Article
Physics, Applied
Maryam Mandavifar, Sima Shekarforoush, Farhad Khoeini
Summary: Investigated the electronic properties of armchair-edged lateral phosphorene-graphene heterostructures, finding that the bandgap can be modulated by tuning the sizes of the domains, and in a semiconductor-metal heterostructure, phosphorene ribbon does not induce any electronic state near the Fermi level. Additionally, a transverse electric field can significantly change the electronic behavior of the heterostructure, leading to a semiconductor-metal phase transition and a topological phase transition from a band insulator to a topological insulator.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2021)
Article
Physics, Multidisciplinary
Andressa Nunes, Marcelo L. Lyra
Summary: This study investigates the realization of logical operations on X-shaped structures consisting of two discrete input chains connected to two output chains. The stationary scattering solution and the transmission spectrum of harmonic waves in the proposed structure are provided. It is shown that various Boolean logic operations can be implemented by digitizing the output signal using amplitude modulation. The relative phase between input harmonics can be used as a control parameter, and optimal regions in the parameter space for each logical function are identified through a detailed study of the contrast ratio.
Article
Physics, Condensed Matter
Guo Xiang Wang, Ying Zheng Zhang, Jun Hong Wei
Summary: This study investigates the topological phase transition of the square-hexagon lattice driven by the next-nearest-neighbor hopping. The topological invariant Z(2) is determined using the Fukui-Hatsugai method. The phase diagrams for different filling fractions and the size of the bulk band gap are displayed. The competition between t (1) and t (2) drives the system into a topological nontrivial phase.
JOURNAL OF PHYSICS-CONDENSED MATTER
(2022)
Article
Materials Science, Multidisciplinary
Jing Yin, Adnan Ahmed, Lan Xu
Summary: Through experimental and theoretical analysis, it was found that the depth of the solution reservoir has little effect on the quality of PAN nanofibers, but a significant impact on their yields. The PAN nanofibers prepared have the best quality and highest yields when the solution reservoir depth reaches 4.29 mm.
ADVANCED FIBER MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
E. Shneyder, M. Zotova, S. Nikolaev, S. G. Ovchinnikov
Summary: This study investigates the influence of electron-phonon interaction on the insulator-metal transitions driven by doping in a strongly correlated system, using the polaronic version of the generalized tight-binding method. It analyzes a wide electron-phonon parameter range and demonstrates the relationship between transition features and system properties such as polaron and bipolaron crossovers, redistribution of spectral weight, orbital selectivity, flat-band formation, and pseudogap behavior of various origins.
Article
Nanoscience & Nanotechnology
Feng-Lin Shyu
Summary: Band structures of bilayer armchair graphene nanoribbons (BLAGNRs) are calculated under an electric field in the tight-binding model. The electric field induces oscillatory band-gaps, leading to transitions between semiconductor and metal. The dielectric function is evaluated to obtain plasmon spectra, which are affected by temperature and exhibit different momentum-dependences.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2023)
Article
Engineering, Electrical & Electronic
Mojtaba Ashhadi
Summary: This paper presents a tight-binding model for investigating the thermoelectric properties of a molecular scale junction under an external electric field. The numerical calculations reveal that the electrical and thermal transport properties of the junction are dependent on the strength of the external electric field.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Biochemical Research Methods
Raad Chegel, Somayeh Behzad
Summary: The effects of transverse electric field on the electronic and thermal conductivity of carbon doped single-walled BNNTs are investigated. The results show that the electric field strength and location of the dopant atom affect the positions and intensity of DOS peaks. Band gap decreases with the electric field and there is a semiconductor-metal transition at a critical electric field. Additionally, the Lorenz number is dependent on temperature and changes with the electric field and angle for different structures.
