Article
Chemistry, Multidisciplinary
Yangbin Fu, Hui Wei, Lei Wei, Huadi Zhang, Xuping Wang, Bing Liu, Yuanyuan Zhang, Xianshun Lv, Jixue Zhou, Huajian Yu
Summary: This study reveals the reasons for the thermal conductivity differences between LiNbO3 and LiTaO3 through first-principles calculations: significant contributions from optical phonon branches in the high-frequency range, and anisotropic phonon velocities in the low-frequency range leading to different thermal conductivities; moreover, longer phonon relaxation times and fewer scattering channels in LiTaO3 are identified as key factors for its higher thermal conductivity compared to LiNbO3.
Article
Chemistry, Inorganic & Nuclear
Wenhao Liu, Pifu Gong, Weiqi Huang, Mengran Sun, Sangen Zhao, Zheshuai Lin, Jiyong Yao
Summary: The mixed alkali metal and alkaline earth metal scandium borate, RbBaScB6O12, was successfully obtained via spontaneous crystallization. This material has a UV cutoff edge of less than 200 nm and a significant experimental birefringence of 0.139 @ 550 nm, making it a promising candidate for birefringence applications in the UV region.
INORGANIC CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Limin Wan, Wenbo Luo, Ye Yuan, Kaisheng Zhang, Shitian Huang, Shijun Qiao, Xinqiang Pan, Yao Shuai, Wanli Zhang, Chuangui Wu
Summary: The study systematically investigates the impact of helium implantation fluence on Crystal-Ion-Slicing fabrication of Y-cut LiNbO3 films. Different fluences affect lattice damage, tensile strain, roughness, blistering threshold, and activation energy for blistering. The experimental results contribute to achieving high-quality layers, particularly highly anisotropic ones, through CIS techniques.
Article
Multidisciplinary Sciences
Raouf Barboza, Stefano Marni, Fabrizio Ciciulla, Farooq Ali Mir, Giovanni Nava, Federico Caimi, Annamaria Zaltron, Noel A. Clark, Tommaso Bellini, Liana Lucchetti
Summary: In this study, we investigated the electrostatic behavior of ferroelectric liquid droplets on a lithium niobate ferroelectric crystal substrate. The droplets exhibit explosive emission of fluid jets upon entering the ferroelectric phase, mostly at the interface, which eventually form secondary droplets.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Review
Chemistry, Multidisciplinary
Lin Zhu, Liang Fu, Kexin Zhou, Lixuan Yang, Zhi Tang, Dan Sun, Yougen Tang, Yixin Li, Haiyan Wang
Summary: This article introduces the importance of engineering crystal orientation to improve the performance of cathode materials for LIBs, and summarizes the techniques for characterizing crystal surface features and identification methods. The article further discusses optimization strategies for different crystal structure cathodes and analyzes the relationship between exposure of special crystal facets and lithium storage performance.
Article
Geochemistry & Geophysics
Eril Suhada Lanin, Hiroki Sone, Zheng Yu, Qitong Liu, Bu Wang
Summary: The study compares the elastic properties of biotites recovered by spherical nanoindentation with those predicted from density functional theory (DFT) simulations. Most of the nanoindentation modulus results are below the values inferred from the simulation results representing ideal defect-free minerals. Crystal defects, potentially ripplocations, are suggested to be the dominant cause of the lower indentation modulus recovered from nanoindentation compared to those inferred from DFT simulations.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Chemistry, Physical
Rui Xia, Kangning Zhao, Liang-Yin Kuo, Lei Zhang, Daniel M. Cunha, Yang Wang, Sizhao Huang, Jie Zheng, Bernard Boukamp, Payam Kaghazchi, Congli Sun, Johan E. ten Elshof, Mark Huijben
Summary: The study introduces nickel niobate NiNb2O6 as a new high-rate anode material for lithium-ion batteries, demonstrating high capacity and stability with a high diffusion coefficient. The material shows minimal volume change during lithiation, leading to stable reversible lithiation process and promising energy storage performance in practical battery devices.
ADVANCED ENERGY MATERIALS
(2022)
Article
Electrochemistry
Yifan Zhang, Laifu Yang, Wenqiang Wang, Gengchao Wang
Summary: The coaxial heterostructure of LiNbO3 and NCNT was successfully achieved through in-situ nitrogen-doping and hydrothermal deposition, significantly enhancing the pseudocapacitive behavior of LiNbO3 and improving the cycle stability and capacity retention rate of the device.
