Momentum-space signatures of Berry flux monopoles in the Weyl semimetal TaAs

Weyl semimetals exhibit Berry flux monopoles in momentum-space, but direct experimental evidence has remained elusive. Here, the authors reveal topologically non-trivial winding of the orbital-angular-momentum at the Weyl nodes and a chirality-dependent spin-angular-momentum of the Weyl bands, as a...

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Autores principales:	M. Ünzelmann, H. Bentmann, T. Figgemeier, P. Eck, J. N. Neu, B. Geldiyev, F. Diekmann, S. Rohlf, J. Buck, M. Hoesch, M. Kalläne, K. Rossnagel, R. Thomale, T. Siegrist, G. Sangiovanni, D. Di Sante, F. Reinert
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Science Q
Acceso en línea:	https://doaj.org/article/7a923d644c1945b89ba30c7791300355
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spelling	oai:doaj.org-article:7a923d644c1945b89ba30c77913003552021-12-02T16:04:16ZMomentum-space signatures of Berry flux monopoles in the Weyl semimetal TaAs10.1038/s41467-021-23727-32041-1723https://doaj.org/article/7a923d644c1945b89ba30c77913003552021-06-01T00:00:00Zhttps://doi.org/10.1038/s41467-021-23727-3https://doaj.org/toc/2041-1723Weyl semimetals exhibit Berry flux monopoles in momentum-space, but direct experimental evidence has remained elusive. Here, the authors reveal topologically non-trivial winding of the orbital-angular-momentum at the Weyl nodes and a chirality-dependent spin-angular-momentum of the Weyl bands, as a direct signature of the Berry flux monopoles in TaAs.M. ÜnzelmannH. BentmannT. FiggemeierP. EckJ. N. NeuB. GeldiyevF. DiekmannS. RohlfJ. BuckM. HoeschM. KalläneK. RossnagelR. ThomaleT. SiegristG. SangiovanniD. Di SanteF. ReinertNature PortfolioarticleScienceQENNature Communications, Vol 12, Iss 1, Pp 1-7 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Science Q
spellingShingle	Science Q M. Ünzelmann H. Bentmann T. Figgemeier P. Eck J. N. Neu B. Geldiyev F. Diekmann S. Rohlf J. Buck M. Hoesch M. Kalläne K. Rossnagel R. Thomale T. Siegrist G. Sangiovanni D. Di Sante F. Reinert Momentum-space signatures of Berry flux monopoles in the Weyl semimetal TaAs
description	Weyl semimetals exhibit Berry flux monopoles in momentum-space, but direct experimental evidence has remained elusive. Here, the authors reveal topologically non-trivial winding of the orbital-angular-momentum at the Weyl nodes and a chirality-dependent spin-angular-momentum of the Weyl bands, as a direct signature of the Berry flux monopoles in TaAs.
format	article
author	M. Ünzelmann H. Bentmann T. Figgemeier P. Eck J. N. Neu B. Geldiyev F. Diekmann S. Rohlf J. Buck M. Hoesch M. Kalläne K. Rossnagel R. Thomale T. Siegrist G. Sangiovanni D. Di Sante F. Reinert
author_facet	M. Ünzelmann H. Bentmann T. Figgemeier P. Eck J. N. Neu B. Geldiyev F. Diekmann S. Rohlf J. Buck M. Hoesch M. Kalläne K. Rossnagel R. Thomale T. Siegrist G. Sangiovanni D. Di Sante F. Reinert
author_sort	M. Ünzelmann
title	Momentum-space signatures of Berry flux monopoles in the Weyl semimetal TaAs
title_short	Momentum-space signatures of Berry flux monopoles in the Weyl semimetal TaAs
title_full	Momentum-space signatures of Berry flux monopoles in the Weyl semimetal TaAs
title_fullStr	Momentum-space signatures of Berry flux monopoles in the Weyl semimetal TaAs
title_full_unstemmed	Momentum-space signatures of Berry flux monopoles in the Weyl semimetal TaAs
title_sort	momentum-space signatures of berry flux monopoles in the weyl semimetal taas
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/7a923d644c1945b89ba30c7791300355
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Momentum-space signatures of Berry flux monopoles in the Weyl semimetal TaAs

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