Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/159394
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dc.contributor.authorLi, Peilingen_US
dc.contributor.authorDeng, Yaen_US
dc.contributor.authorHsu, Chuang-Hanen_US
dc.contributor.authorZhu, Chaoen_US
dc.contributor.authorCui, Jianen_US
dc.contributor.authorYang, Xueen_US
dc.contributor.authorZhou, Jiadongen_US
dc.contributor.authorHung, Yi-Chunen_US
dc.contributor.authorFan, Jieen_US
dc.contributor.authorJi, Zhongqingen_US
dc.contributor.authorQu, Fanmingen_US
dc.contributor.authorShen, Jieen_US
dc.contributor.authorYang, Changlien_US
dc.contributor.authorJing, Xiunianen_US
dc.contributor.authorLin, Hsinen_US
dc.contributor.authorLiu, Zhengen_US
dc.contributor.authorLu, Lien_US
dc.contributor.authorLiu, Guangtongen_US
dc.date.accessioned2022-06-21T01:25:57Z-
dc.date.available2022-06-21T01:25:57Z-
dc.date.issued2021-
dc.identifier.citationLi, P., Deng, Y., Hsu, C., Zhu, C., Cui, J., Yang, X., Zhou, J., Hung, Y., Fan, J., Ji, Z., Qu, F., Shen, J., Yang, C., Jing, X., Lin, H., Liu, Z., Lu, L. & Liu, G. (2021). Dimensionality-dependent type-II Weyl semimetal state in Mo₀.₂₅W₀.₇₅Te₂. Physical Review B, 104(8), 085423-. https://dx.doi.org/10.1103/PhysRevB.104.085423en_US
dc.identifier.issn2469-9950en_US
dc.identifier.urihttps://hdl.handle.net/10356/159394-
dc.description.abstractWeyl nodes and Fermi arcs in type-II Weyl semimetals (WSMs) have led to lots of exotic transport phenomena. Recently, Mo$_{0.25}$W$_{0.75}$Te$_{2}$ has been established as a type-II WSM with Weyl points located near Fermi level, which offers an opportunity to study its intriguing band structure by electrical transport measurements. Here, by selecting a special sample with the thickness gradient across two- (2D) and three-dimensional (3D) regime, we show strong evidences that Mo$_{0.25}$W$_{0.75}$Te$_{2}$ is a type-II Weyl semimetal by observing the following two dimensionality-dependent transport features: 1) A chiral-anomaly-induced anisotropic magneto-conductivity enhancement, proportional to the square of in-plane magnetic field (B$_{in}$$^{2}$); 2) An additional quantum oscillation with thickness-dependent phase shift. Our theoretical calculations show that the observed quantum oscillation originates from a Weyl-orbit-like scenario due to the unique band structure of Mo$_{0.25}$W$_{0.75}$Te$_{2}$. The in situ dimensionality-tuned transport experiment offers a new strategy to search for type-II WSMs.en_US
dc.description.sponsorshipMinistry of Education (MOE)en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.language.isoenen_US
dc.relationRG4/17en_US
dc.relationMOE2016-T2-1-131en_US
dc.relationNRF-NRFF2013-08en_US
dc.relationMOE2017-T2-2-136en_US
dc.relationMOE2018-T3-1-002en_US
dc.relationNRF-CRP21-2018-0007en_US
dc.relationNRF-CRP22-2019-0060en_US
dc.relation.ispartofPhysical Review Ben_US
dc.rights© 2021 American Physical Society. All rights reserved. This paper was published in Physical Review B and is made available with permission of American Physical Society.en_US
dc.subjectEngineering::Materialsen_US
dc.titleDimensionality-dependent type-II Weyl semimetal state in Mo₀.₂₅W₀.₇₅Te₂en_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Materials Science and Engineeringen_US
dc.identifier.doi10.1103/PhysRevB.104.085423-
dc.description.versionSubmitted/Accepted versionen_US
dc.identifier.scopus2-s2.0-85114022146-
dc.identifier.issue8en_US
dc.identifier.volume104en_US
dc.identifier.spage085423en_US
dc.subject.keywordsIn-Plane Magnetic Fieldsen_US
dc.subject.keywordsElectrical Transport Measurementsen_US
dc.description.acknowledgementThis work has been supported by the National Basic Research Program of China from the MOST under Grants No. 2016YFA0300601 and No. 2015CB921402; by the National Natural Science Foundation of China under Grants No. 11527806 and No. 11874406; by the Beijing Municipal Science & Technology Commission of China under Grant No. Z191100007219008; by Beijing Academy of Quantum Information Sciences under Grant No. Y18G08; by the Strategic Priority Research Program of the Chinese Academy of Sciences under Grant No. XDB33010300; and by the Synergic Extreme Condition User Facility. Research in Singapore was financially supported by MOE Tier 1 Grant No. RG4/17, MOE Tier 2 Grant No. MOE2016-T2-1-131, and Singapore National Research Foundation under NRF Award No. NRFNRFF2013-08. This research was supported by the Singapore Ministry of Education under its Tier 2 MOE2017-T2-2-136, Tier 3 MOE2018-T3-1-002, and by the National Research Foundation under its Singapore program NRF-CRP21-2018- 0007 and NRF-CRP22-2019-0060. H.L. acknowledges the support by the Ministry of Science and Technology (MOST) in Taiwan under Grant No. MOST 109-2112-M-001-014- MY3.en_US
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