This title appears in the Scientific Report :
2016
Please use the identifier:
http://hdl.handle.net/2128/12515 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevLett.117.116101 in citations.
Quasi-One-Dimensional Metal-Insulator Transitions in Compound Semiconductor Surfaces
Quasi-One-Dimensional Metal-Insulator Transitions in Compound Semiconductor Surfaces
Existing examples of Peierls-type 1D systems on surfaces involve depositing metallic overlayers on semiconducting substrates, in particular, at step edges. Here we propose a new class of Peierls system on the (101¯0) surface of metal-anion wurtzite semiconductors. When the anions are bonded to hydro...
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Personal Name(s): | Zhao, J. Z. |
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Fan, W. / Verstraete, M. J. / Zanolli, Zeila / Fan, J. / Yang, X. B. / Xu, H. / Tong, S. Y. | |
Contributing Institute: |
Quanten-Theorie der Materialien; IAS-1 Physik der Medizinischen Bildgebung; INM-4 JARA - HPC; JARA-HPC JARA-FIT; JARA-FIT Quanten-Theorie der Materialien; PGI-1 |
Published in: | Physical review letters, 117 (2016) 11, S. 116101 |
Imprint: |
College Park, Md.
APS
2016
|
PubMed ID: |
27661702 |
DOI: |
10.1103/PhysRevLett.117.116101 |
Document Type: |
Journal Article |
Research Program: |
Controlling Configuration-Based Phenomena Controlling Spin-Based Phenomena |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1103/PhysRevLett.117.116101 in citations.
Existing examples of Peierls-type 1D systems on surfaces involve depositing metallic overlayers on semiconducting substrates, in particular, at step edges. Here we propose a new class of Peierls system on the (101¯0) surface of metal-anion wurtzite semiconductors. When the anions are bonded to hydrogen or lithium atoms, we obtain rows of threefold coordinated metal atoms that act as one-atom-wide metallic structures. First-principles calculations show that the surface is metallic, and below a certain critical temperature the surface will condense to a semiconducting state. The idea of surface scaffolding is introduced in which the rows are constrained to move along simple up-down and/or sideways displacements, mirroring the paradigm envisioned in Peierls’s description. We predict that this type of insulating state should be visible in the partially hydrogenated (101¯0) surface of many wurtzite compounds. |