Spin-orbit-induced spin splittings in polar transition metal dichalcogenide monolayers

Handle URI:
http://hdl.handle.net/10754/562800
Title:
Spin-orbit-induced spin splittings in polar transition metal dichalcogenide monolayers
Authors:
Cheng, Yingchun; Zhu, Zhiyong; Tahir, Muhammad; Schwingenschlögl, Udo ( 0000-0003-4179-7231 )
Abstract:
The Rashba effect in quasi two-dimensional materials, such as noble metal surfaces and semiconductor heterostructures, has been investigated extensively, while interest in real two-dimensional systems has just emerged with the discovery of graphene. We present ab initio electronic structure, phonon, and molecular-dynamics calculations to study the structural stability and spin-orbit-induced spin splitting in the transition metal dichalcogenide monolayers MXY (M = Mo, W and X, Y = S, Se, Te). In contrast to the non-polar systems with X = Y, in the polar systems with X ≠ Y the Rashba splitting at the Γ-point for the uppermost valence band is caused by the broken mirror symmetry. An enhancement of the splitting can be achieved by increasing the spin-orbit coupling and/or the potential gradient. © Copyright EPLA, 2013.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Core Labs; Computational Physics and Materials Science (CPMS)
Publisher:
IOP Publishing
Journal:
EPL (Europhysics Letters)
Issue Date:
1-Jun-2013
DOI:
10.1209/0295-5075/102/57001
Type:
Article
ISSN:
02955075
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Computational Physics and Materials Science (CPMS)

Full metadata record

DC FieldValue Language
dc.contributor.authorCheng, Yingchunen
dc.contributor.authorZhu, Zhiyongen
dc.contributor.authorTahir, Muhammaden
dc.contributor.authorSchwingenschlögl, Udoen
dc.date.accessioned2015-08-03T11:10:42Zen
dc.date.available2015-08-03T11:10:42Zen
dc.date.issued2013-06-01en
dc.identifier.issn02955075en
dc.identifier.doi10.1209/0295-5075/102/57001en
dc.identifier.urihttp://hdl.handle.net/10754/562800en
dc.description.abstractThe Rashba effect in quasi two-dimensional materials, such as noble metal surfaces and semiconductor heterostructures, has been investigated extensively, while interest in real two-dimensional systems has just emerged with the discovery of graphene. We present ab initio electronic structure, phonon, and molecular-dynamics calculations to study the structural stability and spin-orbit-induced spin splitting in the transition metal dichalcogenide monolayers MXY (M = Mo, W and X, Y = S, Se, Te). In contrast to the non-polar systems with X = Y, in the polar systems with X ≠ Y the Rashba splitting at the Γ-point for the uppermost valence band is caused by the broken mirror symmetry. An enhancement of the splitting can be achieved by increasing the spin-orbit coupling and/or the potential gradient. © Copyright EPLA, 2013.en
dc.publisherIOP Publishingen
dc.titleSpin-orbit-induced spin splittings in polar transition metal dichalcogenide monolayersen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentCore Labsen
dc.contributor.departmentComputational Physics and Materials Science (CPMS)en
dc.identifier.journalEPL (Europhysics Letters)en
kaust.authorCheng, Yingchunen
kaust.authorZhu, Zhiyongen
kaust.authorTahir, Muhammaden
kaust.authorSchwingenschlögl, Udoen
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