Electronic structures and stability of Ni/Bi2Te3 and Co/Bi2Te3 interfaces

Handle URI:
http://hdl.handle.net/10754/575538
Title:
Electronic structures and stability of Ni/Bi2Te3 and Co/Bi2Te3 interfaces
Authors:
Xiong, Ka; Wang, Weichao; Alshareef, Husam N. ( 0000-0001-5029-2142 ) ; Gupta, Rahul P.; White, John B.; Gnade, Bruce E.; Cho, Kyeongjae
Abstract:
We investigate the electronic structures and stability for Ni/Bi 2Te3, NiTe/Bi2Te3, Co/Bi 2Te3 and CoTe2/Bi2Te3 interfaces by first-principles calculations. It is found that the surface termination strongly affects the band alignment. Ni and Co are found to form Ohmic contacts to Bi2Te3. The interface formation energy for Co/Bi2Te3 interfaces is much lower than that of Ni/Bi2Te3 interfaces. Furthermore, we found that NiTe on Bi2Te3 is more stable than Ni, while the formation energies for Co and CoTe2 on Bi2Te3 are comparable. © 2010 IOP Publishing Ltd.
KAUST Department:
Materials Science and Engineering Program; Physical Sciences and Engineering (PSE) Division; Functional Nanomaterials and Devices Research Group
Publisher:
IOP Publishing
Journal:
Journal of Physics D: Applied Physics
Issue Date:
4-Mar-2010
DOI:
10.1088/0022-3727/43/11/115303
Type:
Article
ISSN:
00223727
Sponsors:
This work is supported by the II-VI Foundation, a private foundation. The authors thank Dr Jeff Sharp for useful suggestions.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorXiong, Kaen
dc.contributor.authorWang, Weichaoen
dc.contributor.authorAlshareef, Husam N.en
dc.contributor.authorGupta, Rahul P.en
dc.contributor.authorWhite, John B.en
dc.contributor.authorGnade, Bruce E.en
dc.contributor.authorCho, Kyeongjaeen
dc.date.accessioned2015-08-24T08:32:15Zen
dc.date.available2015-08-24T08:32:15Zen
dc.date.issued2010-03-04en
dc.identifier.issn00223727en
dc.identifier.doi10.1088/0022-3727/43/11/115303en
dc.identifier.urihttp://hdl.handle.net/10754/575538en
dc.description.abstractWe investigate the electronic structures and stability for Ni/Bi 2Te3, NiTe/Bi2Te3, Co/Bi 2Te3 and CoTe2/Bi2Te3 interfaces by first-principles calculations. It is found that the surface termination strongly affects the band alignment. Ni and Co are found to form Ohmic contacts to Bi2Te3. The interface formation energy for Co/Bi2Te3 interfaces is much lower than that of Ni/Bi2Te3 interfaces. Furthermore, we found that NiTe on Bi2Te3 is more stable than Ni, while the formation energies for Co and CoTe2 on Bi2Te3 are comparable. © 2010 IOP Publishing Ltd.en
dc.description.sponsorshipThis work is supported by the II-VI Foundation, a private foundation. The authors thank Dr Jeff Sharp for useful suggestions.en
dc.publisherIOP Publishingen
dc.titleElectronic structures and stability of Ni/Bi2Te3 and Co/Bi2Te3 interfacesen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentFunctional Nanomaterials and Devices Research Groupen
dc.identifier.journalJournal of Physics D: Applied Physicsen
dc.contributor.institutionMaterials Science and Engineering Department, University of Texas at Dallas, Richardson, TX 75080, United Statesen
dc.contributor.institutionMarlow Industries, 10451 Vista Park Road, Dallas, TX 75238, United Statesen
dc.contributor.institutionPhysics Department, University of Texas at Dallas, Richardson, TX 75080, United Statesen
kaust.authorAlshareef, Husam N.en
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