Article
Materials Science, Ceramics
Aubrey L. Fry, Christian Krug, Lukas Ladinger, Tanja Lube, Seong H. Kim, John C. Mauro
Summary: This study investigates the effect of field strength on fracture toughness in alkaline earth aluminoborosilicate glasses and finds a strong correlation between fracture toughness, plasticity, and hardness.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Nithin Jayan Suraja, Ambazhathil Mahesh, Kaithakkal Solaman Sibi, Subodh Ganesanpotti
Summary: This work reports the crystal structure and multifunctional optical properties of A-site substituted double perovskite compounds in A(2)CdTeO(6) (A=Ba, Sr, Ca) system, synthesized through high-temperature solid-state reaction. The observed number of vibrational modes is used to investigate the crystal structure and the compounds are confirmed to belong to cubic, tetragonal, and monoclinic symmetries. The optical band gaps of Ba2CdTeO6, Sr2CdTeO6, and Ca2CdTeO6 are calculated, indicating their potential as host lattices for novel phosphor materials. Photoluminescence studies show intense red emission from Eu3+ substituted Sr2CdTeO6, with potential applications in temperature sensing.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Soulef Jellali, Hela Habli
Summary: This paper focuses on the study of molecules such as francium dimer and a comparative spectroscopic investigation of cationic systems Fr-(Ca+, Sr+, Ba+). Computational methods are used to determine relevant parameters and the accuracy and reliability of the results are discussed. The findings provide insights for future laser cooling applications.
JOURNAL OF PHYSICAL CHEMISTRY A
(2022)
Review
Chemistry, Multidisciplinary
Mingfei Zhou, Gernot Frenking
Summary: The alkaline earth elements, previously considered chemically uninteresting, are now recognized for their rich covalent chemistry and similar coordination structures to classic transition metals. Their properties and structures suggest a classification closer to transition metals rather than main group elements.
ACCOUNTS OF CHEMICAL RESEARCH
(2021)
Article
Multidisciplinary Sciences
Kimberley K. Mayfield, Anton Eisenhauer, Danielle P. Santiago Ramos, John A. Higgins, Tristan J. Horner, Maureen Auro, Tomas Magna, Nils Moosdorf, Matthew A. Charette, Meagan Eagle Gonneea, Carolyn E. Brady, Nemanja Komar, Bernhard Peucker-Ehrenbrink, Adina Paytan
Summary: Groundwater-derived solute fluxes have traditionally been considered less important than riverine fluxes in marine isotope budgets, however, this study shows that they play a significant role in mediating the magnitude and isotopic composition of terrestrially derived solute fluxes to the ocean. The isotopic compositions of groundwater-derived solutes differ from global riverine averages, a factor that should be prioritized in Earth-system models.
NATURE COMMUNICATIONS
(2021)
Article
Chemistry, Physical
Alberto Martinelli, Emanuela Sartori, Marta Campolucci, Maurizio Ferretti, Zeger Hens, Federico Locardi
Summary: Alkaline earth copper silicate-based pigments exhibit interesting near-infrared photoemission, with slightly different optical properties influenced by local structure variations. X-ray powder diffraction and pair distribution function analysis revealed a complex structural dynamic involving the tetrahedral framework embedding the copper chromophore group. This structure dynamic induces vibronic coupling and affects absorption and emission spectra in the visible and near-infrared range.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Miguel A. Salvado, Pilar Pertierra, J. Manuel Recio
Summary: This study reveals the phase transition mechanism of alkaline-earth carbonates through calculation and molecular dynamics simulation, and contributes to the understanding of the role of carbonates in the Earth's interior.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Materials Science, Ceramics
Xi Wang, Xiao Li Zhu, Lei Li, Xiang Ming Chen
Summary: The crystal structure and microwave dielectric characteristics of Ba1-xSrxHfO3 and Sr(1-y)CayHfO(3) ceramics were evaluated. The study found a strong correlation between the temperature coefficient of resonant frequency (iota(f)) and bond valence sum and tolerance factor. The stable phase of Ba1-xSrxHfO3 changed with increasing Sr-content, resulting in changes in the dielectric constant. Additionally, with increasing Ca-content in Sr1-yCayHfO3, iota(f) approached zero, consistent with the rattling effect.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Chemistry, Multidisciplinary
Chi-Hsuan Lee, Jen-Chuan Tung
Summary: In this study, electronic, elastic, and topological properties of several APoO(3) cubic perovskites were calculated using density functional theory. It was found that some of them are topological insulators with large bandgaps. The research suggests that these oxide perovskites might be useful for spintronic applications.
