Signature of Miniband Nodes in Magneto-Optical Properties of One-Dimensional Superlattice of Planar Quantum Rings

8 Pages Posted: 18 May 2022

See all articles by Vram Mughnetsyan

Vram Mughnetsyan

Yerevan State University

Maryam Mansoury

Urmia University of Technology

Vigen Aziz-Aghchegala

Urmia University of Technology

Albert Kirakosyan

Yerevan State University

Vidar Gudmundsson

affiliation not provided to SSRN

Abstract

The effect of transverse magnetic field on the band structure, magnetization and inter-miniband magnetoabsorption of a one-dimensional superlattice of planar quantum rings is discussed. The band structure calculations are made in the framework of diagonalization procedure. A complete set of basis functions, reflecting the structure periodicity in superlattice direction and the effect of magnetic field is constructed, considering the Landau gauge of the vector potential in the Hamiltonian. It is shown that the energy minibands reveal repeating nodes that correspond to a degeneration of quantum states. The magnetization of the system mimics the main peculiarities of the same quantity for a single QR, however considerable differences are observed as well. The examination of the magnetoasborption indicates on the possibility to extract an information about the existence of nodes in the band structure and the arrangement of quantum states in the neighboring minibands. The effect of

Keywords: quntum ring, one dimensional superlattice, Magnetic field, miniband nodes, magnetization, magneto-absorption

Suggested Citation

Mughnetsyan, Vram and Mansoury, Maryam and Aziz-Aghchegala, Vigen and Kirakosyan, Albert and Gudmundsson, Vidar, Signature of Miniband Nodes in Magneto-Optical Properties of One-Dimensional Superlattice of Planar Quantum Rings. Available at SSRN: https://ssrn.com/abstract=4112846 or http://dx.doi.org/10.2139/ssrn.4112846

Vram Mughnetsyan (Contact Author)

Yerevan State University ( email )

Yerevan, 375025
Armenia

Maryam Mansoury

Urmia University of Technology ( email )

Urmia
Iran

Vigen Aziz-Aghchegala

Urmia University of Technology ( email )

Urmia
Iran

Albert Kirakosyan

Yerevan State University ( email )

Yerevan, 375025
Armenia

Vidar Gudmundsson

affiliation not provided to SSRN ( email )

No Address Available

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