bluuebunny/crossref_metadata_2025_split huggingface dataset:
MXene (Ti3C2T
x
)/TMD (ReSe2) nanohybrid-based flexible electromechanical sensors for cervical collar strain and shoulder load detection applications
Authors: Adepu Vivek , Tathacharya Manav , C S Raghuram , Sahatiya Parikshit 
Published: September 2023

Abstract
The possibly complex impacts of volunteer’s heavy backpacks, chronic neck pain are significant concerns and must be considered by the scientific and academic community. However already existing several alert systems can tackle these issues, but the evaluation approaches are costly and complicated. In this regard, ReSe2/Ti3C2T
x
nanohybrid based flexible sensors were fabricated by low-cost vacuum filtration technique and integrated into cervical collar strain and shoulder load detection alert systems to tackle these issues. The fabricated sensor displayed an excellent gauge factor of 14.38 and an improved sensitivity of 14.06 kPa−1. The response and recovery time of the pressure and strain sensor were 288 and 90 msec at 15% strain and 95 and 182 msec at 1.477 kPa pressure. There was a negligible degradation in performance when the pressure sensor was assessed for 5000 and the strain sensor for 4500 cycles, proving that the fabricated sensors are highly durable. The comprehensive underlying transduction mechanism is elucidated by intrinsic piezoresistive properties of nanohybrid (ReSe2/Ti3C2T
x
) and Schottky barrier height mechanism with complete electronic bandstructure realization using real-time ultraviolet photoelectron spectroscopy. Also, to transfer/receive data wirelessly on an Android/ios based smartphone, the fabricated sensors were connected to an electrical circuit with a microcontroller and Bluetooth module. The effective corroboration of the ReSe2/Ti3C2T
x
nanohybrid based physical sensors initiates innovative prospects in the field of flexible electronics.
Observation of the corner state in three-dimensional pyrochlore topological electric circuits
Authors: Guo Shengqun , Huang Jinke , Huang Ruimin , Su Shaojian , Lin Zhili , Qiu Weibin 
Published: September 2023

Abstract
Topological circuits become a powerful platform for realizing and observing topological states with significant flexibility and tunability. In this work, we experimentally realized three-dimensional pyrochlore topological circuits with a third-order topological corner state. The generalized chiral symmetry enables the corner state to exist in the band gap or the continuum, and the corner state in our circuits is localized on a single corner due to passing through the Wannier center. Our work provides a paradigm for exploring various topological phenomena in higher-dimensional systems by using topological circuits, which may have potential applications in the fields of future communication and signal processing.
The effects of abrasive moving speed and motion mode on the thinning mechanism of SiC in three-body contact
Authors: Zhou Yuqi , Huang Yuhua , Li Jinming , Lv Weishan , Zhu Fulong 
Published: September 2023

Abstract
Three-body contact is the main contact type in polishing process and leads to a different thinning mechanism than the two-body contact. Molecular dynamics simulation is employed to investigate the thinning mechanism of 3C-SiC substrate in three-body contact. The thinning mechanisms of 3C-SiC under different moving speeds and motion modes of diamond abrasive are compared. Through the analysis of force, temperature, potential energy, stress distribution and atomic flow field, the causes of different thinning mechanisms are explained. It is found that the influence of moving speed is mainly reflected in the temperature rise of substrate when the motion mode of abrasives is the same. The changes of motion mode will significantly alter the stress distribution, which is closely related to the damage depth and atomic flow field. When the feed speed is the same, increasing the self-rotation speed of abrasives can reduce concentration zone of hydrostatic stress and then reduce the damage depth. The self-rotation of abrasives will also change the distribution of von Mises stress, resulting in the different displacement directions of 3C-SiC atoms. Dislocations are more easily generated when the displacement direction of SiC atoms is the same. The moving speed of abrasive is found to have little effect on the thinning mechanism, while the motion mode of abrasive will significantly change the thinning mechanism.
Impact of PbO on structural, thermal, optical and gamma ray shielding behaviour of TeO2-CdO based glasses
Authors: Almuqrin Aljawhara H , Al-Ghamdi Hanan , Aloraini Dalal Abdullah , Sayyed M I , Kumar Ashok 
Published: September 2023

