Research Paper: Magnetization Plateaus and Magnetization Jumps in Quantum Dots of Boron Triangular Kagome Lattices

Document Type : Research Paper

Authors

1 Assistant Professor, Department of Physics, Yasouj University, Yasouj, Iran

2 Assistant Professor, Department of Physics, Yasouj University, Yasouj, Iran.

Abstract

An investigation of the modern phenomena of condensed matter physics, called, magnetization plateau and magnetization jump, visible as anomalies in spin susceptibility at zero temperature, have been carried out theoretically in a zero-dimensional boron triangular Kagome lattice (0D-BTKL), namely quantum dots of BTKL, subjected to a staggering sublattice potential. By analyzing the Ruderman-Kittel-Kasuya-Yoshida (RKKY) interaction, the magnetic ground state of the 0D-TKL in the presence of two magnetic adatoms, in the presence of a staggered sublattice potential is evaluated. The important salient feature of the 0D-BTKLs is the emergence of the RKKY plateaus versus the Fermi energy. The spatial configurations of the magnetic impurities dramatically change the quality and quantity of the RKKY plateaus. These RKKY plateaus have not been reported before, to the best of our knowledge. Our finite-size results successfully confirm that both the width and location of the RKKY plateaus are tunable using an external potential and Fermi energy. Another remarkable observation is the nontrivial behavior, namely the magnetization jump, which accompanies the discontinuity in the spin susceptibility curves versus the staggering potential in our calculations. We believe that our results provide significant insights towards designing further experiments to search for the realization of the magnetization plateau phases and magnetization jumps in spintronics and pseudospin electronics devices based on BTKLs.

Keywords

Main Subjects

References

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  • Receive Date: 16 December 2021
  • Revise Date: 03 March 2022
  • Accept Date: 09 April 2022

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