Effect of Dilute Magnetism in a Topological Insulator

Three-dimensional (3D) topological insulator (TI) has emerged as a unique state of quantum matter and generated enormous interests in condensed matter physics. The surfaces of a 3D TI consist of a massless Dirac cone, which is characterized by the Z2 topological invariant. Introduction of magnetism...

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Autores principales:	Firoza Kabir, M. Mofazzel Hosen, Xiaxin Ding, Christopher Lane, Gyanendra Dhakal, Yangyang Liu, Klauss Dimitri, Christopher Sims, Sabin Regmi, Anup Pradhan Sakhya, Luis Persaud, John E. Beetar, Yong Liu, Michael Chini, Arjun K. Pathak, Jian-Xin Zhu, Krzysztof Gofryk, Madhab Neupane
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	Angle resolved photoemission spectroscopy (ARPES) magnetism topologial insulator gadolinium-doped doping Dirac state Technology T
Acceso en línea:	https://doaj.org/article/0565465dd343402b9ce27033868fdae5
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spelling	oai:doaj.org-article:0565465dd343402b9ce27033868fdae52021-11-30T22:07:05ZEffect of Dilute Magnetism in a Topological Insulator2296-801610.3389/fmats.2021.706658https://doaj.org/article/0565465dd343402b9ce27033868fdae52021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmats.2021.706658/fullhttps://doaj.org/toc/2296-8016Three-dimensional (3D) topological insulator (TI) has emerged as a unique state of quantum matter and generated enormous interests in condensed matter physics. The surfaces of a 3D TI consist of a massless Dirac cone, which is characterized by the Z2 topological invariant. Introduction of magnetism on the surface of a TI is essential to realize the quantum anomalous Hall effect and other novel magneto-electric phenomena. Here, by using a combination of first-principles calculations, magneto-transport and angle-resolved photoemission spectroscopy (ARPES), we study the electronic properties of gadolinium (Gd)-doped Sb2Te3. Our study shows that Gd doped Sb2Te3 is a spin-orbit-induced bulk band-gap material, whose surface is characterized by a single topological surface state. Our results provide a new platform to investigate the interactions between dilute magnetism and topology in magnetic doped topological materials.Firoza KabirM. Mofazzel HosenXiaxin DingChristopher LaneChristopher LaneGyanendra DhakalYangyang LiuKlauss DimitriChristopher SimsSabin RegmiAnup Pradhan SakhyaLuis PersaudJohn E. BeetarYong LiuYong LiuMichael ChiniArjun K. PathakJian-Xin ZhuJian-Xin ZhuKrzysztof GofrykMadhab NeupaneFrontiers Media S.A.articleAngle resolved photoemission spectroscopy (ARPES)magnetismtopologial insulatorgadolinium-dopeddopingDirac stateTechnologyTENFrontiers in Materials, Vol 8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Angle resolved photoemission spectroscopy (ARPES) magnetism topologial insulator gadolinium-doped doping Dirac state Technology T
spellingShingle	Angle resolved photoemission spectroscopy (ARPES) magnetism topologial insulator gadolinium-doped doping Dirac state Technology T Firoza Kabir M. Mofazzel Hosen Xiaxin Ding Christopher Lane Christopher Lane Gyanendra Dhakal Yangyang Liu Klauss Dimitri Christopher Sims Sabin Regmi Anup Pradhan Sakhya Luis Persaud John E. Beetar Yong Liu Yong Liu Michael Chini Arjun K. Pathak Jian-Xin Zhu Jian-Xin Zhu Krzysztof Gofryk Madhab Neupane Effect of Dilute Magnetism in a Topological Insulator
description	Three-dimensional (3D) topological insulator (TI) has emerged as a unique state of quantum matter and generated enormous interests in condensed matter physics. The surfaces of a 3D TI consist of a massless Dirac cone, which is characterized by the Z2 topological invariant. Introduction of magnetism on the surface of a TI is essential to realize the quantum anomalous Hall effect and other novel magneto-electric phenomena. Here, by using a combination of first-principles calculations, magneto-transport and angle-resolved photoemission spectroscopy (ARPES), we study the electronic properties of gadolinium (Gd)-doped Sb2Te3. Our study shows that Gd doped Sb2Te3 is a spin-orbit-induced bulk band-gap material, whose surface is characterized by a single topological surface state. Our results provide a new platform to investigate the interactions between dilute magnetism and topology in magnetic doped topological materials.
format	article
author	Firoza Kabir M. Mofazzel Hosen Xiaxin Ding Christopher Lane Christopher Lane Gyanendra Dhakal Yangyang Liu Klauss Dimitri Christopher Sims Sabin Regmi Anup Pradhan Sakhya Luis Persaud John E. Beetar Yong Liu Yong Liu Michael Chini Arjun K. Pathak Jian-Xin Zhu Jian-Xin Zhu Krzysztof Gofryk Madhab Neupane
author_facet	Firoza Kabir M. Mofazzel Hosen Xiaxin Ding Christopher Lane Christopher Lane Gyanendra Dhakal Yangyang Liu Klauss Dimitri Christopher Sims Sabin Regmi Anup Pradhan Sakhya Luis Persaud John E. Beetar Yong Liu Yong Liu Michael Chini Arjun K. Pathak Jian-Xin Zhu Jian-Xin Zhu Krzysztof Gofryk Madhab Neupane
author_sort	Firoza Kabir
title	Effect of Dilute Magnetism in a Topological Insulator
title_short	Effect of Dilute Magnetism in a Topological Insulator
title_full	Effect of Dilute Magnetism in a Topological Insulator
title_fullStr	Effect of Dilute Magnetism in a Topological Insulator
title_full_unstemmed	Effect of Dilute Magnetism in a Topological Insulator
title_sort	effect of dilute magnetism in a topological insulator
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/0565465dd343402b9ce27033868fdae5
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Effect of Dilute Magnetism in a Topological Insulator

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