Abstract
A study was conducted to investigate the effect of an increase in the concentration of PbO on the structural, thermal, optical, and gamma ray shielding behavior of TeO2-CdO based glasses. The glasses were found to contain TeO4 and TeO3 units, as well as CdO metal oxide clusters, as indicated by the Raman spectrum. The glasses displayed minor weight loss (approximately 3%), suggesting high resistance to thermal degradation. With an increase in the concentration of PbO, the glass transition temperature (Tg), onset temperature (To), and crystallization temperature (Tc) all decreased. Additionally, the indirect band gap energy decreased from 3.497–3.337 eV as the lead oxide concentration increased. Moreover, the effects of PbO concentration on the linear attenuation coefficient (LAC) were investigated. The LAC values were found to be highest at 39.5 keV and decreased with increasing energy. As the PbO concentration increased, LAC values also increase. The Zeff displayed an inverse relationship with energy, except for an abrupt increase at 121.8 keV. The half value layer was found to be positively correlated with energy and varied with changes in PbO and CdO concentrations. The glasses demonstrated effective gamma radiation shielding properties, with the HVL remaining small even at higher energies, suggesting potential applications in industries such as medical imaging where thin shielding materials are preferred.
Nanofibre-based trap for Rb2 molecule
Authors: Márquez-Mijares M , Lepetit B , Brion E 
Published: September 2023

Abstract
We describe a theoretical proposal of a nanofibre-based trap for a Rb2 molecule prepared in the metastable state

(
1
)

3

Σ

u

+

. The trapping potential results from the combination of a travelling and a standing-wave fields, both carried by the fundamental guided mode HE11 of the fibre. We show that, with an experimentally realistic choice of laser frequencies and powers, one can implement a ≈200μK-deep well at ≈140 nm from the fibre surface accomodating for ≈500 translational molecular states.
Design, modeling, and analysis of a novel XY micro-displacement scanning stage with an elliptical compliant restraint mechanism
Authors: Zhang Xiaoyan , Li Weipeng , Li Shuai , Zheng Yan 
Published: September 2023

Abstract
This paper presents a novel piezoelectric XY micro-displacement scanning stage (MDSS), which features a parallel structure based on compliant mechanisms and has a compact configuration. Since the coupling problem between two motion axes, an innovative elliptical compliant restraint mechanism (ECRM) with a compact layout is proposed and utilized in XY MDSS to obtain high motion accuracy. And the XY MDSS can realize compact structure and lower input stiffness for a large workspace owing to the ECRM simultaneously. Due to the limited displacement of the piezoelectric stack actuator, compliant amplification mechanism is applied to achieve a large stroke. In order to estimate the static and dynamic characteristics theoretically, Castigliano’s second theorem and Lagrange’s method are utilized to establish the analytical models of the newfangled ECRM, compliant amplification mechanism, and XY MDSS. The finite element analysis and experimental tests are carried out to evaluate the performances of XY XDSS, and the results are all in correspondence with analytic solutions, which further validate the correctness of the analytical modeling methodologies. Experimental results show that the XY MDSS can realize a workspace of 58.8 μm × 51.5 μm with a resonance frequency of 576.5 Hz and nanometer-level resolution. The effectiveness of the designed ECRM is also proved simultaneously, which could well limit the coupling motion. The theoretical studies, finite element analysis, and experimental testing all demonstrate that the designed XY MDSS with ECRM has good performance while having a compact structure.
Stability, convergence and error analysis of B-spline collocation with Crank–Nicolson method and finite element methods for numerical solution of Schrodinger equation arises in quantum mechanics
Authors: Jena Saumya Ranjan , Senapati Archana 
Published: September 2023

