A two-band spinful k.p Hamiltonian of monolayer MoS2 from a nine-band model based on group theory
Sign Up to like & getrecommendations! Published in 2018 at "Superlattices and Microstructures"
DOI: 10.1016/j.spmi.2018.06.033
Abstract: Abstract We present a matrix representation of two-band low-energy spinful k.p Hamiltonian of monolayer MoS2 using group theory and Lowdin partitioning method. By considering the spin-orbit coupling and using nine bands, we have derived a… read more here.
Keywords: spinful hamiltonian; two band; band; group theory ... See more keywords
Boundary conditions in the Kane two-band theory of semiconductors
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Mathematical Physics"
DOI: 10.1063/5.0196901
Abstract: A quantum theory of semiconductor heterostructures is presented. Attention is focused on the interface between two intrinsic direct-gap semiconductors, especially when the gap is narrow. The motion of electrons in the semiconductors is analyzed in… read more here.
Keywords: two band; theory; boundary conditions; kane two ... See more keywords
Universal intrinsic orbital dynamics from Berry curvature in electronic two-band systems
Sign Up to like & getrecommendations! Published in 2025 at "Physical Review B"
DOI: 10.1103/42mj-sh8x
Abstract: The geometric structure of quantum states plays a fundamental role in determining the intrinsic dynamics of electrons in solids. In this work, we study the geometric origin of orbital angular momentum and its transport in… read more here.
Keywords: intrinsic orbital; berry curvature; band; orbital dynamics ... See more keywords
Local magnetic moment formation and Kondo screening in the presence of Hund exchange: Two-band Hubbard model analysis
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review B"
DOI: 10.1103/physrevb.110.075160
Abstract: We study formation and screening of local magnetic moments in the two-band Hubbard model in the presence of Hund exchange interaction using dynamic mean field theory approach. The characteristic temperatures of the formation, beginning and… read more here.
Keywords: magnetic moments; presence; local magnetic; band hubbard ... See more keywords
Effect of disorder on Berry curvature and quantum metric in two-band gapped graphene
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review B"
DOI: 10.1103/physrevb.110.245419
Abstract: The geometric properties of parameter space are mostly described by Berry curvature and quantum metric, which are the imaginary and real part of quantum geometric tensor, respectively. In this work, we calculate the dressed Berry… read more here.
Keywords: quantum metric; curvature quantum; two band; berry curvature ... See more keywords
Mechanism for Hall conductance of two-band systems against decoherence.
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review E"
DOI: 10.1103/physreve.95.042129
Abstract: The Kubo formula expresses a linear response of the quantum system to weak classical fields. Previous studies showed that the environment degrades the quantum Hall conductance. By studying the dynamics of dissipative two-band systems, in… read more here.
Keywords: two band; conductance; band systems; hall conductance ... See more keywords
Two-Band Model of Super-Regenerative Oscillators
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2023.3292621
Abstract: Super-regenerative oscillators (SROs), based on the switching of an oscillator, enable a high-gain amplification with the advantages of low cost, compact size, and low consumption. These advantages come at the expense of a complex operation,… read more here.
Keywords: super regenerative; two band; quench signal; regenerative oscillators ... See more keywords
High-cadence observations of galactic nuclei by the future two-band UV-photometry mission QUVIK
Sign Up to like & getrecommendations! Published in 2025 at "Journal of Astronomical Telescopes, Instruments, and Systems"
DOI: 10.1117/1.jatis.11.4.042222
Abstract: Abstract. The Quick Ultra-VIolet Kilonova surveyor (QUVIK), a two-band ultraviolet (UV) space telescope approved for funding as a Czech national science and technology mission, will focus on detecting early UV light of kilonovae (KNe) (Werner… read more here.
Keywords: band; galactic nuclei; mission; two band ... See more keywords
Two-band study on electromagnetic properties of Co-doped superconducting BaFe2As2 thin films
Sign Up to like & getrecommendations! Published in 2021 at "Modern Physics Letters B"
DOI: 10.1142/s0217984921503760
Abstract: Identifying the form of the superconducting order parameter in the Co-doped BaFe2As2 thin film is still an unsolved problem. With the Neumann boundary condition, we study the electromagnetic properties of this thin film based on… read more here.
Keywords: bafe2as2; film; bafe2as2 thin; two band ... See more keywords