Results 81 to 90 of about 276,626 (313)

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

Advanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin, Wenhao Wang, Thomas Caiwei Tan, Abhishek Kumar, Ridong Jia, Nikhil Navaratna, Ranjan Singh, Lijuan Xie   +7 more
wiley   +1 more source

Influence of fixed charges and trapped electrons on free electron mobility at 4H-SiC(0001)/SiO2 interfaces with gate oxides annealed in NO or POCl3

Applied Physics Express
Free electron mobility ( μ _free ) in 4H-SiC(0001) MOSFETs with gate oxides annealed in NO or POCl _3 was calculated in a wide range of effective normal field ( E _eff ) from 0.02 to 2 MV cm ^−1 , taking account of scattering by fixed charges and trapped
Koji Ito, Hajime Tanaka, Masahiro Horita, Jun Suda, Tsunenobu Kimoto   +4 more
doaj   +1 more source

Spin Hall effect of linearly polarized light passed through a metasurface

Компьютерная оптика
The density of the longitudinal component of the spin angular momentum (SAM) vector is calculated for a paraxial vector Gaussian beam with a periodic one-dimensional modulation.
A.G. Nalimov, A.A. Kovalev
doaj   +1 more source

Two‐Dimensional Materials as a Multiproperty Sensing Platform

Advanced Functional Materials, EarlyView.
Various sensing modalities enabled and/or enhanced by two‐dimensional (2D) materials are reviewed. The domains considered for sensing include: 1) optoelectronics, 2) quantum defects, 3) scanning probe microscopy, 4) nanomechanics, and 5) bio‐ and chemosensing.
Dipankar Jana, Shubhrasish Mukherjee, Dmitrii Litvinov, Magdalena Grzeszczyk, Sergey Grebenchuk, Makars Šiškins, Virgil Gavriliuc, Yihang Ouyang, Changyi Chen, Yuxuan Ye, Meng Yiming, Maciej Koperski   +11 more
wiley   +1 more source

Emergent Magnetic Structures at the 2D Limit of the Altermagnet MnTe

Advanced Functional Materials, EarlyView.
Renewed interest in MnTe has emerged due to its intriguing altermagnetism, a newly identified form of magnetism distinct from conventional ferro‐, antiferro‐, or paramagnetism. By combining magnetic X‐ray absorption spectroscopy, scanning tunnelling microscopy, and first‐principles theory, this study reveals that thinning MnTe to the 2D limit ...
Marc G. Cuxart, Roberto Robles, Beatriz Muñiz Cano, Pierluigi Gargiani, Clara Rebanal, Iolanda Di Bernardo, Alireza Amiri, Fabián Calleja, Manuela Garnica, Miguel A. Valbuena, Amadeo L. Vázquez de Parga   +10 more
wiley   +1 more source

Analytic results of the excited electronic states at υ = 1/3 and the Laughlin-Jain microscopic wave function approaches

Condensed Matter Physics, 2019
In this work we studied the properties of a two-dimensional electronic gas subjected to a strong magnetic field and cooled at a low temperature. We reported exact analytical results of energies at the ground state. The results are for systems up to N_e =
M.A. Ammar
doaj   +1 more source

Spontaneous Anomalous Hall Effect Arising from an Unconventional Compensated Magnetic Phase in a Semiconductor

, 2023
R. D. Gonzalez Betancourt, Jan Zubáč, Rafael González‐Hernández, Kevin Geishendorf, Z. Šobáň, G. Springholz, K. Olejník, Libor Šmejkal, Jairo Sinova, T. Jungwirth, Sebastian T. B. Goennenwein, Andy Thomas, Helena Reichlová, Jakub Železný, Dominik Kriegner   +14 more
openalex   +2 more sources

Magnetic and Structural Response Tuned by Coexisting Mn Concentration‐Dependent Phases in MnBi2Te4 Thin Film Grown on GaAs(001) by Molecular Beam Epitaxy

Advanced Functional Materials, EarlyView.
The study explores structural and magnetic properties of one of the most recent topological quantum materials (MnBi2Te4). The Mn‐poor structure leads to stacking faults (quintuple layer ‐ QL of Bi2Te3 formation instead of a septuple layer ‐ SL of MnBi2Te4), resulting in a coexistence between weak antiferromagnetism and ferromagnetism.
Wesley F. Inoch, Sergio L. A. Mello, Gilberto Rodrigues‐Junior, Sukarno O. Ferreira, Marcelo M. Sant'Anna, Benjamin R. Salles, Mateus T. Souza, Sérgio L. Morelhão, Maybi F. Sampaio, Bráulio S. Archanjo, Leonarde N. Rodrigues   +10 more
wiley   +1 more source

Heat transfer characteristics in a non-Newtonian (Williamson) hybrid nanofluid with Hall and convective boundary effects

High Temperature Materials and Processes
Heat transfer (HT) technology is rapidly increasing due to the petition for well-organized heating systems and cooling systems in the requisite posited by chemical, automotive, and aerospace industries.
Alharbi Latifah Falah, Saadeh Rania, Ishak Anuar, Khan Umair, Hussain Syed Modassir, Madhukesh Javali Kotresh, Yılmaz Yalçın, Zaib Aurang   +7 more
doaj   +1 more source

Zn₂SnO₄ Thin Films for Photovoltaics: Structural Optimization and Charge Transport Analysis

East European Journal of Physics
In this study, (Zn,Sn)O thin films were synthesized and characterized for potential application as buffer layers in photovoltaic devices. The films were deposited using thermal evaporation in a high-vacuum chamber, followed by a controlled oxidation ...
Fakhriddin T. Yusupov, Tokhirbek I. Rakhmonov, Dadakhon Sh. Khidirov, Shakhnoza Sh. Akhmadjanova, Javokhirbek A. Akhmadaliyev   +4 more
doaj   +1 more source