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dc.creatorTahir, Muhammad
dc.creatorKrstajić, Predrag
dc.creatorVasilopoulos, Panagiotis
dc.date.accessioned2019-01-30T17:56:13Z
dc.date.available2019-01-30T17:56:13Z
dc.date.issued2017
dc.identifier.issn2469-9950
dc.identifier.urihttp://cer.ihtm.bg.ac.rs/handle/123456789/2236
dc.description.abstractThe recent experimental realization of high-quality WSe2 leads to the possibility of an efficient manipulation of its spin and valley degrees of freedom. Its electronic properties comprise a huge spin-orbit coupling, a direct band gap, and a strong anisotropic lifting of the degeneracy of the valley degree of freedom in a magnetic field. We evaluate its band structure and study ballistic electron transport through single and double junctions (or barriers) on monolayer WSe2 in the presence of spin M-s and valley M-v Zeeman fields and of an electric potential U. The conductance versus the field Ms or Mv decreases in a fluctuating manner. For a single junction, the spin P-s and valley P-v polarizations rise with M = M-v = 2M(s), reach a value of more than 55%, and become perfect above U approximate to 45 meV while for a double junction this change can occur for U >= 50 meV and M >= 5 meV. In certain regions of the (M, U) plane P-v becomes perfect. The conductance g(c), its spin-up and spin-down components, and both polarizations oscillate with the barrier width d. The ability to isolate various carrier degrees of freedom in WSe2 may render it a promising candidate for new spintronic and valleytronic devices.en
dc.publisherAmer Physical Soc, College Pk
dc.relationUniversity of Hafr Al Batin
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/32008/RS//
dc.relationCanadian NSERC - OGP0121756
dc.rightsopenAccess
dc.sourcePhysical Review B
dc.titleMagnetic and electric control of spin- and valley-polarized transport across tunnel junctions on monolayer WSe2en
dc.typearticle
dc.rights.licenseARR
dcterms.abstractТахир, М.; Василопоулос, П.; Крстајић, Предраг;
dc.citation.volume95
dc.citation.issue23
dc.citation.other95(23):
dc.citation.rankM21
dc.identifier.doi10.1103/PhysRevB.95.235402
dc.identifier.rcubConv_3732
dc.identifier.fulltexthttp://cer.ihtm.bg.ac.rs/bitstream/id/8631/2234.pdf
dc.identifier.scopus2-s2.0-85024371237
dc.identifier.wos000402467200007
dc.type.versionpublishedVersion


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