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Band Polarization Effect on the Kondo State in a Zigzag Silicene Nanoribbon.
Diniz, Ginetom S; Vernek, Edson; Martins, George B.
Afiliação
  • Diniz GS; Curso de Física, Universidade Federal de Jataí, Jataí 75801-615, GO, Brazil.
  • Vernek E; Instituto de Física, Universidade Federal de Uberlândia, Uberlândia 38400-902, MG, Brazil.
  • Martins GB; Instituto de Física, Universidade Federal de Uberlândia, Uberlândia 38400-902, MG, Brazil.
Nanomaterials (Basel) ; 12(9)2022 Apr 27.
Article em En | MEDLINE | ID: mdl-35564189
Using the Numerical Renormalization Group method, we study the properties of a quantum impurity coupled to a zigzag silicene nanoribbon (ZSNR) that is subjected to the action of a magnetic field applied in a generic direction. We propose a simulation of what a scanning tunneling microscope will see when investigating the Kondo peak of a magnetic impurity coupled to the metallic edge of this topologically non-trivial nanoribbon. This system is subjected to an external magnetic field that polarizes the host much more strongly than the impurity. Thus, we are indirectly analyzing the ZSNR polarization through the STM analysis of the fate of the Kondo state subjected to the influence of the polarized conduction electron band. Our numerical simulations demonstrate that the spin-orbit-coupling-generated band polarization anisotropy is strong enough to have a qualitative effect on the Kondo peak for magnetic fields applied along different directions, suggesting that this contrast could be experimentally detected.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Qualitative_research Idioma: En Revista: Nanomaterials (Basel) Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Tipo de estudo: Qualitative_research Idioma: En Revista: Nanomaterials (Basel) Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Suíça