ELECTROCHIMICA ACTA
(2022)
Article
Materials Science, Multidisciplinary
Dingwei Chen, Sohail Muhammad, Wenyi Huang, Xiang Zheng, Guangjun Wen, Yongjun Huang
Summary: This paper investigates the influence of nanofabrication error issues on lithium-niobate-based photonic crystal (PhC) opto-mechanical cavity. The study includes detailed simulations and optimizations considering material dispersion and inclination angle of PhC air hole. The effects of structural parameters on PhC band gap, line defected waveguide transmission characteristics, optical resonant wavelength, and mechanical resonant frequency are discussed. The paper also explores the impact of simulation methods on PhC band gap and calculates the opto-mechanical coupling rate of the lithium-niobate-based PhC optomechanical cavity structure. The obtained results can assist researchers in accurately designing optomechanical cavities for specific applications.
RESULTS IN PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Haili Ma, Yicun Yao, Liqiang Zhang, Minghong Wang, Chenglin Bai, Yuechen Jia, Nan-Kuang Chen
Summary: Waveguides fabricated in crystals using techniques like ion implantation, femtosecond laser inscription, and proton exchange have limited potential development due to their low refractive index contrast with the crystal substrate. This study presents a new fabrication strategy for waveguide multi-mode interferometers based on low-effective-index mode interference. The design utilizes trench-cladded ridge crystal waveguides with tiny index contrast in the vertical direction to support high-order modes with lower effective refractive index. Compact waveguide multi-mode interferometers are realized using simple trench-cladded tapered waveguide configurations. The interferometers are compact, easy to modulate, and have low insertion loss. The research also demonstrates refractive index sensing with high sensitivity for aqueous solutions, providing new possibilities for compact waveguide refractometers.
OPTICAL MATERIALS EXPRESS
(2023)
Article
Engineering, Mechanical
Jun Jin, Ningdong Hu, Hongping Hu
Summary: In this study, the size-dependent band structure of a phononic crystal (PnC) was investigated using nonlocal strain gradient theory (NSGT). Numerical simulations showed that as the lattice constant approached the nano-scale, the size effect became more significant and resulted in a narrower band gap. It was also found that the strength of the size effect was mainly influenced by the thickness of the minimum connector.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Acoustics
Nur M. M. Kalimullah, Kaushik Shukla, Amit Shelke, Anowarul Habib
Summary: This research proposes a material characterization method based on the propagation of acoustic waves to characterize anisotropic crystals. The crystal's anisotropic constitutive properties are estimated using an experimental technique and an inversion algorithm based on Bayesian filtering. The results demonstrate that the proposed inversion algorithm is efficient and robust, performing well even with significant measurement uncertainties.
Article
Optics
Jiaxin Zhang, Bincheng Pan, Weixi Liu, Daoxin Dai, Yaocheng Shi
Summary: Researchers have designed a photonic crystal nanobeam cavity on an etchless LiNbO3-On-Insulator platform, utilizing photonic bound states in the continuum to achieve a high Q factor. This opens up possibilities for manufacturing high-efficiency electro-optic modulators.
Article
Physics, Applied
E. Alex Wollack, Agnetta Y. Cleland, Patricio Arrangoiz-Arriola, Timothy P. McKenna, Rachel G. Gruenke, Rishi N. Patel, Wentao Jiang, Christopher J. Sarabalis, Amir H. Safavi-Naeini
Summary: This study investigates the performance of microwave-frequency phononic crystal resonators integrated with superconducting quantum circuits on thin-film lithium niobate. By exploring different design geometries, high mechanical internal quality factors were achieved, allowing for the indirect observation of phononic bandgaps and an analysis of loss channels' impact on device performance. An anomalous low-temperature frequency shift consistent with resonant TLS decay was observed, highlighting the potential role of material choice in mitigating losses.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Physical
Moustafa M. S. Sanad, Arafat Toghan
Summary: A highly efficient LiNbO3 (LNO) perovskite anode material was successfully prepared and chemically activated via acid treatment, leading to significant improvement in electrode performance. The chemical activation process resulted in changes in lattice parameters, cell volumes, and crystallite size of LNO, as well as confirmed improved electronic connectivity for the bulk electrode material. Galvanostatic cycling and rate capability tests demonstrated enhanced specific discharge capacity and capacity retention, along with reduced charge transfer resistance and improved Li+ ions conductivity after chemical activation of LNO anode.
