Buckled Honeycomb Lattice Materials and Unconventional Magnetic Responses

Simple item page
dc.contributor.ORCID0000-0003-4623-4200 (Zhang, F)en_US
dc.contributor.authorYang, S. A.en_US
dc.contributor.authorPan, H.en_US
dc.contributor.authorZhang, Fanen_US
dc.contributor.utdAuthorZhang, Fanen_US
dc.date.accessioned2016-03-28T19:17:31Z
dc.date.available2016-03-28T19:17:31Z
dc.date.created2015-09-24en_US
dc.date.issued2015-09-24en_US
dc.description.abstractWe study the magnetic response of two-dimensional buckled honeycomb-lattice materials. The buckling breaks the sublattice symmetry, enhances the spin-orbit coupling, and allows the tuning of a topological quantum phase transition. As a result, there are two doubly degenerate spin-valley coupled massive Dirac bands, which exhibit an unconventional Hall plateau sequence under strong magnetic fields. We show how to externally control the splitting of anomalous zeroth Landau levels, the prominent Landau level crossing effects, and the polarizations of spin, valley, and sublattice degrees of freedom. In particular, we reveal that in a p-n junction, spin-resolved fractionally quantized conductance appears in a two-terminal measurement with a spin-polarized current propagating along the interface. In the zero- or low-field regime where the Landau quantization is not applicable, we provide a semiclassical description for the anomalous Hall transport. We comment briefly on the effects of electron-electron interactions and Zeeman couplings to electron spins and to atomic orbitals. Our predictions can be examined in the magneto-transport and/or magneto-optic experiments.en_US
dc.description.sponsorshipWe would like to thank D. L. Deng, Cheng-Cheng Liu, Yugui Yao, J. Xiao, and Chuanwei Zhang for helpful discussions. S. A. Y. is supported by SUTD-SRG-EPD2013062. H. P. is supported by NSFC Grant No. 11174022. F. Z. is supported by UT Dallas research enhancement funds.en_US
dc.identifier.bibliographicCitationYang, S. A., H. Pan, and F. Zhang. 2015. "Buckled honeycomb lattice materials and unconventional magnetic responses." RSC Advances 5(101), doi: 10.1039/C5RA13699G.en_US
dc.identifier.issn2046-2069en_US
dc.identifier.issue101en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/4814
dc.identifier.volume5en_US
dc.language.isoenen_US
dc.publisherRoyal Society of Chemistryen_US
dc.relation.urihttp://dx.doi.org/10.1039/c5ra13699g
dc.rights©2015 The Royal Society of Chemistry. This article may not be further made available or distributed.en_US
dc.sourceRSC Advances
dc.subjectDegree of freedomen_US
dc.subjectElectron-electron interactionsen_US
dc.subjectHoneycomb structuresen_US
dc.subjectMagnetismen_US
dc.subjectPhase transformations (Statistical physics)en_US
dc.subjectQuantum chemistryen_US
dc.subjectQuantum electronicsen_US
dc.subjectSemiconductors--Junctionsen_US
dc.subjectLandau quantizationen_US
dc.subjectQuantum phase transitionsen_US
dc.subjectSpin polarized currentsen_US
dc.subjectSpin-orbit interactionsen_US
dc.subjectMagnetic fieldsen_US
dc.subjectSymmetry (Mathematics)en_US
dc.subjectElectrospinningen_US
dc.titleBuckled Honeycomb Lattice Materials and Unconventional Magnetic Responsesen_US
dc.type.genreArticleen_US

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
NSM-4174-273778.91.pdf
Size:
1.36 MB
Format:
Adobe Portable Document Format
Description:
Article
Download

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
ROYAL SOCIETY OF CHEMISTRY.pdf
Size:
86.56 KB
Format:
Adobe Portable Document Format
Description:
Download

Collections

Zhang, Fan