JOURNAL OF MOLECULAR GRAPHICS & MODELLING
(2022)
Article
Mechanics
Xiukun Wang, Sen Wang, Wensheng Wu, Yipu Liang, Fuyong Wang
Summary: In this study, the mechanisms of oil-water flow within shale pore structures were investigated using pore-scale modeling methods and super-resolution reconstruction technology. An analytical solution and corresponding algorithm were proposed to investigate the variations in water saturation profiles and oil phase conductance during shale reservoir development. The results showed that pressure dropdown-induced viscous flow was the main mechanism for shale oil production, while imbibition had a minor effect, leading to a decrease in overall oil-relative permeability.
Article
Materials Science, Multidisciplinary
Gang Qin, Xichao Zhang, Ruixuan Zhang, Ke Pei, Chendi Yang, Chunyang Xu, Yan Zhou, Yizheng Wu, Haifeng Du, Renchao Che
Summary: We experimentally demonstrate the reversible motion of skyrmions driven by a controlled temperature gradient in a chiral magnet FeGe. The skyrmions show directional thermal diffusion along the gradient of temperature, indicating the thermal-induced skyrmion Hall effect. Our results provide a promising way for the realization of caloritronic applications based on topological spin textures.
Article
Physics, Condensed Matter
Feng-Lin Shyu
Summary: Band structures of armchair graphene nanoribbons (AGNRs) under crossed external fields are calculated using the tight-binding model. The results show that magnetic field and electric field both have significant effects on the band structures, further demonstrating the complex characteristics of these effects on plasmon spectra and reflectance spectra.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Nanoscience & Nanotechnology
Feng-Lin Shyu
Summary: The study investigates the electric-field-dependent plasmons of armchair and zigzag carbon nanotubes, revealing the zero-gap transition in zigzag nanotubes under increasing electric field. The band structures of carbon nanotubes in electric field display multiple local minima and maxima, leading to various transition channels. The position and amplitude of peak-dip structures in the dielectric functions show strong dependence on field strength and nanotube geometry.
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES
(2021)
Article
Chemistry, Multidisciplinary
Federico Paolucci, Francesco Crisa, Giorgio De Simoni, Lennart Bours, Claudio Puglia, Elia Strambini, Stefano Roddaro, Francesco Giazotto
Summary: Recent experiments have shown the possibility of tuning the transport properties of metallic nanosized superconductors through a gate voltage, sparking renewed debate on the interaction between electrostatic fields and superconductivity. The study provides conclusive evidence for the electrostatic-field-driven control of the supercurrent in metallic nanosized superconductors, and highlights the need for a novel theory to describe the nontrivial interaction of static electric fields with conventional superconductivity.
Article
Physics, Multidisciplinary
Vladimir V. Arsoski, Milan Z. Tadic
Summary: Using the tight-binding method, the study models the energy spectra of multilayer phosphorene nanoribbons in different external fields. The nanoribbons exhibit wide band gaps and edge states that are strongly affected by the external fields. The interlayer coupling in multilayered materials plays a significant role in inducing band inversions and topological-like features. Therefore, external fields can be used to control the electronic properties of multilayer phosphorene nanoribbons.
Article
Multidisciplinary Sciences
Angela Vella, Jonathan Houard, Laurent Arnoldi, Mincheng Tang, Matthias Boudant, Anas Ayoub, Antoine Normand, Gerald Da Costa, Ammar Hideur
Summary: The strong electromagnetic field at the atomic scale is crucial for future investigations and manipulations of ionization dynamics and excitation in solids. By coupling picosecond duration terahertz pulses to metallic nanostructures, extremely localized and intense electric fields can be generated. In this study, control over field ion emission from metallic nanotips is demonstrated using single-cycle terahertz pulses, showing ultrafast evaporation of surface atoms as ions induced by the terahertz near field on the subpicosecond time scale.
