Zobrazeno 1 - 10
of 629
pro vyhledávání: '"Niţă M"'
Autor:
Nita Madona Sulanti, 馬朵娜
95
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/04970915042003490871
Publikováno v:
Phys. Rev. B 103, 125307 (2021)
Destructive quantum interference (DQI) and its effects on electron transport is studied in chemical molecules and finite physical lattices that can be described by a discrete Hamiltonian. Starting from a bipartite system whose conductance zeros are k
Externí odkaz:
http://arxiv.org/abs/2103.15082
Publikováno v:
Phys. Rev. B 101, 235318 (2020)
Within the Landauer transport formalism we demonstrate that conductance zeroes are possible in bipartite systems at half-filling when leads are contacted to different sublattice sites. In particular, we investigate the application of this theory to g
Externí odkaz:
http://arxiv.org/abs/2007.04700
Publikováno v:
Phys. Rev. B 98, 125403 (2018)
The understanding of the Chern insulator and anomalous quantum Hall effect (AQHE) in terms of chiral edge states in confined systems is the first aim of the paper. The model we use consists in a diatomic square lattice with hopping to the next-neares
Externí odkaz:
http://arxiv.org/abs/1805.05079
We study the validity of Hund's first rule for the spin multiplicity in circular molecules - made of real or artificial atoms such as quantum dots - by considering a perturbative approach in the Coulomb interaction in the extended Hubbard model with
Externí odkaz:
http://arxiv.org/abs/1711.06001
We develop a manifest non-Hermitian approach of spectral and transport properties of two- dimensional mesoscopic systems in strong magnetic field. The finite system to which several ter- minals are attached constitutes an open system that can be desc
Externí odkaz:
http://arxiv.org/abs/1611.05687
Publikováno v:
Phys.Rev.B. 94, 165103 (2016)
We present detailed spectral calculations for small Lieb lattices having up to $N=4$ number of cells, in the regime of half-filling, an instance of particular relevance for the nano-magnetism of discrete systems such as quantum dot arrays, due to the
Externí odkaz:
http://arxiv.org/abs/1610.03099
Akademický článek
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Akademický článek
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We investigate new properties of the Dirac electrons in the finite graphene sample under perpendicular magnetic field that emerge when an in-plane electric bias is also applied. The numerical analysis of the Hofstadter spectrum and of the edge-type w
Externí odkaz:
http://arxiv.org/abs/1411.7808