, this study investigates hexagonal Ba3Ti3-xIrxO9 hosting Ir2O9 dimers using resonant inelastic x-ray scattering (RIXS) at the Ir L3 edge. The results show an unconventional realization of strong disorder in the magnetism of Ba3Ti3-xIrxO9, where cation disorder affects the local moments. RIXS interferometry reveals coexistence of quasimolecular singlet states and spin-orbit-entangled j = 1/2 moments, highlighting the role of cation disorder in suppressing long-range magnetic order in these compounds.
PHYSICAL REVIEW RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
Siobhan M. Tobin, Jian-Rui Soh, Hao Su, Andrea Piovano, Anne Stunault, J. Alberto Rodriguez-Velamazan, Yanfeng Guo, Andrew T. Boothroyd
Summary: We conducted neutron scattering measurements on YbMnSb2 to investigate the magnetic moments and their interaction with Dirac fermions. Our results revealed that the magnetic moments are localized on the Mn atoms in the paramagnetic phase, and the interlayer exchange in YbMnSb2 is significantly larger than in similar compounds with Bi instead of Sb. We argue that the coupling between the Mn local magnetic moments and the topological band states is more significant in YbMnSb2 compared to the Bi compounds.
Article
Physics, Multidisciplinary
Q. Faure, C. D. Dashwood, C. V. Colin, R. D. Johnson, E. Ressouche, G. B. G. Stenning, J. Spratt, D. F. McMorrow, R. S. Perry
Summary: We present a comprehensive experimental investigation of the magnetic structure in Ca(3)Ru(2)O7, revealing its phase diagram and spin reorientation transition. The results show that the magnetic moments form a cycloid in the a-b plane with a propagation wave vector of (8, 0, 1) and an ordered moment of about 1 mu B at temperatures between 46.7 K and 49.0 K. The applied magnetic field causes the eccentricity of the cycloid and the wave vector to increase, suggesting an enhancement of the antisymmetric Dzyaloshinskii-Moriya interaction through magnetostriction effects. The phase diagram shows the expansion of the cycloid phase with increasing field before transitioning to a polarized paramagnetic state at 5 T.
PHYSICAL REVIEW RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
E. Alfinelli, F. Caporaletti, F. Dallari, A. Martinelli, G. Monaco, B. Ruta, M. Sprung, M. Zanatta, G. Baldi
Summary: The atomic displacements induced by a low energy x-ray beam in pure boron oxide and sodium silicate glasses were studied using x-ray photon correlation spectroscopy. The initial glass was completely transformed into a new amorphous state under the beam, which remained stable. The restructuring of the new phase showed exponential relaxation similar to macroscopic measurements in the high-temperature supercooled liquid, suggesting a higher energy minimum. The observed dynamics had a temperature dependence, indicating thermal activation of defect creation.
Article
Multidisciplinary Sciences
Riccardo Arpaia, Leonardo Martinelli, Marco Moretti Sala, Sergio Caprara, Abhishek Nag, Nicholas B. Brookes, Pietro Camisa, Qizhi Li, Qiang Gao, Xingjiang Zhou, Mirian Garcia-Fernandez, Ke-Jin Zhou, Enrico Schierle, Thilo Bauch, Ying Ying Peng, Carlo Di Castro, Marco Grilli, Floriana Lombardi, Lucio Braicovich, Giacomo Ghiringhelli
Summary: Charge density fluctuations are found to be associated with the quantum critical point of the strange metal phase, strengthening the role of charge order and providing insights into high-temperature superconductivity.
NATURE COMMUNICATIONS
(2023)
Proceedings Paper
Engineering, Manufacturing
Seunguk Cha, Matteo Rossi, Bonwang Koo, Kwanghyun Jin, Vivek Jain
Summary: It was found that differences in the temperature profile during the cooling phase between two photoresist track tools affected the structural properties of the deposited film, leading to an increase in defects related to Critical Dimension (CD) variation in one of the tools downstream.
2022 33RD ANNUAL SEMI ADVANCED SEMICONDUCTOR MANUFACTURING CONFERENCE (ASMC)
(2022)
Article
Materials Science, Multidisciplinary
G. Pintori, G. Baldi, F. Dallari, A. Martinelli, M. Sprung, G. Monaco
Summary: This study investigates the atomic dynamics induced by hard x-rays in oxide glasses using X-ray photon correlation spectroscopy. The research finds that the product of the x-ray dose rate per atom and the decay time of the density correlation function is a sample-dependent parameter sensitive to the network connectivity of the glass, providing bonding information even in cases where the material is perturbed by x-rays.
Article
Materials Science, Multidisciplinary
Yingying Peng, Leonardo Martinelli, Qizhi Li, Matteo Rossi, Matteo Mitrano, Riccardo Arpaia, Marco Moretti Sala, Qiang Gao, Xuefei Guo, Gabriella Maria De Luca, Andrew Walters, Abhishek Nag, Andi Barbour, Genda Gu, Jonathan Pelliciari, Nicholas B. Brookes, Peter Abbamonte, Marco Salluzzo, Xingjiang Zhou, Ke-Jin Zhou, Valentina Bisogni, Lucio Braicovich, Steven Johnston, Giacomo Ghiringhelli
Summary: This study investigates the electron-phonon coupling in high-Tc superconducting cuprates using resonant inelastic x-ray scattering. By comparing the results from two cuprate families at different doping levels, it is found that the EPC strength decreases with doping and shows a nonmonotonic trend at smaller momenta, which is attributed to the screening effect of charge carriers.
Article
Materials Science, Multidisciplinary
Vamshi M. Katukuri, Xingye Lu, D. E. McNally, Marcus Dantz, Vladimir N. Strocov, M. Moretti Sala, M. H. Upton, J. Terzic, G. Cao, Oleg Yazyev, Thorsten Schmitt
Summary: This study investigates the electronic structure of Ba5AlIr2O11 using both computational and experimental methods. The results reveal that the Ir ions in the Ir2O9 dimer unit in this compound maintain their local J(eff) character close to 1/2 and 0, contrary to expectations. The local point group symmetry at each Ir ion plays an important role in limiting the direct d-d hybridization.