SURFACES AND INTERFACES
(2021)
Review
Oncology
Alejandro Mazal, Juan Antonio Vera Sanchez, Daniel Sanchez-Parcerisa, Jose Manuel Udias, Samuel Espana, Victor Sanchez-Tembleque, Luis Mario Fraile, Paloma Bragado, Alvaro Gutierrez-Uzquiza, Nuria Gordillo, Gaston Garcia, Juan Castro Novais, Juan Maria Perez Moreno, Lina Mayorga Ortiz, Amaia Ilundain Idoate, Marta Cremades Sendino, Carme Ares, Raymond Miralbell, Niek Schreuder
Summary: Proton therapy has limitations in clinical practice, but researchers are proposing solutions to mitigate these limitations through biological and mechanical approaches, which need to be validated in clinical applications.
FRONTIERS IN ONCOLOGY
(2021)
Article
Spectroscopy
Maria C. Garcia Toro, Miguel L. Crespillo, Jose Olivares, Joseph T. Graham
Summary: This study investigates phonon confinement and strain effects in ion-irradiated and subsequently etched alpha-quartz. It was found that phonon coherence lengths decreased with increasing fluence, indicating ion tracks may confine optical phonons in quartz. Additionally, lattice strain contributions were observed at the highest fluence, with estimated induced stress on the order of 100 MPa.
JOURNAL OF RAMAN SPECTROSCOPY
(2021)
Review
Crystallography
Miguel L. Crespillo, Joseph T. Graham, Fernando Agullo-Lopez, Yanwen Zhang, William J. Weber
Summary: This study focuses on the role of oxygen vacancies in the optoelectronic properties of oxide perovskites, with a specific focus on the generation of oxygen vacancies through irradiation with high energy particles. Real-time optical detection has provided consistent results on the structure and optical features of these centers, offering insights into the impact of different types of radiation on defect structures in materials.
Article
Materials Science, Ceramics
Raul Florez, Miguel L. Crespillo, Xiaoqing He, Tommi A. White, Gregory Hilmas, William G. Fahrenholtz, Joseph Graham
Summary: Ion irradiation on Zirconium Carbide (ZrCx) induces dislocation loops in the microstructure and an increase in carbon vacancies, while subsequent electron irradiation leads to the formation of nanosized tetragonal ZrO2 precipitates. The initial microstructure of ZrCx substrate plays a key role in the nucleation and growth of oxide islands.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Instruments & Instrumentation
Maria C. Garcia Toro, Miguel L. Crespillo, Jose Olivares, Joseph T. Graham
Summary: The study characterized latent and etched ion tracks in alpha quartz generated by high electronic excitation. Different etching behaviors were observed in Y-cut and Z-cut samples, and nanostructure templates produced through vapor etching could be used for novel nanodevices with unique properties.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2021)
Article
Instruments & Instrumentation
V Tormo-Marquez, M. L. Crespillo, J. Olivares
Summary: High energy heavy ion irradiation in LiTaO3 was conducted to study the synergistic effects between nuclear and electronic energy loss mechanisms in damage generation. Optical waveguides were fabricated in LiTaO3 using F and Si ions, with refractive index profiles used for accurate damage profile determination. In-situ optical reflectance of low energy irradiations was performed to estimate nuclear damage kinetics in buried regions. Varying angle of incidence enhanced damage and confirmed the synergistic mechanism.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
(2021)
Article
Chemistry, Multidisciplinary
Nerith Rocio Elejalde-Cadena, Jose Octavio Estevez, Vicente Torres-Costa, Maria Dolores Ynsa-Alcala, Gaston Garcia-Lopez, Abel Moreno
Summary: By conducting molecular analysis of dinosaur eggshells using various techniques, it was determined that calcite is the main mineral present, along with identification of quartz and albite crystallographic planes, as well as nine amino acids and secondary structure components. This study contributes significantly to the field of paleontological research in understanding extinct species millions of years ago.
ACS EARTH AND SPACE CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Pablo Diaz-Rodriguez, Miguel Panizo-Laiz, Cesar Gonzalez, Roberto Iglesias, Ignacio Martin-Bragado, Raquel Gonzalez-Arrabal, Jose Manuel Perlado, Ovidio Pena-Rodriguez, Antonio Rivera
Summary: In this paper, an enhanced hydrogen permeation effect along grain boundaries in tungsten is reported. Experimental measurements and simulations support the observation that grain boundaries act as preferential migration pathways for hydrogen atoms, which has significant implications in reducing hydrogen retention in various applications.
