Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Pak, Hak Chol"'
Publikováno v:
Archives of Acoustics 46 (2021) 637-647
The problem of reducing noise in the transportation is an important research field to prevent accidents and to provide a civilized environment for people. A material that has recently attracted attention in research to reduce noise is acoustic metama
Externí odkaz:
http://arxiv.org/abs/2012.12226
Publikováno v:
Phys. Rev. B 103, 235150 (2021)
Motivated by recent discovery of correlated insulating and superconducting behavior in twisted bilayer graphene, we revisit graphene's honeycomb lattice doped close to the van Hove singularity, using the truncated unity functional renormalization gro
Externí odkaz:
http://arxiv.org/abs/2012.05497
Publikováno v:
Phys. Rev. B 99, 245140 (2019)
The impact of local and nonlocal density-density interactions on the electronic instabilities in the honeycomb lattice is widely investigated. Some early studies proposed the emergence of interaction-induced topologically nontrivial phases, but recen
Externí odkaz:
http://arxiv.org/abs/1904.04482
Publikováno v:
Eur. Phys. J. B 92, 90 (2019)
We study the thermoelectric transport through a single-level quantum dot (QD) coupled to two normal metallic leads and side-coupled to Majorana bound state (MBS). The Coulomb interaction in QD is considered. To investigate only the influence of MBS o
Externí odkaz:
http://arxiv.org/abs/1810.03161
Publikováno v:
Int. J. Mod. Phys. B 33, 1950105 (2019)
In this paper we calculate ab initially the phonon dispersion relationship of the superconductor LaFeAsO and investigate a main property in the superconductor, the oxygen isotope effect. Based on this phonon dispersion relationship, we find the fact
Externí odkaz:
http://arxiv.org/abs/1808.07201
A new approach for calculating spectral density functions of strongly correlated electron systems is proposed within the exact diagonalization method of dynamical mean-field theory (DMFT). This approach is based on the analytic continuation of spectr
Externí odkaz:
http://arxiv.org/abs/1610.01005
We present an approach for determining susceptibilities and order parameters in multi-band Hubbard model within functional renormalization group method, and apply it to study various instabilities of the FeAs-based high temperature superconductor. Fi
Externí odkaz:
http://arxiv.org/abs/1310.0646
In this paper we develop a new discrete method for calculating the dielectric tensor and Born effective charge tensor in finite electric field by using Berry's phase and the gauge invariance. We present a new method to overcome non-periodicity of the
Externí odkaz:
http://arxiv.org/abs/1307.5598
In this paper, we discuss spin transport in topological insulator (TI) and diluted magnetic semiconductor (DMS) heterogeneous structures. In DMS / FM (Ferromagnetic Metal) heterogeneous structure, the spin injection efficiency changes according to th
Externí odkaz:
http://arxiv.org/abs/1209.2481
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