Abstract
In the present study, the complex-valued Schrodinger equation (CVSE) is solved numerically by a nonic B-spline finite element method (FEM) in quantum mechanics. The approach employed is based on the collocation of nonic B-splines over spatial finite elements, so that we have continuity of the dependent variable and its first eight derivatives throughout the solution range. For time discretization, the Crank-Nicolson scheme of second order based on FEM is employed. The method is shown to be unconditionally stable and accurate to order. Three problems are considered to validate the algorithm. Comparisons are made with existing methods and analytical solutions. The proposed method exhibits good conservation properties and performs well with regards to analytical solutions for different error norms and conservative constants related to parameters in quantum classes in Physics. The computational complexity of (2N+18) arithmetic operations with the help of a nonic-diagonal matrix is also tackled by the present scheme.
Dynamical analysis and circuit implementation of a memristive chaotic system with infinite coexisting attractors
Authors: Li Xinying , Sun Shaoze , Yang Zongkai , Li Jinping 
Published: September 2023

Abstract
In order to obtain a chaotic system with more complex dynamic characteristics and more suitable for engineering applications, this paper combines a general memristor containing a hyperbolic tangent function with a simple three-dimensional chaotic system to construct a four-dimensional memristive chaotic system with infinite coexisting attractors. The memristive chaotic system is thoroughly studied through numerical simulations of various nonlinear systems, including the Lyapunov exponent spectra, bifurcation diagram, C0 complexity, two-parameter bifurcation diagram and basins of attraction. The analysis reveals that this system has complex dynamical behavior. It includes not only periodic limit loops and chaotic attractors that depend on the variation of system parameters, but also the extreme multi-stability phenomenon of infinite coexisting attractors that depend on the variation of the initial conditions of the system. In addition, the chaos degradation and offset boosting control of the system are also studied and analyzed. Finally, the correctness and realizability of the memristive chaotic system are verified by circuit simulation and hardware circuit fabrication.The experimental results show that this memristive chaotic system can lay the foundation for practical engineering fields such as secure communication and image encryption.
Photo sensing analysis of T-shape TFET sensor under visible range of spectrum
Authors: Tiwari Shreyas , Saha Rajesh 
Published: September 2023

Abstract
This paper presents the optical performance of T-shape TFET based photo sensor under visible range of spectrum using a technology computer-aided design (TCAD) Synopsys simulator. The optical analysis of a photo device results in enhancement of spectral sensitivity (Sn), Signal to noise ratio (SNR), Responsivity (R), recombination rate, drain current, and optical generation rate. The result reveals that device under illumination reports magnitude of SNR are 67.79, 47.38, and 38.3 dB at λ= 300, 500, and 700 nm, respectively. The primary objective for investigating the optical operation of TFET is to detect Sn at low gate voltage and make it suitable for low power optical applications in the visible range of spectrum. Finally, a comparison table is introduced to compare the sensitivity of proposed TFET based photo sensor with the existing FET based sensor. TFET based photo sensors have found widespread applications in electronic devices such as wearable bands, smart watches, and IoT appliances, where power efficiency is critical.
Nanostructuring of strontium titanate by highly energetic ions induced plasma
Authors: El-Said A S , Moslem W M , Tolba R E , Bahlouli H 
Published: September 2023

Abstract
Highly energetic heavy ions are efficient tool in surface nanostructuring of various materials. The irradiation of strontium titanate with GeV xenon ions leads to the creation of surface nanohillocks, where each hillock is produced by single ion impact. We focus on the creation mechanism of the nano-sized hillocks by presenting a new approach, which is based on the ability of the ion-induced strong electronic excitations in forming localized plasma. The creation of nano-plasma leads to the existence of nonlinear ion-acoustic mode that propagates in the plasma as an indicator to the feature of the nanohillocks. The solution of the plasma hydrodynamic equations shows a bell-shape relation between the normalized electron number density and distance along the crystal. The similarity to the hillock profile implies the importance of electron density in producing the observed surface structures. Furthermore, the utilized model explains the creation mechanism of hillocks-like structures in case of normal incidence as well as grazing incidence of highly energetic heavy ions.
Individual versus simultaneous estimation of two parameters in a correlated noisy environment
Authors: Guo Youneng , Chen Xiangjun , Yang Cheng , Xie Qin 
Published: September 2023

