Article
Chemistry, Multidisciplinary
Nataliia S. Vorobeva, Alexey Lipatov, Angel Torres, Jun Dai, Jehad Abourahma, Duy Le, Archit Dhingra, Simeon J. Gilbert, Pavlo Galiy, Taras M. Nenchuk, Dmitry S. Muratov, Talat S. Rahman, Xiao Cheng Zeng, Peter A. Dowben, Alexander Sinitskii
Summary: Theoretical and experimental investigations were conducted on mechanically exfoliated In4Se3 flakes, revealing anisotropic electronic properties and comparable electron mobility on Si/SiO2. In4Se3 devices exhibit a visible range photoresponse on a timescale of less than 30 ms, depending on the polarization of the excitation light.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Tuan V. Vu, O. Y. Khyzhun, A. A. Lavrentyev, B. Gabrelian, V. Sabov, M. Y. Sabov, M. Y. Filep, A. Pogodin, I. E. Barchiy, A. O. Fedorchuk, B. Andriyevsky, M. Piasecki
Summary: In this study, a centimeter size crystal of silver- and bismuth-bearing selenophosphate, AgBiP2Se6, was grown for the first time by Bridgman technique and characterized via different experimental and theoretical techniques. The AgBiP2Se6 compound was found to have a well-defined layered structure and highly anisotropic optical constants, making it a promising optoelectronic semiconductor. Theoretical analysis revealed the dominance of Se p states in the upper section of the valence band, Ag d states in the central section, and P p states in the bottom section.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Nanoscience & Nanotechnology
Rui Zhu, Zhibin Gao, Qijie Liang, Junxiong Hu, Jian-Sheng Wang, Cheng-Wei Qiu, Andrew Thye Shen Wee
Summary: Anisotropic magnetoresistance has been studied and demonstrated in layered non-magnetic semiconducting PdSe2 flakes, showing differences in magnetoresistance along different crystalline axes. The magnetoresistance can be flexibly tuned by applying a gate voltage, supported by ab initio density functional calculations. These findings advance the understanding of magnetoresistance in anisotropic transition-metal dichalcogenides and pave the way for potential applications in anisotropic spintronic devices.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Optics
Ravi P. N. Tripathi, Jie Gao, Xiaodong Yang
Summary: Naturally occurring layered mineral livingstonite is identified as a new type of van der Waals (vdW) heterostructure based 2D material with strong anisotropic vibrational and optical responses. The crystal exhibits anomalous linear dichroism (LD) transition effect and butterfly-shaped third-harmonic generation (THG) emission pattern. This research provides insights into the application of livingstonite as a novel vdW heterostructure 2D material.
Article
Multidisciplinary Sciences
Arindam Dasgupta, Xiaodong Yang, Jie Gao
Summary: In this study, we mechanically exfoliated natural cannizzarite mineral to obtain thin vdW heterostructures of PbS-type and Bi2S3-type atomic layers, and explored the anisotropic optical properties of the structure. The results demonstrate that cannizzarite has the potential to be used for manufacturing polarization-sensitive linear and nonlinear photonic devices for on-chip optical computing and optical information processing.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Ravi P. N. Tripathi, Jie Gao, Xiaodong Yang
Summary: In this study, large-area thin quaternary 2D material flakes were prepared via mechanical exfoliation from a naturally occurring bulk crystal named gillulyite. The anisotropic linear and nonlinear optical properties of the exfoliated gillulyite flakes, including anisotropic Raman scattering, linear dichroism, and anisotropic third-harmonic generation (THG), were investigated. The strong anisotropic optical responses of gillulyite crystal are expected to enhance the understanding of light-matter interaction in quaternary 2D materials and have potential applications in technological innovations.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
D. V. Prodan, G. V. Paradezhenko, D. Yudin, A. A. Pervishko
Summary: By using density functional theory calculations, this study investigates the initial stage of competitive alloying of co-deposited silver and indium atoms on a silicon surface. The adsorption positions and activation barriers governing their diffusion on a dimer-reconstructed silicon surface are identified. A growth model is developed that describes the diffusion mechanisms and silicon morphology, considering silicon dimerization and the presence of C-type defects. Surface kinetic Monte Carlo simulations are used to examine the dynamics of bimetallic adsorption and the temperature effects on the submonolayer growth of an Ag-In alloy. The study reveals that the epitaxial bimetallic growth can potentially lead to exotic ordering of adatoms in the form of anisotropic two-dimensional lattices via orthogonally oriented single-metal rows.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
G. Gebreyesus, Prosper Ngabonziza, Jonah Nagura, Nicola Seriani, Omololu Akin-Ojo, Richard M. Martin
Summary: We report electronic band structure calculations for Sr4Ru3O10, which exhibit both ferromagnetic and metamagnetic behavior. Our density functional calculations confirm that the ground state is ferromagnetic, consistent with experimental findings. We demonstrate that the resulting spin polarization has significant effects on the electronic properties, with majority-spin bands forming narrow bands near the Fermi energy. The inclusion of a Hubbard interaction U applied to the Ru 4d states greatly influences the narrow bands, providing insights into the role of Coulomb interactions and correlated many-body physics.
