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Article: Single-layer Mo5Te8 — A new polymorph of layered transition-metal chalcogenide

TitleSingle-layer Mo5Te8 — A new polymorph of layered transition-metal chalcogenide
Authors
KeywordsMBE
Polymorphism
STM
Transition-metal chalcogenides
Two-dimensional materials
Issue Date2020
PublisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2053-1583/
Citation
2D Materials, 2020, v. 8 n. 1, p. article no. 015006 How to Cite?
AbstractSingle-layer (SL) transition-metal chalcogenides (TMCs) represent an important family of two-dimensional (2D) materials that have attracted intensive research attention recently. It has been established that many TMCs are polymorphic that can exist in different crystal structures and correspondingly exhibit diverse physical properties. Discovery of new structural phases of a crystal is of great scientific and practical importance. In this work, we report a new polymorph of SL-TMC, i.e. SL-Mo5Te8, attained by molecular-beam epitaxy (MBE). Like the 1H-MoTe2, it possesses the hexagonal symmetry but a much larger unit cell with a basis containing as many as 39 atoms (15 Mo and 24 Te). We call it the variational hexagonal (v1H) phase. Coincidently, it may be viewed also as one containing the highest density possible of mirror-twin domain boundaries (MTBs) in an otherwise pristine 1H-MoTe2. Electronically, it is metallic and a comparison between theory and experiments of its density-of-states (DOS) at the Fermi level reveals features pointing to an importance of electron interactions that invites further investigations.
Persistent Identifierhttp://hdl.handle.net/10722/289329
ISSN
2020 Impact Factor: 7.103
2015 SCImago Journal Rankings: 4.344
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorZhang, J-
dc.contributor.authorXia, Y-
dc.contributor.authorWang, B-
dc.contributor.authorJIN, Y-
dc.contributor.authorTian, H-
dc.contributor.authorHo, WK-
dc.contributor.authorXu, H-
dc.contributor.authorJin, C-
dc.contributor.authorXie, M-
dc.date.accessioned2020-10-22T08:11:06Z-
dc.date.available2020-10-22T08:11:06Z-
dc.date.issued2020-
dc.identifier.citation2D Materials, 2020, v. 8 n. 1, p. article no. 015006-
dc.identifier.issn2053-1583-
dc.identifier.urihttp://hdl.handle.net/10722/289329-
dc.description.abstractSingle-layer (SL) transition-metal chalcogenides (TMCs) represent an important family of two-dimensional (2D) materials that have attracted intensive research attention recently. It has been established that many TMCs are polymorphic that can exist in different crystal structures and correspondingly exhibit diverse physical properties. Discovery of new structural phases of a crystal is of great scientific and practical importance. In this work, we report a new polymorph of SL-TMC, i.e. SL-Mo5Te8, attained by molecular-beam epitaxy (MBE). Like the 1H-MoTe2, it possesses the hexagonal symmetry but a much larger unit cell with a basis containing as many as 39 atoms (15 Mo and 24 Te). We call it the variational hexagonal (v1H) phase. Coincidently, it may be viewed also as one containing the highest density possible of mirror-twin domain boundaries (MTBs) in an otherwise pristine 1H-MoTe2. Electronically, it is metallic and a comparison between theory and experiments of its density-of-states (DOS) at the Fermi level reveals features pointing to an importance of electron interactions that invites further investigations.-
dc.languageeng-
dc.publisherInstitute of Physics Publishing Ltd. The Journal's web site is located at http://iopscience.iop.org/2053-1583/-
dc.relation.ispartof2D Materials-
dc.rights2D Materials. Copyright © Institute of Physics Publishing Ltd.-
dc.rightsThis is an author-created, un-copyedited version of an article published in [insert name of journal]. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/[insert DOI].-
dc.subjectMBE-
dc.subjectPolymorphism-
dc.subjectSTM-
dc.subjectTransition-metal chalcogenides-
dc.subjectTwo-dimensional materials-
dc.titleSingle-layer Mo5Te8 — A new polymorph of layered transition-metal chalcogenide-
dc.typeArticle-
dc.identifier.emailZhang, J: jqzhang1@hku.hk-
dc.identifier.emailXia, Y: xiayp@hku.hk-
dc.identifier.emailTian, H: htian@HKUCC-COM.hku.hk-
dc.identifier.emailHo, WK: howk@hku.hk-
dc.identifier.emailXie, M: mhxie@hku.hk-
dc.identifier.authorityXie, M=rp00818-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1088/2053-1583/abbc60-
dc.identifier.scopuseid_2-s2.0-85094820934-
dc.identifier.hkuros317376-
dc.identifier.volume8-
dc.identifier.issue1-
dc.identifier.spagearticle no. 015006-
dc.identifier.epagearticle no. 015006-
dc.identifier.isiWOS:000577197100001-
dc.publisher.placeUnited Kingdom-
dc.identifier.issnl2053-1583-

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