APPLIED SCIENCES-BASEL
(2021)
Article
Chemistry, Multidisciplinary
Chen Chen, Meng-hui Wang, Lin-Yan Feng, Lian-Qing Zhao, Jin-Chang Guo, Hua-Jin Zhai, Zhong-hua Cui, Sudip Pan, Gabriel Merino
Summary: We report a class of clusters containing a planar hexacoordinate silicon atom, and describe their structures and properties in detail. Heavier alkaline-earth atoms stabilize the peripheral ring by forming covalent bonds with silicon, while lighter homologues exhibit repulsive interactions due to electrostatic forces. Furthermore, we find that the planarity of the silicon core and the attractive nature of all six contacts are maintained in N-heterocyclic carbene and benzene-bound complexes, which has important practical applications.
Article
Materials Science, Ceramics
Ying Qiang Jia, Wei Kun Luo, Lei Li, Shu Ya Wu, Xiang Ming Chen
Summary: MSO4 (M = Ca, Sr, Ba) ceramics with different structures and microwave dielectric properties were studied. The characteristics of BaSO4 and SrSO4 having near-zero tau(f) make them potential candidates for low epsilon(r) microwave dielectric ceramics.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Mylene Hendrickx, Yawei Tang, Emily C. Hunter, Peter D. Battle, Joke Hadermann
Summary: The three polycrystalline samples of A(2)LaFe(2)SbO(9) perovskites (A = Ca, Sr, Ba) exhibit structural and compositional inhomogeneities, with Ca being monophasic while Sr and Ba show differences in octahedral filling patterns and B cation ordering. The temperature dependence of magnetic properties in each sample is also discussed.
JOURNAL OF SOLID STATE CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Jonathan M. DeStefano, Lin-Lin Wang
Summary: Recent studies have found that under ambient pressure, the nonmagnetic compounds AECd(2)As(2) are narrow band gap semiconductors, with SrCd2As2 having the smallest band gap. Application of negative pressure can reduce the band gap and induce band inversion, leading to the emergence of a pair of Dirac points along a specific direction.
Article
Materials Science, Multidisciplinary
Xuemei Zhang, Michael Y. Toriyama, James P. Male, Zhenzhen Feng, Shuping Guo, Tiantian Jia, Zhuoyang Ti, G. Jeffrey Snyder, Yongsheng Zhang
Summary: Embedding isoelectronic and isostructural XTe (X = Ca, Sr, Ba) compounds in Na-doped PbTe can significantly enhance thermoelectric performance through interface engineering and phonon scattering. The formation energies of charged intrinsic and extrinsic defects are investigated in a PbTe/PbXTe/XTe pseudo-interface, with low energy defects playing a crucial role in increasing Na concentration at the solid solution interface. Understanding these lowest energy defects paves the way for designing promising thermoelectric materials with interface phases.
MATERIALS TODAY PHYSICS
(2021)
Article
Engineering, Electrical & Electronic
Puneet Kaur, Atul Khanna
Summary: Alkaline earth and zinc vanadate samples prepared by solid state reaction method exhibit distinct crystal structures, good electrical properties, and intense photoluminescence, which are significant for the development of novel luminescent materials.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Engineering, Electrical & Electronic
Gurpreet Singh, Maninder Kaur, Bindiya Arora, Ravi Chand Singh
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2018)
Article
Physics, Multidisciplinary
Shankar Dutt, Sukhjit Singh, A. Mahajan, Bindiya Arora, B. K. Sahoo
Article
Physics, Atomic, Molecular & Chemical
Mandeep Kaur, Danish Furekh Dar, B. K. Sahoo, Bindiya Arora
Summary: This study calculates accurate values of electric dipole (E1) amplitudes and uncertainties for transitions among low-lying states of Mg+, Ca+, Sr+, and Ba+ ions, and provides transition probabilities, oscillator strengths, and lifetimes by combining experimental data. Additionally, electric quadrupole (E2) and magnetic dipole (M1) amplitudes for metastable states are also calculated, estimating corresponding transition probabilities and lifetimes. The results are compared with existing theoretical studies and experimental data, and are expected to be useful for astrophysical observations and simulations.
ATOMIC DATA AND NUCLEAR DATA TABLES
(2021)
Article
Physics, Atomic, Molecular & Chemical
Mandeep Kaur, Sukhjit Singh, B. K. Sahoo, Bindiya Arora
Summary: This paper presents the tune-out and magic wavelengths of alkaline earth-metal ions, evaluates E2 matrix elements of forbidden transitions, and compiles transition properties of singly charged ions for high-precision experiments. The data provided will be useful for applications in atomic physics and astrophysical observations.
