Coupling of kz-dispersing ? bands with surface localized states in graphite

被引：6

作者：

Matsui, Fumihiko ^{[1
,2
]}

Suga, Shigemasa ^{[3
,4
]}

机构：

[1] Inst Mol Sci, Okazaki, Aichi 4448585, Japan

[2] Grad Univ Adv Studies, Okazaki, Aichi 4448585, Japan

[3] Forschungszentrum Julich, Peter Grunberg Inst PGI 6, D-52425 Julich, Germany

[4] Osaka Univ, SANKEN, Ibaraki, Osaka 5670047, Japan

来源：

PHYSICAL REVIEW B | 2022年 / 105卷 / 23期

关键词：

ANGLE-RESOLVED PHOTOEMISSION; FERMI-SURFACE; IMAGES;

D O I：

10.1103/PhysRevB.105.235126

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The graphite kz dispersion from the region with a size of several micrometers was measured via photoelectron momentum microscopy. The it-band dispersion over an entire Brillouin zone was investigated. We found that the degeneracy of the it bands was eliminated in the ALH reciprocal lattice plane and their symmetries were reduced from C6v to C3v. We attributed this phenomenon to the coupling of the graphite surface it band of a single-domain threefold structure with the sixfold bulk kz dispersion which has been neglected to date. We used this symmetry breaking to image the monoatomic step of the graphite surface. Further, the precision of determining kz dispersion and the effect of surface resonance are discussed.

引用

页数：6

共 6 条

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PHYSICAL REVIEW B, 2019, 100 (19)
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NANOTECHNOLOGY, 2012, 23 (22)
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PHYSICAL REVIEW B, 2011, 83 (19):
[6] Angle-resolved photo-intensities in high-T(c)s: Surface states, CuO2 plane bands, lineshapes, and related issues
Bansil, A
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JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1995, 56 (12) : 1855 - 1862

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