Abstract
Recently, the phase parametric estimation for a single qubit system driven by a phase noisy laser under non-Markovian dynamics has been reported [Annals of Physics 351, 952 (2014)]. We here generalize the single-parameter estimation to the two-parameter scenario where a two-qubit system is influenced by the classical correlated noisy laser, and compare the performances of two-parameter estimation in both individual and simultaneous strategies by using the quantum Fisher information and the quantum Fisher information matrix, respectively. Our results show the phase parametric estimation precision can be significantly improved due to the memory effect arising from successive applications of the noisy laser. With the memory coefficient μ increasing, the precision of parameter estimation becomes more accurate. Besides, the phase parameter estimation precision can be drastically enhanced by engineering the ratios of classical phase diffusion rate and system-environment coupling strength in both Markovian and non-Markovian regions. Remarkably, we find the simultaneous estimation of two-phase parameters is not always advantageous over the individual strategy.
The role of various heterostructures on radiation tolerance of Cu-based nanocomposites
Authors: Amini Maryam , Azadegan Behnam 
Published: September 2023

Abstract
Using heterogeneous or multilayer structures of graphene and molybdenum disulfide (MoS2) has bright prospects for designing NCs with high radiation tolerance. This heterostructure can improve the radiation tolerance of Cu-based nanocomposites (NCs). In this study, the effects of the morphology of interface materials on the radiation tolerance of NCs are investigated. Single cascade induced by 3, 6, and 9 keV primary knocked-on atom (PKA) and 6 keV PKA-induced cascade overlaps are studied in three different NCs using molecular dynamics (MD) simulations. Results show the performance of interface morphology to inhibit defects in bulk regions of NCs. A comparison between radiation tolerance and stability of the Cu-based NCs including MoS2/gr/MoS2 heterostructure (Sample 1), Cu/5gr/Cu (Sample 2), and Cu/MoS2@Cu@MoS2/Cu (Sample3) shows that Cu-MoS2-gr configuration has the lower number of surviving defects after single cascade induced by different energies of PKA. This phenomenon highlights the bonds’ role of S-S, Mo-Mo, and Mo-S of the MoS2 and ultra-strength C-C bonds of graphene in controlling the frequent collision-triggered shock wave’s energy in layers of the Cu-MoS2-gr interface. We found that with increasing the number of cascade overlaps, the number of defects in the cascade bulk (bulkc) region of Sample 2 and Sample 3 NCs fluctuates. Results show that after about fifth overlapped cascades, the raising rate of the number of defects in the sub-cascade bulk (bulksc) region of the Sample 3 NC is higher than that of other NCs. These results prove that the damaged area which has been created by the first collision cascade, doesn’t change with increasing the number of overlapped cascades, but can affect controlling defects in bulks. Results imply that the composite resulting from Cu-MoS2-gr and Cu-gr exhibits an extraordinary ability to resist irradiation damage. These results highlight the role of interface morphology in inhibiting damage and suggest new models of NCs.
Valley dependent tunable Berry curvature related properties in heterojunction of graphene on WSe
2
Authors: Aftab Tayyaba 
Published: September 2023

Abstract
Heterojunction of graphene on WSe
2 has strong spin–orbit coupling (SOC) in terms of valley Zeeman λ

vz
and Rashba λ

r
contributions. The interplay of SOC terms and lattice potential term are shown to tune the behavior of the heterojunction in terms of energy dispersion. The valley and spin degree of freedom are useful for the tuning and use of the heterojunction as a potential candidate in valleytronics and spintronics. We have shown Berry curvature, magnetic moment, orbital magnetization and Nernst coefficient to be valley, spin and SOC dependent. All these factors are shown to influence the behavior of the graphene on WSe
2. We are able to tune and vary the behavior according to the needs by the interplay of these factors.
Electronic properties of MnO(110) film grown on Cu (111)
Authors: Alí Astrid , Caetano Rubem , Barreto Jade , Félix Guilherme , Soares Archanjo Braulio , Achete C A , Stavale Fernando , Annese Emilia 
Published: September 2023