ATOMIC DATA AND NUCLEAR DATA TABLES
(2021)
Article
Physics, Condensed Matter
Neelam Shukla, Harpreet Kaur, Bindiya Arora, Rajesh Srivastava
Summary: Theoretical calculations were conducted in this study on the two-dipole and three-dipole dispersion coefficients among the group XII atoms and their ions, including Zn, Cd, Hg, Zn+, Cd+, and Hg+. By evaluating dynamic dipole polarizabilities and reduced matrix elements using relativistic methods, the oscillator strengths corresponding to leading transitions and static dipole polarizabilities of these atoms and ions were determined for comparison purposes.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Quantum Science & Technology
T. Aoki, R. Sreekantham, B. K. Sahoo, Bindiya Arora, A. Kastberg, T. Sato, H. Ikeda, N. Okamoto, Y. Torii, T. Hayamizu, K. Nakamura, S. Nagase, M. Ohtsuka, H. Nagahama, N. Ozawa, M. Sato, T. Nakashita, K. Yamane, K. S. Tanaka, K. Harada, H. Kawamura, T. Inoue, A. Uchiyama, A. Hatakeyama, A. Takamine, H. Ueno, Y. Ichikawa, Y. Matsuda, H. Haba, Y. Sakemi
Summary: A method to measure the electron electric dipole moment using ultracold entangled francium atoms trapped in an optical lattice is proposed, potentially enabling a determination below the standard quantum limit and exploration of new physics models in particle physics.
QUANTUM SCIENCE AND TECHNOLOGY
(2021)
Article
Optics
Vipul Badhan, Simranpreet Kaur, Bindiya Arora, B. K. Sahoo
Summary: This study investigates the roles of blackbody friction forces (BBFFs) in slowing down alkali atoms and their significance in high-precision measurements. By analyzing the blackbody friction radiation in the experimental setup, the strength of BBFFs on alkali atoms is estimated. The study shows that nonresonant contributions significantly affect the slowdown time of atoms at low temperatures. These findings are important for understanding and accounting for slowdown times in high-precision experiments involving alkali atoms.
EUROPEAN PHYSICAL JOURNAL D
(2022)
Article
Physics, Atomic, Molecular & Chemical
Jyoti, Mandeep Kaur, Bindiya Arora
Summary: This study presents high-accuracy spectroscopic properties of Rb-isoelectronic Tc, Ru, and Rh ions, which can be used to analyze astrophysical phenomena involving these ions in celestial bodies. The relativistic many-body perturbation theory and various methods to account for electron interactions and wave function radiations were employed to ensure precise calculation of the properties.
Article
Physics, Atomic, Molecular & Chemical
Yanmei Yu, Duo Pan, Shaolong Chen, Bindiya Arora, Hua Guan, Kelin Gao, Jingbiao Chen
Summary: In this study, the energy levels and atomic properties of the Nd9+ ion were investigated using high-accuracy relativistic ab initio calculations. The results show the existence of long-lived states suitable for narrow-linewidth clock lines. The evaluation of experimental systematics and relativistic sensitivity coefficients provide validation for the use of Nd9+ ion in high-resolution spectroscopy and precision fundamental studies.
Article
Optics
Harpreet Kaur, Vipul Badhan, Bindiya Arora, B. K. Sahoo
Summary: In this study, we determine the C5 coefficients and their uncertainties due to quadrupole polarization effects in interactions between alkali atoms and various materials. The dynamic electric quadrupole polarizabilities are evaluated using a relativistic coupled-cluster method. The findings show that the C5 coefficients contribute significantly to the atom-wall interaction potentials at short distances, which is important for understanding the interactions of alkali atoms in different materials during high-precision measurements.
Article
Physics, Atomic, Molecular & Chemical
Tavshabad Kaur, Maninder Kaur, Arvind, Bindiya Arora
Summary: In this study, the time degradation of quantum information stored in a quantum memory device under a dissipative environment is investigated. The results show that, under certain parameters, the original information can be retrieved without degradation.
Article
Physics, Atomic, Molecular & Chemical
Jyoti, Harpreet Kaur, Bindiya Arora, Bijaya Kumar Sahoo
Summary: This article highlights the phenomenon of slight changes in state in an atomic system due to applied laser, which vanish at specific tune-out wavelengths. It discusses the inference of E1 matrix elements based on measurements and calculations of different wavelengths, and emphasizes the importance of angular momenta and magnetic components in determining these values.
Article
Optics
Harpreet Kaur, Sukhjit Singh, Bindiya Arora, B. K. Sahoo
Summary: This study investigates the electric quadrupole polarizabilities of the first two excited states of all alkali-metal atoms, and the estimated values are found to be in good agreement with literature values. These E2 polarizabilities for the excited states of alkali atoms, which were previously unknown, could be useful in precision measurements in this field.
Article
Optics
Harpreet Kaur, Neelam Shukla, Rajesh Srivastava, Bindiya Arora
Summary: This study calculates the dispersion interactions between heavy elements and graphene/carbon nanotubes using the Lifshitz theory and compares the static dipole polarizabilities, finding that graphene may be a preferable material for adsorbing toxic heavy elements.
Article
Optics
Sukhjit Singh, Mandeep Kaur, Bindiya Arora, B. K. Sahoo
