Chiral magnetic chemical bonds in molecular states of impurities in Weyl semimetals

Abstract We demonstrate that chirality of the electron scattering in Weyl semimetals leads to the formation of magnetic chemical bonds for molecular states of a pair of impurities. The effect is associated with the presence of time-reversal symmetry breaking terms in the Hamiltonian which drive a cr...

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Autores principales:	Y. Marques, W. N. Mizobata, R. S. Oliveira, M. de Souza, M. S. Figueira, I. A. Shelykh, A. C. Seridonio
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2019
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4113f13b071e48f584cea78dbc07a8f7
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spelling	oai:doaj.org-article:4113f13b071e48f584cea78dbc07a8f72021-12-02T15:09:49ZChiral magnetic chemical bonds in molecular states of impurities in Weyl semimetals10.1038/s41598-019-44842-82045-2322https://doaj.org/article/4113f13b071e48f584cea78dbc07a8f72019-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-019-44842-8https://doaj.org/toc/2045-2322Abstract We demonstrate that chirality of the electron scattering in Weyl semimetals leads to the formation of magnetic chemical bonds for molecular states of a pair of impurities. The effect is associated with the presence of time-reversal symmetry breaking terms in the Hamiltonian which drive a crossover from s- to p-wave scattering. The profiles of the corresponding molecular orbitals and their spin polarizations are defined by the relative orientation of the lines connecting two Weyl nodes and two impurities. The magnetic character of the molecular orbitals and their tunability open the way for using doped Weyl semimetals for spintronics and realization of qubits.Y. MarquesW. N. MizobataR. S. OliveiraM. de SouzaM. S. FigueiraI. A. ShelykhA. C. SeridonioNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 9, Iss 1, Pp 1-9 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Y. Marques W. N. Mizobata R. S. Oliveira M. de Souza M. S. Figueira I. A. Shelykh A. C. Seridonio Chiral magnetic chemical bonds in molecular states of impurities in Weyl semimetals
description	Abstract We demonstrate that chirality of the electron scattering in Weyl semimetals leads to the formation of magnetic chemical bonds for molecular states of a pair of impurities. The effect is associated with the presence of time-reversal symmetry breaking terms in the Hamiltonian which drive a crossover from s- to p-wave scattering. The profiles of the corresponding molecular orbitals and their spin polarizations are defined by the relative orientation of the lines connecting two Weyl nodes and two impurities. The magnetic character of the molecular orbitals and their tunability open the way for using doped Weyl semimetals for spintronics and realization of qubits.
format	article
author	Y. Marques W. N. Mizobata R. S. Oliveira M. de Souza M. S. Figueira I. A. Shelykh A. C. Seridonio
author_facet	Y. Marques W. N. Mizobata R. S. Oliveira M. de Souza M. S. Figueira I. A. Shelykh A. C. Seridonio
author_sort	Y. Marques
title	Chiral magnetic chemical bonds in molecular states of impurities in Weyl semimetals
title_short	Chiral magnetic chemical bonds in molecular states of impurities in Weyl semimetals
title_full	Chiral magnetic chemical bonds in molecular states of impurities in Weyl semimetals
title_fullStr	Chiral magnetic chemical bonds in molecular states of impurities in Weyl semimetals
title_full_unstemmed	Chiral magnetic chemical bonds in molecular states of impurities in Weyl semimetals
title_sort	chiral magnetic chemical bonds in molecular states of impurities in weyl semimetals
publisher	Nature Portfolio
publishDate	2019
url	https://doaj.org/article/4113f13b071e48f584cea78dbc07a8f7
work_keys_str_mv	AT ymarques chiralmagneticchemicalbondsinmolecularstatesofimpuritiesinweylsemimetals AT wnmizobata chiralmagneticchemicalbondsinmolecularstatesofimpuritiesinweylsemimetals AT rsoliveira chiralmagneticchemicalbondsinmolecularstatesofimpuritiesinweylsemimetals AT mdesouza chiralmagneticchemicalbondsinmolecularstatesofimpuritiesinweylsemimetals AT msfigueira chiralmagneticchemicalbondsinmolecularstatesofimpuritiesinweylsemimetals AT iashelykh chiralmagneticchemicalbondsinmolecularstatesofimpuritiesinweylsemimetals AT acseridonio chiralmagneticchemicalbondsinmolecularstatesofimpuritiesinweylsemimetals
_version_	1718387746848899072

Chiral magnetic chemical bonds in molecular states of impurities in Weyl semimetals

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