Article
Chemistry, Multidisciplinary
Peng Xiao, Emigdio Chavez-Angel, Stefanos Chaitoglou, Marianna Sledzinska, Athanasios Dimoulas, Clivia M. Sotomayor Torres, Alexandros El Sachat
Summary: The study systematically investigated the thermal conductivity of SnSe2 films of varying thickness, revealing a thermal conductivity anisotropy and a decrease in thermal conductivity with decreasing film thickness. Phonon contributions to the thermal conductivity were also identified using the mean free path reconstruction method.
Article
Materials Science, Multidisciplinary
Xiaohui Yang, Tonghua Yu, Chenchao Xu, Jialu Wang, Wanghua Hu, Zhuokai Xu, Tao Wang, Chao Zhang, Zhi Ren, Zhu-an Xu, Motoaki Hirayama, Ryotaro Arita, Xiao Lin
Summary: The research discovered superconductivity and topological features in Pb1/3TaS2, indicating that this material is a promising arena for studying the interplay between superconductivity and topological Dirac fermions.
Article
Chemistry, Multidisciplinary
Fan Jin, Zhichao Zhao
Summary: The reconstructed shape of the anatase (001) surface is not relevant to its high reactivity, with both the unreconstructed surface and ADM surface showing high reactivity towards dissociating water molecules. Additionally, the internal atomic layer structure of the ADM surface is unfavorable for hole transfer.
Article
Biochemistry & Molecular Biology
Victor V. Atuchin, Ludmila I. Isaenko, Sergei Lobanov, Alina A. Goloshumova, Maxim S. Molokeev, Zhaoming Zhang, Xingyu Zhang, Xingxing Jiang, Zheshuai Lin
Summary: In this study, optical quality cm-sized LiInSe2 crystals were grown using the Bridgman-Stockbarger method. The phase purity of the grown crystal was confirmed using powder XRD analysis. The thermophysical characteristics of LiInSe2 were determined and its strong anisotropy in thermal expansion coefficients was established. The electronic structure of LiInSe2 was measured using X-ray photoelectron spectroscopy and its band structure was calculated using ab initio methods.
Article
Materials Science, Multidisciplinary
Jose Benito Llorens, Edwin Herrera, Victor Barrena, Beilun Wu, Niclas Heinsdorf, Vladislav Borisov, Roser Valenti, William R. Meier, Sergey Bud'ko, Paul C. Canfield, Isabel Guillamon, Hermann Suderow
Summary: The study of CaK(Fe0.95Ni0.05)4As4 revealed that doping with nickel leads to a decrease in superconducting critical temperature and the onset of spin-vortex crystal antiferromagnetic order, which alters the band structure and results in a fourfold superconducting gap anisotropy.
Article
Chemistry, Multidisciplinary
Jie Deng, Wei Zhang, Xu Dai, Yu Yu, Zhifeng Li, Wei Wang, Lin Wang, Jing Zhou, Xiaoshuang Chen
Summary: This study conducted a thorough investigation on the polarization-dependent infrared photoresponse of WTe2, revealing a perfect consistency between wavelength-dependent polarization-sensitive photoresponse and anisotropic dielectric constant, mainly affected by interband transitions near the Weyl point. The study found that polarization sensitivity and responsivity both vary non-monotonically with wavelength.
Article
Acoustics
Ajinkya Baxy, A. Rajan, Arnab Banerjee
Summary: The paper reveals a peak phenomenon in curved beams and proposes a solution by introducing the concept of layered periodic curved beams to reduce the impact of this peak, thus improving the application performance of curved beams.
JOURNAL OF SOUND AND VIBRATION
(2021)
Article
Nanoscience & Nanotechnology
P. V. Galiy, T. M. Nenchuk, O. R. Dveriy, A. Ciszewski, P. Mazur, S. Zuber
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2009)
Article
Materials Science, Multidisciplinary
P. Galiy, A. Ciszewski, O. R. Dveriy, Ya B. Losovyj, P. Mazur, T. M. Nenchuk, S. Zuber, Ya M. Fiyala
FUNCTIONAL MATERIALS
(2009)