Abstract
In this study, we investigated MnO thin films grown on Cu(111) using a soft x-ray and UV based spectroscopy, low energy electron diffraction (LEED), scanning tunneling (STM) and scanning transmission electron microscopy (STEM). MnO thin film assumes (110) preferential plane orientation organized in different spatial domains to better adapt to Cu(111) surface and an in-plane/out-of-plane lattice parameter variation up to 11% with respect to bulk counterpart originating a sizeable XLD signal at Mn L2,3 edges. The formation of oxidized Cu region during the MnO thin film growth is not avoidable due to the copper reactivity to oxygen and at the interface the coexistence of MnO islands alternated with Cu2O regions was observed by STM. Mn 2p and Mn 3s core level photoemission line shapes present a slight change in multiplet peak relative intensity with respect bulk MnO counterpart due to the role of Cu substrate in the core level relaxation process. The photon energy dependent photoemission spectra of valence band discriminate the MnO states and indicate a weak influence of the substrate once the film thickness is reduced to 1 nm. These findings open new route in the tuning oxide thin film properties.
Solvable limits of a class of generalized vector nonlocal nonlinear schrödinger equation with balanced loss-gain
Authors: Ghosh Supriyo , Ghosh Pijush K 
Published: September 2023

Abstract
We consider a class of one dimensional Vector Nonlocal Non-linear Schrödinger equation (VNNLSE) in an external complex potential with time-modulated Balanced Loss-Gain(BLG) and Linear Coupling(LC) among the components of Schrödinger fields, and space-time dependent nonlinear strength. The system admits Lagrangian and Hamiltonian formulations under certain conditions. It is shown that various dynamical variables like total power,




-symmetric Hamiltonian, width of the wave-packet and its speed of growth, etc are real-valued despite the Hamiltonian density being complex-valued. We study the exact solvability of the generic VNNLSE with or without a Hamiltonian formulation. In the first part, we study time-evolution of moments which are analogous to space-integrals of Stokes variables and find condition for existence of solutions which are bounded in time. In the second part, we use a non-unitary transformation followed by a coordinate transformation to map the VNNLSE to various solvable equations. The coordinate transformation is not required at all for the limiting case when non-unitary transformation reduces to pseudo-unitary transformation. The exact solutions are bounded in time for the same condition which is obtained through the study of time-evolution of moments. Various exact solutions of the VNNLSE are presented.
The role of Sn and Zn substitutions on the magnetic properties of nanosized Y-type hexaferrite prepared by sol-gel auto-combustion method
Authors: Jafari A , Monsef S , Shokrollahi H , Mirzaee O 
Published: September 2023

Abstract
The current paper has focused on the improvement of the magnetic performance of the Sn, Zn-doped Y-type hexaferrite nanoparticles via the sol–gel auto-combustion method. The partial replacement of nonmagnetic Zn2+ and Sn4+ cations for the magnetic Fe3+ cation was studied. At the low Zn-Sn concentration, the Sn4+ cations had a preference for octahedral locations (12k, 2a, 4f2) and the Zn2+ cations had a strong tendency to move to the tetrahedral spaces (4f1), respectively. Based on this data, the single-phase hexaferrites with the chemical formula of Sr2Co1.7Mg0.3Fe(12-x)Snx/2Znx/2O22 (x = 0, 0.2, 0.4, 0.6, 0.8, and 1.0) were successfully synthesized via the sol–gel auto-combustion method. The x-ray Diffraction (XRD), Fourier Transform Infrared (FTIR), Thermal Gravimetric Analysis (TGA), Differential Thermal Analysis (DTA), Field Emission Scanning Electron Microscopy (FESEM) and Vibrating Sample Magnetometer (VSM) were carried out to investigate the obtained ferrite performance. The results revealed the formation of the single-phase platelet-like Y-type hexagonal ferrites after calcinations at 1000 °C with a thickness of 30–70 nm and a particle size of 90–210 nm. The obtained nanosized ferrites had the magnetic coercivity (Hc) and the saturation magnetization (Ms) in the range of 2100–637 Oe and 38–48 emu g−1, respectively. The addition of Sn, Zn dopants enhanced the saturation magnetization and reduced the magnetic coercivity, which can make this ferrite a candidate for some applications.