相关参考文献
注意：仅列出部分参考文献，下载原文获取全部文献信息。
Article
Chemistry, Multidisciplinary
Angus Huang et al.
Summary: This study predicts the presence of exotic quasiparticles (threefold fermions and nodal-line fermions) in the multinary semiconductor alloy TlCd2Te4 using first-principles calculations. It also investigates their properties, protection mechanisms, and the possibility of coexistence with other topological phenomena like Weyl semimetal and superconductivity.
Article
Chemistry, Multidisciplinary
Liesbeth Mulder et al.
Summary: In this study, ultrathin films of the ternary topological insulator (Bi0.4Sb0.6)(2)Te-3 were fabricated using molecular beam epitaxy. The influence of the substrate on the formation of defects, mosaicity, and twin domains was found to be significant.
Article
Chemistry, Multidisciplinary
Musa A. M. Hussien et al.
Summary: Perpendicular magnetic tunnel junctions are an important design platform for studying metal-insulator-metal heterostructure materials. Accurate characterization of the sensitivity of their electronic structure to proximity coupling effects based on first-principles calculations is key in the fundamental understanding of their emergent collective properties at macroscopic scales.
Article
Chemistry, Multidisciplinary
Slawomir P. Lepkowski et al.
Summary: By studying the phase transitions and properties of topological insulators in InGaN/GaN and InN/InGaN double quantum wells, we show that topological insulators can be obtained under certain conditions. The size of the energy gap in the topological insulator phase varies in different structures. These findings provide important guidance for achieving topological insulators in InGaN-based nanostructures in the future.
Article
Chemistry, Multidisciplinary
Daniel Bonilla et al.
Summary: The study investigates electronic and thermoelectric transport in a type I Weyl semimetal nanojunction with a torsional dislocation defect, in the presence of an external magnetic field. The analysis reveals chiral valley-polarization in electric current and the signature of Landau levels in conductance due to the combination of strain and magnetic field. Additionally, high thermopower and a large figure of merit are predicted for the junction in terms of thermal transport coefficients.
Article
Chemistry, Multidisciplinary
Shu-Hsuan Su et al.
Summary: The self-regulated growth of MnBi2Te4 films by molecular beam epitaxy was studied, showing that tuning the substrate temperature can control the stoichiometry of MnBi2Te4 and further reveal its magnetic and topological properties. The research provides important insights for the synthesis of nanoscale MnBi2Te4 films.
Article
Chemistry, Multidisciplinary
Gennady M. Gusev et al.
Summary: The thermoelectric response of 80 nm-thick strained HgTe films in a three-dimensional topological insulator was experimentally studied. An ambipolar thermopower was observed, with the Fermi energy shifting from the conduction band to the valence band. The comparison between theory and experiment showed that the thermopower was mainly due to phonon drag contribution, and the Seebeck coefficient was modified in the region where 2D Dirac electrons coexisted with bulk hole states due to electron-hole scattering.
Review
Chemistry, Multidisciplinary
Ruben Gracia-Abad et al.
Summary: Bi2Se3, a topological insulator with a simple surface band structure and a relatively large band gap, has garnered attention for its potential in transport properties. Studies have revealed a significant relationship between the mobility and phase coherence length in Bi2Se3 thin films, indicating potential for further experiments on transport in topological systems.
Article
Chemistry, Multidisciplinary
Longwen Zhou
Summary: In this work, the authors investigate the momentum-space counterpart of higher-order topological phases (HOTPs) in time-periodic driven systems using a two-dimensional quantum double-kicked rotor. The found Floquet HOTPs are protected by chiral symmetry and characterized by topological invariants that can take arbitrarily large integer values. Under open boundary conditions, the system exhibits multiple quartets of Floquet corner modes and delocalized bulk states, forming second-order Floquet topological bound states in the continuum.