Article
Materials Science, Multidisciplinary
J. M. Pientka, R. Oszwaldowski, A. G. Petukhov, J. E. Han, Igor Zutic
Article
Physics, Multidisciplinary
Benedikt Scharf, Alex Matos-Abiague, Jong E. Han, Ewelina M. Hankiewicz, Igor Zutic
PHYSICAL REVIEW LETTERS
(2016)
Article
Chemistry, Multidisciplinary
Jiajun Li, Canaille Aron, Gabriel Kotliar, Jong E. Han
Article
Physics, Applied
F. Hetfleisch, O. Gunnarsson, R. Srama, J. E. Han, M. Stepper, H. -P. Roeser, A. Bohr, J. S. Lopez, M. Mashmool, S. Roth
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
(2018)
Article
Physics, Multidisciplinary
Y-H Lee, S. Xiao, K. W. Kim, J. L. Reno, J. P. Bird, J. E. Han
PHYSICAL REVIEW LETTERS
(2019)
Article
Chemistry, Physical
Peiyao Zhang, Tenzin Norden, James M. Pientka, Rafal Oszwaldowski, Arman Najafi, Biplob Barman, Yutsung Tsai, Wen-Chung Fan, Wu-Ching Chou, Jong E. Han, Igor Zutic, Bruce D. McCombe, Athos Petrou
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Physics, Applied
Narayan Mohanta, Tong Zhou, Jun-Wen Xu, Jong E. Han, Andrew D. Kent, Javad Shabani, Igor Zutic, Alex Matos-Abiague
PHYSICAL REVIEW APPLIED
(2019)
Article
Physics, Multidisciplinary
Tong Zhou, Matthieu C. Dartiailh, William Mayer, Jong E. Han, Alex Matos-Abiague, Javad Shabani, Igor Zutic
PHYSICAL REVIEW LETTERS
(2020)
Article
Physics, Applied
M. D. Randle, A. Lipatov, I Mansaray, J. E. Han, A. Sinitskii, J. P. Bird
Summary: CDW was first suggested by Peierls to describe concepts related to electron-phonon or electron-electron interactions in condensed matter physics. Recent studies have shown that semiconducting systems like TiS3 may exhibit behavior related to CDWs, with the exact origin of this behavior requiring further measurements for proper characterization.
APPLIED PHYSICS LETTERS
(2021)
Article
Physics, Applied
M. D. Randle, A. Lipatov, A. Datta, A. Kumar, I. Mansaray, A. Sinitskii, U. Singisetti, J. E. Han, J. P. Bird
Summary: We investigate the behavior of metal-insulator transition in TiS3 nanowire field-effect transistors under strongly nonequilibrium conditions. We observe the emergence of a critical fixed point that separates insulating and metallic regions in the device's transfer curves. The critical gate voltage defining this fixed point changes systematically with the drain bias, allowing us to map out a phase diagram. The field-induced metal-insulator transition in TiS3 can occur over a wide range of temperatures, depending on the choice of gate voltage used to tune the carrier concentration.
APPLIED PHYSICS LETTERS
(2022)
Article
Multidisciplinary Sciences
Tong Zhou, Matthieu C. Dartiailh, Kasra Sardashti, Jong E. Han, Alex Matos-Abiague, Javad Shabani, Igor Zutic
Summary: This study proposes a method to realize the fusion of MBS and demonstrate their non-Abelian statistics in mini-gate controlled planar Josephson junctions. The feasibility of preparing, manipulating, and fusing MBS in 2D systems is supported by experimental results. This research provides insights into the understanding and further study of MBS.
NATURE COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Thomas Vezin, Chenghao Shen, Jong E. Han, Igor Zutic
Proceedings Paper
Physics, Multidisciplinary
Jong E. Han, Jiajun Li, Camille Aron, Gabriel Kotliar
19TH INTERNATIONAL CONFERENCE RECENT PROGRESS IN MANY-BODY THEORIES (RPMBT)
(2018)
Article
Materials Science, Multidisciplinary
Jong E. Han, Jiajun Li, Camille Aron, Gabriel Kotliar
Article
Materials Science, Multidisciplinary
Jiajun Li, Jong E. Han