Predicted electronic markers for polytypes of LaOBiS2 examined via angle-resolved photoemission spectroscopy

doi:10.1103/PhysRevB.95.075118

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院强磁场科学中心

	Predicted electronic markers for polytypes of LaOBiS2 examined via angle-resolved photoemission spectroscopy
	Zhou, Xiaoqing 1; Liu, Qihang 2; Waugh, J. A.1; Li, Haoxiang 1; Nummy, T.1; Zhang, Xiuwen 2; Zhu, Xiangde 3; Cao, Gang 4; Zunger, Alex 2; Dessau, D. S.1,2
刊名	PHYSICAL REVIEW B
	2017-02-09
卷号	95 期号:7 页码:1-9
DOI	10.1103/PhysRevB.95.075118
文献子类	Article
英文摘要	The natural periodic stacking of symmetry-inequivalent planes in layered compounds can lead to the formation of natural superlattices; albeit close in total energy, (thus in their thermodynamic stability), such polytype superlattices can exhibit different structural symmetries, thus have markedly different electronic properties which can in turn be used as "structural markers". We illustrate this general principle on the layered LaOBiS2 compound where density(functional theory (DFT) calculations on the (BiS2)/(LaO)/(BiS2) polytype superlattices reveal both qualitatively and quantitatively distinct electronic structure markers associated with the Rashba physics, yet the total energies are only similar to 0.1 meV apart. This opens the exciting possibility of identifying subtle structural features via electronic markers. We show that the pattern of removal of band degeneracies in different polytypes by the different forms of symmetry breaking leads to Rashba "minigaps" with characteristic Rashba parameters that can be determined from spectroscopy, thereby narrowing down the physically possible polytypes. By identifying these distinct DFT(predicted fingerprints via angle(resolved photoemission spectroscopy (ARPES) measurements on LaBiOS2 we found the dominant polytype with small amounts ofmixtures of other polytypes. This conclusion, consistent with neutron scattering results, establishes ARPES detection of theoretically established electronic markers as a powerful tool to delineate energetically quasidegenerate polytypes.
WOS关键词	SEMICONDUCTORS ; TRANSISTORS ; CRYSTALS ; GROWTH ; FILMS
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000393590500001
资助机构	National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; University of Kentucky ; University of Kentucky ; University of Kentucky ; University of Kentucky ; University of Kentucky ; University of Kentucky ; University of Kentucky ; University of Kentucky ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; National Science Foundation (NSF) Designing Materials to Revolutionize and Engineer our Future (DMREF)(DMR-1334170) ; University of Kentucky ; University of Kentucky ; University of Kentucky ; University of Kentucky ; University of Kentucky ; University of Kentucky ; University of Kentucky ; University of Kentucky ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231) ; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy(DE-AC02-05CH11231)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/32827]
专题	合肥物质科学研究院_中科院强磁场科学中心
作者单位	1.Univ Colorado, Dept Phys, Boulder, CO 80309 USA 2.Univ Colorado, Renewable & Sustainable Energy Inst, Boulder, CO 80309 USA 3.Chinese Acad Sci, High Field Magnet Lab, Hefei, Peoples R China 4.Univ Kentucky, Lexington, KY 40506 USA
推荐引用方式 GB/T 7714	Zhou, Xiaoqing,Liu, Qihang,Waugh, J. A.,et al. Predicted electronic markers for polytypes of LaOBiS2 examined via angle-resolved photoemission spectroscopy[J]. PHYSICAL REVIEW B,2017,95(7):1-9.
APA	Zhou, Xiaoqing.,Liu, Qihang.,Waugh, J. A..,Li, Haoxiang.,Nummy, T..,...&Dessau, D. S..(2017).Predicted electronic markers for polytypes of LaOBiS2 examined via angle-resolved photoemission spectroscopy.PHYSICAL REVIEW B,95(7),1-9.
MLA	Zhou, Xiaoqing,et al."Predicted electronic markers for polytypes of LaOBiS2 examined via angle-resolved photoemission spectroscopy".PHYSICAL REVIEW B 95.7(2017):1-9.