23 citations · 128 across the 18 of their papers we have counts for
10 papers · 1 filter
From Chern to Winding: Topological Invariant Correspondence in the Reduced Haldane Model
Ghassan Al-Mahmood, Mohsen Amini, Ebrahim Ghanbari-Adivi +1
We present an exact analytical investigation of the topological properties and edge states of the Haldane model defined on a honeycomb lattice with zigzag edges. By exploiting tran…
Vacancy-induced localized modes and impurity band formation in the Haldane model: a quantum dot analogy
Hussein Alshuwaili, Zahra Noorinejad, Mohsen Amini +2
In this study, the Haldane model's edge states are utilized to illustrate that a zero-energy localized state forms around a single vacancy in the model. In order to complete this t…
Backscattering of topologically protected helical edge states by line defects
Mohadese Karimi, Mohsen Amini, Morteza Soltani +1
The quantization of conductance in the presence of non-magnetic point defects is a consequence of topological protection and the spin-momentum locking of helical edge states in two…
Rigorous analysis of the topologically protected edge states in the quantum spin Hall phase of the armchair ribbon geometry
Mozhgan Sadeghizadeh, Morteza Soltani, Mohsen Amini
Studying the edge states of a topological system and extracting their topological properties is of great importance in understanding and characterizing these systems. In this paper…
Explicit derivation of the chiral and (generic) helical edge states for the Kane-Mele model: Closed expressions for the wave function, dispersion relation, and spin rotation
Fatemeh Rahmati, Mohsen Amini, Morteza Soltani +1
While one of the most important and intriguing features of the topological insulators is the presence of edge states, the closed-form expressions for the edge states of some famous…
Enhanced thermoelectric efficiency of zigzag bilayer phosphorene nanoribbon; edge states engineering
Shima Sodagar, Hossein Karbaschi, Morteza Soltani +1
We theoretically investigate the thermoelectric properties of zigzag bilayer phosphorene nanoribbons (ZBPNR). We first, draw an analogy between the extended Su-Schrieffer-Heeger (S…
Thermoelectric properties of armchair phosphorene nanoribbons in the presence of vacancy-induced impurity band
Mohsen Rezaei, Hossein Karbaschi, M. Amini +2
Armchair phosphorene nanoribbons (APNRs) are known to be semiconductors with an indirect bandgap. Here, we propose to introduce new states in the gap of APNRs by creating a periodi…
Double-Fano resonance in a two-level quantum system coupled to zigzag Phosphorene nanoribbon
Mohsen Amini, Morteza Soltani, Samira Baninajarian +1
Double-level quantum systems are good candidates for revealing coherent quantum transport properties. Here, we consider quantum interference effects due to the formation of a two-l…
Two-spin entanglement induced by scattering of backscattering-free chiral electrons in a chern insulator
M. Soltani, M. Amini
The existence of robust chiral edge states in a finite topologically nontrivial chern insulator is a consequence of the bulk-boundary correspondence. In this paper, we present a th…
Vacancy-induced Fano resonances in zigzag phosphorene nanoribbons
M. Amini, M. Soltani, M. Sharbafiun
Motivated by recent scanning tunneling microscopy/spectroscopy experiments on probing single vacancies in black phosphorus, we present a theory for Fano antiresonances induced by c…