Realization of nodal ring semimetal in pressurized black phosphorus

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Bibliographic Details
Main Authors:	Akiba, Kazuto, Akahama, Yuichi, Tokunaga, Masashi, Kobayashi, Tatsuo C.
Format:	Preprint
Published:	2024
Subjects:	Strongly Correlated Electrons Materials Science
Online Access:	Acceder al recurso
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_version_	1866915378331910144
author	Akiba, Kazuto Akahama, Yuichi Tokunaga, Masashi Kobayashi, Tatsuo C.
author_facet	Akiba, Kazuto Akahama, Yuichi Tokunaga, Masashi Kobayashi, Tatsuo C.
contents	Topological semimetals are intriguing targets for exploring unconventional physical properties of massless fermions. Among them, nodal line or nodal ring semimetals have attracted attention for their unique one-dimensional band contact in momentum space and resulting nontrivial quantum phenomena. By field angular resolved magnetotransport measurements and theoretical calculations, we show that pressurized black phosphorus (BP) is an ideal nodal ring semimetal with weak spin-orbit coupling, which has a sole and carrier density-tunable nodal ring isolated from other trivial bands. We also revealed that the large magnetoresistance effect and its field-angular dependence in semimetallic BP are due to highly anisotropic relaxation time. Our results establish pressurized BP as an elemental model material for exploring nontrivial quantum properties unique to the topological nodal ring.
format	Preprint
id	arxiv_https___arxiv_org_abs_2404_10192
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	Realization of nodal ring semimetal in pressurized black phosphorus Akiba, Kazuto Akahama, Yuichi Tokunaga, Masashi Kobayashi, Tatsuo C. Strongly Correlated Electrons Materials Science Topological semimetals are intriguing targets for exploring unconventional physical properties of massless fermions. Among them, nodal line or nodal ring semimetals have attracted attention for their unique one-dimensional band contact in momentum space and resulting nontrivial quantum phenomena. By field angular resolved magnetotransport measurements and theoretical calculations, we show that pressurized black phosphorus (BP) is an ideal nodal ring semimetal with weak spin-orbit coupling, which has a sole and carrier density-tunable nodal ring isolated from other trivial bands. We also revealed that the large magnetoresistance effect and its field-angular dependence in semimetallic BP are due to highly anisotropic relaxation time. Our results establish pressurized BP as an elemental model material for exploring nontrivial quantum properties unique to the topological nodal ring.
title	Realization of nodal ring semimetal in pressurized black phosphorus
topic	Strongly Correlated Electrons Materials Science
url	https://arxiv.org/abs/2404.10192

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