EMERGENT MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Joseph T. Graham, Miguel L. Crespillo, Fernando Agullo-Lopez, William J. Weber
Summary: The initial luminescence yield of amorphous silica under ion irradiation has been studied, and a detailed model has been developed to explain the variations in the luminescence intensity. The model can quantitatively predict the experimental data.
Article
Materials Science, Multidisciplinary
Yufan Zhou, Gihan Velisa, Saro San, Miguel L. Crespillo, Zhe Fan, Hongbin Bei, William J. Weber, Pengyuan Xiu, Lumin Wang, Filip Tuomisto, Wai-Yim Ching, Yanwen Zhang
Summary: Understanding the defect production and damage evolution in concentrated solid solution alloys (CSAs) is crucial for revealing the underlying mechanisms behind their extraordinary mechanical properties and improved radiation tolerance. In this study, the defect structure in NiFeCoCr under ion irradiation was investigated using ion channeling technique and compared with previous results on Ni crystals. The influence of chemical complexity on defect production and clustering was discussed, and the role of chemical disorder in the CSA was investigated using ab initio calculations. The results provide insights into the impact of chemical complexity on defect structure evolution in CSAs.
JOURNAL OF NUCLEAR MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
B. LaRiviere, P. Ramuhalli, F. K. Reed, P. C. Joshi, M. N. Ericson, T. Aytug, M. L. Crespillo, S. J. Zinkle, W. J. Weber, E. Zarkadoula
Summary: This study reports and discusses the evaluation of surface acoustic wave (SAW) devices fabricated on bulk aluminum nitride (AlN) for elevated temperature and radiation environments. The experiments show that ion irradiation decreases the SAW resonant frequency and causes significant degradation in the conductivity of the SAW devices' electrodes.
IEEE TRANSACTIONS ON DEVICE AND MATERIALS RELIABILITY
(2022)
Article
Crystallography
Eduardo Salas-Colera, Miguel Tardio, Elisa Garcia-Tabares, Belen Perea, Miguel L. Crespillo, Juan Enrique Munoz-Santiuste, Beatriz Galiana
Summary: Nd3+-doped LaNbO phosphor thin films were prepared by sputtering on Si substrates and their light-emitting properties were characterized. Strong emission peaks at 880 nm and 1060 nm were observed when a 325 nm laser source was applied. Similar responses were found in powder samples. The results suggest the potential use of these phosphor substrates for improving solar cells.
Article
Archaeology
Judit Molera, Aurelio Climent-Font, Gaston Garcia, Trinitat Pradell, Oriol Vallcorba, Alessandro Zucchiatti
Summary: Cobalt has been used historically to color glass and glazes blue, with the presence of arsenic in blue glazes since around 1500 possibly due to variations in the processing of cobalt ore. Laboratory tests have shown that roasting cobalt arsenide ore does not completely remove arsenic, suggesting that an arsenic-free cobalt ore like linnaeite is the most likely source for arsenic-free glazes.
JOURNAL OF ARCHAEOLOGICAL SCIENCE-REPORTS
(2021)
Article
Materials Science, Multidisciplinary
Lauren Nuckols, Miguel L. Crespillo, Yang Yang, Ju Li, Eva Zarkadoula, Yanwen Zhang, William J. Weber
Summary: The coincident electronic and damage energy dissipation from energetic ions to an atomic lattice plays a crucial role in affecting damage production in single crystal 3C-SiC. The survival of defects along the ion trajectory is influenced by the spatial overlap of inelastic and elastic processes, with electronic energy dissipation via electron-phonon coupling playing a key role in decreasing defect survival for Si ions. The more energetic recoil spectrum for 10 MeV Au ions weakens the spatial coupling of electronic and damage energy dissipation processes, resulting in only a weak effect on damage production.
Article
Economics
Gelsomina Catalano, Gaston Garcia Lopez, Alejandro Sanchez, Silvia Vignetti
Summary: Research infrastructures are essential for creating new knowledge which can lead to innovation developments. The pathway from knowledge creation to innovation involves various players and significant investments. This paper evaluates the innovation impacts of the ALBA Synchrotron Light source facility and traces the pathways through which these impacts materialize.
ANNALS OF PUBLIC AND COOPERATIVE ECONOMICS
(2021)
